Airtight closure mechanism for a reclosable pouch

Information

  • Patent Grant
  • 7857515
  • Patent Number
    7,857,515
  • Date Filed
    Friday, June 15, 2007
    17 years ago
  • Date Issued
    Tuesday, December 28, 2010
    13 years ago
Abstract
An airtight closure mechanism for a reclosable pouch includes first and second complementary closure elements, the first closure element comprising a first interlocking profile and the second closure element comprising a complementary second interlocking profile. First and second sealing sections are disposed on respective complementary sides of the first and second interlocking profiles. The first sealing section includes a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending between the first and second distal surfaces of the first and second protuberances, respectively. The second sealing section includes a sealing member disposed on a base of the second closure element. The sealing member is located a distance from the second interlocking profile that places a distal surface thereof between the first and second protuberances when the first and second interlocking profiles are occluded. Additionally, when the first and second interlocking profiles are occluded, the distal surface urges against the sealing flange to form an airtight seal therebetween.
Description
CROSS REFERENCE TO RELATED APPLICATIONS

Not applicable


REFERENCE REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable


SEQUENTIAL LISTING

Not applicable


BACKGROUND OF THE INVENTION

1. Field of the Invention


The invention relates generally to an airtight closure mechanism for a reclosable pouch.


2. Description of the Background of the Invention


Thermoplastic pouch openings are frequently sealed using resealable closure assemblies. In addition, resealable closure mechanisms having a single pair of opposing elongate interlocking profiles that are occluded between a user's fingers to create a seal are known. Moreover, it is common to employ closure mechanisms having multiple pairs of elongate interlocking profiles when a stronger and more secure seal is desired.


Recently, efforts have been directed to developing improved closures for resealable packages. For example, one resealable closure mechanism has a first fastener profile that involves a first tape having a protrusion extending along the surface of the tape, and a second fastener profile that involves a second tape having a substantially C-shaped member extending along the surface of the tape. When the pouch is closed, front and back walls of the pouch are captured between the interlocked protrusion and C-shaped member.


Another closure assembly involves a slider-actuated closure mechanism where a thin pliable membrane gets captured between first and second interlockable profiles of the closure mechanism. The membrane may be initially connected to the tops of the profiles across a mouth of the bag such that two layers of membrane material are captured between the closure mechanism profiles. Additionally, the membrane forms a tamper proof hermetic seal in an unopened package that requires the membrane to be sliced open to allow access to the inside of the package.


In another closure assembly, interlocking rib and groove elements act to reclosably seal a pouch opening. A funnel-shaped bag is connected to inner walls of the pouch just below the rib and groove elements and when inverted, the funnel shaped bag may be disposed between the interlocking rib and groove elements.


An additional resealable closure assembly involves interlocking channels disposed along a pouch opening. A flexible strip extends along one side of the pouch up through the pouch and along the interlocking channel disposed on the side of the pouch. When the pouch is closed, the interlocking channels are pressed into each other with the flexible strip disposed between the interlocking channels.


In another closure assembly, a reclosable closure mechanism has a first profile and a second profile where the profiles have complementary bulbous members that interlock in a tight interference fit. The first profile is also provided with an asymmetrical arrow-shaped member that is interlockable with a groove element on the second profile.


In yet another closure assembly, a permanently closing plastic profile fastener has male and female profiles. The male profile is generally arrow-shaped and the female profile has a pair of side jaws which define a groove therebetween. The male profile is restrained from entering the female profile by a frangible diaphragm disposed across ends of the jaws of the female profile. The diaphragm blocks access into the female profile until a predetermined level of force is applied to push the profiles together, thereby fracturing the diaphragm and allowing the male profile to enter.


An additional closure assembly involves first and second mutually interlocking profiles having two sets of interlocking members. In addition, the central portion has at least one profile with a collapsible member. When the first and second mutually interlocking profiles are joined, the collapsible member compresses against the other profile to create a seal.


SUMMARY OF THE INVENTION

In one aspect of the present invention, an airtight closure mechanism for a reclosable pouch includes first and second complementary closure elements, the first closure element comprising a first interlocking profile and the second closure element comprising a complementary second interlocking profile. First and second sealing sections are disposed on respective complementary sides of the first and second interlocking profiles. The first sealing section includes a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending between the first and second distal surfaces of the first and second protuberances, respectively. The second sealing section includes a sealing member disposed on a base of the second closure element. The sealing member is located a distance from the second interlocking profile that places a distal surface thereof between the first and second protuberances when the first and second interlocking profiles are occluded. Additionally, when the first and second interlocking profiles are occluded, the distal surface urges against the sealing flange to form an airtight seal therebetween.


In another aspect of the present invention, a reclosable pouch includes first and second pouch sidewalls sealed to one another to define an opening. A one-way valve is disposed on or in at least one of the first or second pouch sidewalls. An airtight closure mechanism includes first and second closure elements that include first and second interlocking profiles, and first and second sealing sections, respectively. The first closure element is attached to the first sidewall and the second closure element is attached to the second sidewall proximate the opening to define a pouch interior. The first and second sealing sections are disposed on respective pouch interior sides of the first and second interlocking profiles, and the first sealing section includes a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending across the first and second distal surfaces of the first and second protuberances, respectively. The second sealing section includes a sealing member disposed on a base of the second closure element and located a distance from the second interlocking profile that places a distal surface thereof between the first and second protuberances when the first and second interlocking profiles are occluded. When the first and second interlocking profiles are occluded, the sealing member urges against the sealing flange to form an airtight seal therebetween.


In another aspect of the present invention, a sealing section for an airtight closure mechanism includes first and second sealing sections disposed on respective complementary sides of first and second closure elements. The first sealing section includes a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending across from the first and second distal surfaces of the first and second protuberances, respectively. The second sealing section includes a sealing member disposed on the second closure element and located on a base of the second closure element so as to urge against the sealing flange attached to and extending across from the first and second protuberances when the first and second closure elements are occluded to form an airtight seal therebetween.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is an isometric view of a reclosable pouch;



FIG. 2A is an enlarged partial cross-sectional view of an airtight closure mechanism in a non-occluded state in accordance with one embodiment of the present invention taken generally along the lines 2-2 of FIG. 1;



FIG. 2B is an enlarged partial cross-sectional view of an airtight closure mechanism in an occluded state in accordance with the embodiment of the present invention depicted in FIG. 2A;



FIG. 3A illustrates an enlarged partial cross-sectional view of a second embodiment in a non-occluded state taken generally along the lines 2-2 of FIG. 1;



FIG. 3B illustrates an enlarged partial cross-sectional view of the embodiment depicted in FIG. 3A in an occluded state;



FIG. 4A is an enlarged partial cross-sectional view of a third embodiment of the present invention in a non-occluded state taken generally along the lines 2-2 of FIG. 1;



FIG. 4B illustrates an enlarged partial cross-sectional view of the embodiment depicted in FIG. 4A in an occluded state;



FIG. 5A is an enlarged partial cross-sectional view of a fourth embodiment taken generally along the lines 2-2 of FIG. 1; and



FIG. 5B is an enlarged partial cross-sectional view of a fifth embodiment taken generally along the lines 2-2 of FIG. 1.





Other aspects and advantages of the present invention will become apparent upon consideration of the following detailed description, wherein similar structures have similar reference numerals.


DETAILED DESCRIPTION

Referring to FIG. 1, a reclosable thermoplastic pouch 10 includes first and second sidewalls 11, 12 joined around three edges 5a-5c by heat sealing or other sealing method known in the art to define an opening 13. Alternatively, the bottom edge 5b may be a fold line between the first and second side walls 11, 12. A closure mechanism 14 extends from the first and second sidewalls 11, 12 proximate the pouch opening 13. The closure mechanism 14 and the first and second sidewalls 11, 12 define a pouch interior 7. When occluded, the closure mechanism 14 provides an airtight seal such that a vacuum may be maintained in the pouch interior 7 for a desired period of time, such as days, months, or years, when the closure mechanism is sealed fully across the opening 13. Protuberances, for example ridges 300, 302, may also be disposed on the inner surfaces 15, 17 of the respective first and second side walls 11, 12 proximate the opening 13 to provide increased traction in a convenient area for a user to grip, such as a gripping flange, when trying to open the sealed pouch 10.


In one embodiment, the pouch 10 may include a second opening 13a through one of the sidewalls 11, 12 covered by a valve 6, such as a check or one-way valve, to allow air to be evacuated from the pouch interior 7 and maintain a vacuum when the closure mechanism 14 has been sealed. As shown in FIG. 1, the valve 6 may be disposed on the second sidewall 12 spaced from the closure mechanism 14. When in an open state, the valve 6 provides a fluid path with fluid communication between the pouch interior 7 and an exterior of the pouch. Illustrative valves useful in the present invention include those disclosed in, for example, Newrones et al. U.S. Patent application publication No. 2006/0228057. Other valves useful in the present invention include those disclosed in, for example, Ser. Nos. 11/818,592, 11/818,586, and 11/818,591, each filed on the same day as the present application. Although not shown, in some embodiments an evacuation pump or device may be used to evacuate fluid from the pouch 10 through, for example, the valve 6 disposed in one of the side walls 11, 12, or in the closure mechanism 14 or one of the side edges 5a, 5b, 5c of the pouch. Illustrative evacuation pumps or devices useful in the present invention include those disclosed in, for example, Ser. No. 11/818,703 filed on the same day as the present application.


In one embodiment, the first and second sidewalls 11, 12 and/or the closure mechanism 14 are formed from thermoplastic resins by known extrusion methods. For example, the sidewalls 11, 12 may be independently extruded of thermoplastic material as a single continuous or multi-ply web, and the closure mechanism 14 may be extruded of the same or different thermoplastic material(s) separately as continuous lengths or strands. Illustrative thermoplastic materials include polypropylene (PP), polyethylene (PE), metallocene-polyethylene (mPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ultra low density polyethylene (ULDPE), biaxially-oriented polyethylene terephthalate (BPET), high density polyethylene (HDPE), polyethylene terephthalate (PET), among other polyolefin plastomers and combinations and blends thereof. Further, inner surfaces 15, 17 of the respective sidewalls 11, 12 or a portion or area thereof may, for example, be composed of a polyolefin plastomer such as an AFFINITY™ resin manufactured by Dow Plastics. Such portions or areas include, for example, the area of one or both of the sidewalls 11, 12 proximate and parallel to the closure mechanism 14 to provide an additional cohesive seal between the sidewalls when the pouch 10 is evacuated of fluid. One or more of the sidewalls 11, 12 in other embodiments may also be formed of air-impermeable film. An example of an air-impermeable film includes a film having one or more barrier layers, such as an ethylene-vinyl alcohol copolymer (EVOH) ply or a nylon ply, disposed between or on one or more of the plies of the sidewalls 11, 12. The barrier layer may be, for example, adhesively secured between the PP and/or LDPE plies to provide a multilayer film. Other additives such as colorants, slip agents, and antioxidants, including for example talc, oleamide or hydroxyl hydrocinnamate may also be added as desired. In another embodiment, the closure mechanism 14 may be extruded primarily of molten PE with various amounts of slip component, colorant, and talc additives in a separate process. The fully formed closure mechanism 14 may be attached to the pouch body using a strip of molten thermoplastic weld material, or by an adhesive known by those skilled in the art, for example. Other thermoplastic resins and air-impermeable films useful in the present invention include those disclosed in, for example, Tilman et al. U.S. Patent application publication No 2006/0048483.


Although not shown, one or both sidewalls, such as the second sidewall 12, may also be embossed or otherwise textured with a pattern, such as a diamond pattern, on one or both surfaces spaced between the bottom edge 5b and the closure mechanism 14, or a separate textured or embossed patterned wall may be used to provide flow channels (not shown) within the pouch interior 7. The flow channels may provide fluid communication between the pouch interior 7 and the valve 6 when fluid is being drawn through the valve 6. Illustrative flow channels useful in the present invention include those disclosed in Zimmerman et al. U.S. Patent application publication No. 2005/0286808 and Tilman et al. U.S. Patent application publication No. 2006/0048483. Other flow channels useful in the present invention include those disclosed in, for example, Ser. No. 11/818,584 filed on the same day as the present application.


The resealable bag or pouch described herein can be made by various techniques known to those skilled in the art including those described in, for example, Geiger, et al., U.S. Pat. No. 4,755,248. Other useful techniques to make a resealable pouch include those described in, for example, Zieke et al., U.S. Pat. No. 4,741,789. Additional techniques to make a resealable pouch include those described in, for example, Porchia et al., U.S. Pat. No. 5,012,561. Additional examples of making a resealable pouch as described herein include, for example, a cast post applied process, a cast integral process, and/or a blown process.


Referring to FIGS. 2A and 2B, the closure mechanism 14 comprises a first closure element 20 that includes a first interlocking profile 22a and a second closure element 24 that includes a complementary second interlocking profile 26a. The first closure element 20 may also include a third interlocking profile 22b and the second closure element 24 may include a complementary fourth interlocking profile 26b. The first closure element 20 and second closure element 24 are elongate and extend along the opening 13 of the pouch 10. FIG. 2A depicts the first and second closure elements 20, 24 in a non-occluded state while FIG. 2B shows the first and second closure elements 20, 24 in an occluded state. In this embodiment, the first closure element 20 is attached to an outer surface 16 of the second sidewall 12, and the second closure element 24 is attached to the inner surface 15 of the first sidewall 11. The first and second interlocking profiles 22a, 26a are shown in FIGS. 2A and 2B as female and male closure profiles, respectively, and the third and fourth interlocking profiles 22b, 26b are shown in FIGS. 2A and 2B as male and female closure profiles, respectively. However, the configuration and geometry of the interlocking profiles 22a, 22b, 26a, 26b or closure elements 20, 24 shown herein may vary.


In a further embodiment, one or both of the first and second closure elements 20, 24 may include one or more textured portions, such as a bump or crosswise groove in one or more of the interlocking profiles 22a, 22b, 26a, 26b in order to provide a tactile sensation, such as a series of clicks, as a user draws the fingers along the closure mechanism 14 to seal the closure elements across the opening. In another embodiment, all of the closure profiles 22a, 22b, 26a, 26b include textured portions along the length of each profile to provide tactile and/or audible sensations when closing the closure mechanism 14. Further, in some embodiments, a sealing material such as a polyolefin material or a caulking composition such as silicone grease may be disposed on or in the interlocking profiles 22a, 22b, 26a, 26b or closure elements 20, 24 to fill in any gaps or spaces therein when occluded. The ends of the interlocking profiles 22a, 22b, 26a, 26b or closure elements 20, 24 may also be welded or sealed by ultrasonic vibrations as is known in the art. Illustrative interlocking profiles, closure elements, sealing materials, tactile or audible closure elements, and/or end seals useful in the present invention include those disclosed in, for example, Pawloski U.S. Pat. No. 4,927,474, Dais et al. U.S. Pat. Nos. 5,070,584, 5,478,228, and 6,021,557, Tomic et al. U.S. Pat. No. 5,655,273, Sprehe U.S. Pat. No. 6,954,969, Kasai et al. U.S. Pat. No. 5,689,866, Ausnit U.S. Pat. No. 6,185,796, Wright et al. U.S. Pat. No. 7,041,249, Pawloski et al. U.S. Pat. No. 7,137,736, Anderson U.S. Patent Application Publication No. 2004/0091179, Pawloski U.S. Patent Application Publication No. 2004/0234172, Tilman et al. U.S. Patent Application Publication No. 2006/0048483, and Anzini et al. U.S. Patent Application Publication Nos. 2006/0093242 and 2006/0111226. Other interlocking profiles and closure elements useful in the present invention include those disclosed in, for example, U.S. patent application Ser. No. 11/725,120, filed Mar. 16, 2007, and Ser. Nos. 11/818,593 and 11/818,596 each filed on the same day as the present application. It is further appreciated that the interlocking profiles or closure elements disclosed herein may be operated by hand, or a slider (not shown) may be used to assist in occluding and de-occluding the interlocking profiles and closure elements.


As shown in FIGS. 2A and 2B, a first sealing section 25 is disposed on the first closure element 20 between the first and third interlocking profiles 22a, 22b, and includes a first protuberance 28 having a distal surface 30 and extending from an elongate first base 21 of the first closure element. A central axis 28a of the first protuberance 28 is located a distance X measured along the first base 21 from a line perpendicular to the base and through a distal end 29 of the first interlocking profile 22a. This spacing of the central axis 28a of the first protuberance 28 at distance X allows for proper securement of the first and the second closure elements 20, 24 and may range, for example, from greater than about 0.08 inches to less than about 0.20 inches. The first sealing section 25 also includes a second protuberance 32 having a distal surface 34 and extending from the elongate first base 21 of the first closure element 20. A central axis 32a of the second protuberance 32 is located a distance Y measured along the first base 21 from a line perpendicular to the base and through the distal end 29 of the first interlocking profile 22a. In this embodiment, the distance Y is greater than the distance X, and the difference is represented by distance Y′. Illustratively, the distance Y′ between the central axes 28a and 32a allows for a sealing flange 39 to extend from and across the distal surfaces 30, 34 of the first and second protuberances 28, 32, respectively. In this embodiment, the sealing flange 39 is integral with the second pouch sidewall 12, and in other embodiments the sealing flange 39 is a separate piece of thermoplastic film.


A second sealing section 27 is disposed on the second closure element 24 between the second and fourth interlocking profiles 26a, 26b, and includes a sealing member 36 having a distal surface 38. In this embodiment, the distal surface 38 is disposed at an apex of a third protuberance 137 that extends from an elongate second base 23 of the second closure element. Although in this embodiment the third protuberance 137 is disposed at an angle of less than 90 degrees relative to the second base 23, it is also contemplated that the third protuberance may be disposed at angles of approximately 90 degrees or greater than 90 degrees. However, by having the third protuberance 137 at a non-90 degree angle, the force necessary to urge the sealing member 36 and the sealing flange 39 together may be less due to the flexibility of the third protuberance as force is applied thereto while the first and second closure elements 20, 24 are being occluded. This flexibility increases as the angle increases past 90 degrees or decreases to less than 90 degrees, and may in some instances assist in maintaining an airtight seal with the sealing flange 39. A central axis 36a of the distal surface 38 of the sealing member 36 is located a distance Z measured along the first base 21 from a line perpendicular to the base and through the distal end 29 of the first interlocking profile 22a when the closure elements 20 and 24 are occluded. In this embodiment, the central axis 36a of the distal surface 38 does not correspond to a central axis (not shown) of the third protuberance 137. The distance Z ranges between the distances X and Y in this embodiment, such that the central axis 36a is disposed between opposing outer edges 35, 37 of the distal surfaces 30, 34, respectively in the occluded state, as shown in FIG. 2B.


When the closure elements 20, 24 are urged together the first interlocking profile 22a interlocks with the second interlocking profile 26a, and the third interlocking profile 22b interlocks with the fourth interlocking profile 26b. In this embodiment, because the sealing flange 39 is integral with the second pouch sidewall 12, the third and fourth interlocking profiles 22b, 26b interlock with the sealing flange trapped therebetween. In other embodiments, the sealing flange 39 may be made of a thermoplastic film independent of the sidewalls 11, 12 such as, for example, an elastomer or a polyolefin plastomer such as an AFFINITY™ resin manufactured by Dow Plastics, and the third and fourth interlocking profiles 22b, 26b may interlock without the sealing flange trapped therebetween. Additionally, in the occluded state, the first protuberance 28 interlocks with an asymetrically-hooked protuberance 31 that extends from the elongate second base 23 of the second closure element 24. Although the first and second protuberances 28, 32 are illustrated in FIGS. 2A and 2B as T-shaped protuberances and a post shape is shown for the sealing member 36, other shapes may also be used, including for example, bulbous members, arrow or half-arrow shaped members, or rectangular, square-shaped, round, or triangular-shaped protrusions, as well as any combination thereof.


In another embodiment illustrated in FIGS. 3A and 3B, a closure mechanism 41 includes a first closure element 40 having a first interlocking profile 42a and a second closure element 44 having a complementary second interlocking profile 46a. The first closure element 40 may also include a third interlocking profile 42b and the second closure element 44 may include a complementary fourth interlocking profile 46b. FIG. 3A depicts the first and second closure elements 40, 44 in a non-occluded state while FIG. 3B shows the first and second closure elements 40, 44 in an occluded state. In this embodiment, the first closure element 40 is attached to the inner surface 17 of the second sidewall 12 and the second closure element 44 is attached to the inner surface 15 of the first sidewall 11. Illustratively, the first and fourth interlocking profiles 42a, 46b are shown as female and the second and third interlocking profiles 46a, 42b are shown as male closure profiles, however, the configuration and geometry of the interlocking profiles 42a, 42b, 46a, 46b or closure elements 40, 44 may vary as described previously herein. A first sealing section 47 extends from an elongate first base 43 of the first closure element 40 and contains a first protuberance 48 and a second protuberance 54 each having one or more sidewalls that extend substantially perpendicularly from the elongate first base 43. The first protuberance 48 has a distal surface 50 and a central axis 48a located a distance XX measured along the first base 43 from a line perpendicular to the base and through the distal end 53 of the first interlocking profile 42a. The second protuberance 54 has a distal surface 56 and a central axis 54a of the second protuberance 54 is located a distance YY measured along the first base 43 from a line perpendicular to the base and through the distal end 53 of the first interlocking profile 42a. In this embodiment, the distance YY is greater than the distance XX, and the difference is represented by distance YY′. A second sealing section 49 includes a sealing member 58 having a distal surface 60 disposed at an apex of a third protuberance 158 that extends similar to that as shown in FIGS. 2A and 2B at an angle of less than 90 degrees from an elongate second base 45 of the second closure element 44. The sealing member 58 has one or more sidewalls that extend substantially parallel to one another from the elongate second base 45. A central axis 58a of the distal surface 60 of the sealing member 58 is located a distance ZZ measured along the first base 43 from a line perpendicular to the base and through the distal end 53 of the first interlocking profile 42a when the closure elements 40 and 44 are occluded. In this embodiment, the central axis 58a of the distal surface 60 does not correspond to a central axis (not shown) of the third protuberance 158. A sealing flange 66 extends across and is attached to the distal surface 50 of the first protuberance 48 and the distal surface 56 of the second protuberance 54. In this embodiment, the sealing flange 66 may be made of a thermoplastic film independent of the sidewalls 11, 12 such as, for example, an elastomer or a polyolefin plastomer such as an AFFINITY™ resin. However, in other embodiments, the sealing flange 66 may be made of one of the sidewalls 11, 12 or of the same or similar material(s). When the first closure element 40 and the second closure element 44 are urged together, as shown in FIG. 3B, the first interlocking profile 42a interlocks with the second interlocking profile 46a and the third interlocking profile 42b interlocks with the fourth interlocking profile 46b. In the occluded state, the sealing member 58 is urged against the sealing flange 66 to form an airtight seal therebetween.


Referring to FIGS. 4A and 4B, the closure mechanism 81 includes a first closure element 80 that has a first interlocking profile 82 and a second closure element 84 that includes a complementary second interlocking profile 86. FIG. 4A depicts the first and second closure elements 80, 84 in a non-occluded state while FIG. 4B shows the first and second closure elements 80, 84 in an occluded state. In this embodiment, the first closure element 80 is attached to the outer surface 16 of the second sidewall 12, and the second closure element 84 is attached to an outer surface 19 of the first sidewall 11.


A first sealing section 87 disposed on the first closure element 80 includes a first protuberance 98 having a distal surface 100 and extending from an elongate first base 83 of the first closure element. A central axis 98a of the first protuberance 98 is located a distance T measured along the first base 83 from a line perpendicular to the base and through a distal end 93 of the first interlocking profile 82. The first sealing section 87 also includes a second and third protuberance, 108, 110 respectively positioned on either side of the first protuberance 98. The second and third protuberances 108, 110 extend from the elongate first base 83 of the first closure element 80 and have respective distal surfaces 109, 114. A second sealing section 89 disposed on the second closure element 84 includes a first sealing member 88 having a distal surface 90 disposed at an apex of a fourth protuberance 188 that extends approximately 90 degrees or perpendicularly from an elongate second base 85 of the second closure element. A central axis 88a of the distal surface 90 generally corresponds in this embodiment to that of the first sealing member 88 and is located a distance R measured along the first base 83 from a line perpendicular to the base and through the distal end 93 of the first interlocking profile 82 when the closure elements 80 and 84 are occluded. The second sealing section 89 further includes a second sealing member 94 having a distal surface 96 that is disposed at an apex of a fifth protuberance 194 and also extends approximately 90 degrees or perpendicularly from the elongate second base 85 of the second closure element 84. A central axis 94a of the distal surface 96 also generally corresponds to that of the second sealing member 94 and is located a distance S measured along the first base 83 from a line perpendicular to the base and through the distal end 93 of the first interlocking profile 82 when the closure elements 80 and 84 are occluded. In this embodiment, the distance S is greater than the distance T, which is greater than the distance R. Although both of the first and second sealing members 88, 94 have generally perpendicularly disposed respective fourth and fifth protuberances 188, 194, it is also contemplated that one or both may be disposed at an angle less than 90 degrees. The first closure element 80 may also include a third interlocking profile (not shown) on a product side of the first sealing section 87, and the second closure element 84 may include a complementary fourth interlocking profile (not shown) on the product side of the second sealing section 89.


A sealing flange 106 is attached respectively to the distal surfaces 100, 109, 114 of the first, second, and third protuberances, 98, 108, 110, respectively. In this embodiment, the sealing flange 106 is a part of the second sidewall 12. However, in other embodiments, the sealing flange 106 may be made of a thermoplastic film independent of the sidewalls 11, 12 such as, for example, an elastomer or a polyolefin plastomer such as an AFFINITY™ resin. The sealing flange 106 also includes a slit along a length thereof to form film flaps 112 to allow penetration of the first and second sealing members 88, 94 into spaces between the first protuberance 98 and the second protuberance 108 and the first protuberance 98 and the third protuberance 110, respectively, when the first closure element 80 and second closure element 84 are occluded. In the occluded state shown in FIG. 4B, the film flaps 112 are urged against respective surfaces of the first, second, third, fourth, and fifth protuberances 98, 108, 110, 188, 194 to form airtight seals between the first and second sealing members 88, 94 and the sealing flange 106. However, in other embodiments not shown, the first and second sealing members 88, 94 may be further spaced from the respective first, second, and third protuberances 98, 108, 110. In these embodiments, the film flaps 112 form an airtight seal with the first and second sealing members 88, 94 and have little or no contact with the respective surfaces of the first, second, and third protuberances 98, 108, 118. In FIGS. 4A and 4B, the sidewalls of the first through fifth protuberances 98, 108, 110, 188, 194 are substantially parallel and perpendicular relative to the elongate first and second bases 83, 85, but it is contemplated that any angle or shaped wall including straight, curved, arched, or serpentine, for example, may be used.


Referring to FIGS. 5A and 5B, a first closure element 120 is attached to the outer surface 16 of the second sidewall 12 and a second closure element 122 is attached (not shown) either to the inner or outer surfaces 15, 17 of the first sidewall 11. A first sealing section 121 includes a first protuberance 124 having a distal surface 126, a second protuberance 128 having a distal surface 130, and a third protuberance 132 having a distal surface 134, wherein each of the protuberances 124, 128, 132 extends from an elongate first base 136 of the first closure element 120. A second sealing section 123 includes a first sealing member 138 having a distal surface 144 and a second sealing member 140 having a distal surface 146, wherein each of the first and second sealing members 138, 140 extends approximately perpendicularly or about 90 degrees from an elongate second base 142 of the second closure element 122. A sealing flange 148 extends across and is attached to the distal surfaces 126, 130, 134 of the first, second, and third protuberances 124, 128, 132 respectively. In the occluded state, each of the first and second sealing members 138, 140 is urged against the sealing flange 148 to form an airtight seal therebetween. In this embodiment, the sealing flange 148 is a part of the second sidewall 12. However, in other embodiments, the sealing flange 148 may be made of a thermoplastic film independent of the sidewalls 11, 12 such as, for example, an elastomer or a polyolefin plastomer such as an AFFINITY™ resin.


In FIG. 5A, each sealing member, 138, 140 has a respective fourth and fifth protuberance 238a, 240a that each has a width of W′. In FIG. 5B, each of the fourth and fifth protuberances 238b, 240b has a width of W″. The increased width (W″) of each of the fourth and fifth protuberances 238b, 240b in FIG. 5B relative to each of the fourth and fifth protuberances 238a, 240a of width W′ in FIG. 5A results in an increased surface area upon which to contact the sealing flange 148. The increase in surface area results in a larger portion of the sealing flange 148 being contacted by the first and second sealing members 138, 140 in the occluded state, which may enhance sealing performance. Other ways to enhance sealing performance, include, for example, creating a tighter interference fit between the sealing flange 148 and one or more of the sealing members such as the first and second sealing members 138, 140. Illustratively, this can be achieved by increasing the length of the fourth or fifth protuberances 238a, 238b, or 240a, 240b, or the length of one or more of the first, second, or third protuberances 124, 128, 132. When the respective closure elements 120, 122 are urged together and become occluded, greater force may be required to occlude the closure elements due to a greater force required to urge the first and second sealing members 138, 140 and the sealing flange 148 together to form an airtight seal. Still other ways to enhance sealing performance, include, for example, using a thicker web or using multiple plies of material (not shown) to form a thicker sealing flange 148, or using a more resilient material to create a tighter interference fit between the first and second sealing members 138, 140 and the sealing flange.


Although the present invention has been described relative to specific exemplary embodiments thereof, it will be understood by those skilled in the art that modifications can be made thereto without departing from the scope and spirit of the invention.


INDUSTRIAL APPLICATION

An airtight closure mechanism is presented that may be used to pack and store perishable items in an airtight or vacuum environment. The closure mechanism includes first and second closure elements, wherein each of the closure elements has interlocking and sealing sections. A sealing flange is attached across the sealing section of one of the first and second closure elements, and the other of the first and second closure elements includes a sealing member. When the first and second closure elements are occluded, the sealing member is urged against the sealing flange and forms an airtight seal therebetween.


Numerous modifications to the present invention will be apparent to those skilled in the art in view of the foregoing description. Accordingly, this description is to be construed as illustrative only and is presented for the purpose of enabling those skilled in the art to make and use the invention and to teach the best mode of carrying out same. The exclusive rights to all modifications which come within the scope of the appended claims are reserved. All patents, patent publications and applications, and other references cited herein are incorporated by reference herein in their entirety.

Claims
  • 1. An airtight closure mechanism for a reclosable pouch, comprising: first and second complementary closure elements, the first closure element comprising a first interlocking profile and the second closure element comprising a complementary second interlocking profile; andfirst and second sealing sections disposed on respective complementary sides of the first and second interlocking profiles, the first sealing section comprising a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending between the first and second distal surfaces of the first and second protuberances, respectively, and the second sealing section comprising a sealing member disposed on a base of the second closure element and located a distance from the second interlocking profile that places a distal surface thereof between the first and second protuberances when the first and second interlocking profiles are occluded;wherein when the first and second interlocking profiles are occluded, the distal surface urges against the sealing flange to form an airtight seal therebetween.
  • 2. The airtight closure mechanism of claim 1, wherein the first and second closure elements are elongate and disposed along an opening of the pouch, and one or more of the closure profiles includes a textured portion along the length of each profile to provide tactile and/or audible sensations when the closure mechanism is occluded.
  • 3. The airtight closure mechanism of claim 1, wherein the first closure element is attached on an outer surface of a first pouch sidewall and the second closure element is attached to an inner surface of a second pouch sidewall.
  • 4. The airtight closure mechanism of claim 3, wherein the sealing flange comprises the first pouch sidewall.
  • 5. The airtight closure mechanism of claim 1 further comprising a third protuberance disposed on the second closure element and adapted to releasably interlock with the first protuberance when the first and second interlocking profiles are occluded.
  • 6. The airtight closure mechanism of claim 5, wherein the third protuberance comprises a hook portion to releasably interlock with the first protuberance.
  • 7. The airtight closure mechanism of claim 1, wherein the first interlocking profile and the first protuberance are integral.
  • 8. The airtight closure mechanism of claim 1, wherein the sealing flange comprises a slit disposed therein to allow penetration of the distal surface into a space between the first protuberance and the second protuberance when the first and second closure elements are occluded.
  • 9. The airtight closure mechanism of claim 1, wherein the first and second protuberances independently comprise a post, a bulbous member, a T-shaped member, an arrow or half-arrow shaped member, or a rectangular, square-shaped, round, or triangular-shaped protrusion.
  • 10. The airtight closure mechanism of claim 1, wherein the first and second interlocking profiles are female and male closure profiles, respectively.
  • 11. A reclosable pouch, comprising: first and second pouch sidewalls sealed to one another to define an opening;a one-way valve disposed on or in at least one of the first or second pouch sidewalls;an airtight closure mechanism comprising first and second closure elements that include first and second interlocking profiles, and first and second sealing sections, respectively;the first closure element attached to the first sidewall and the second closure element attached to the second sidewall proximate the opening to define a pouch interior; andthe first and second sealing sections disposed on respective pouch interior sides of the first and second interlocking profiles, the first sealing section comprising a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending across the first and second distal surfaces of the first and second protuberances, respectively, and the second sealing section comprising a sealing member disposed on a base of the second closure element and located a distance from the second interlocking profile that places a distal surface thereof between the first and second protuberances when the first and second interlocking profiles are occluded;wherein when the first and second interlocking profiles are occluded, the sealing member urges against the sealing flange to form an airtight seal therebetween.
  • 12. The pouch of claim 11, wherein one or more of the closure profiles includes a textured portion along the length of each profile to provide tactile and/or audible sensations when the closure mechanism is occluded.
  • 13. The pouch of claim 11, wherein at least one of the pouch sidewalls comprises air channels in fluid communication with the valve.
  • 14. The pouch of claim 11, wherein at least one or more of the first and second pouch sidewalls comprises a barrier layer.
  • 15. The pouch of claim 14, wherein the barrier layer comprises EVOH.
  • 16. An airtight sealing section for a closure mechanism, comprising: first and second sealing sections disposed on respective complementary sides of first and second closure elements, the first sealing section comprising a first protuberance having a first distal surface, a second protuberance having a second distal surface, and a sealing flange attached to and extending across from the first and second distal surfaces of the first and second protuberances, respectively, and the second sealing section comprising a sealing member disposed on the second closure element and located on a base of the second closure element so as to urge against the sealing flange attached to and extending across from the first and second protuberances when the first and second closure elements are occluded to form an airtight seal therebetween.
  • 17. The airtight sealing section of claim 16, wherein the sealing flange comprises the first pouch sidewall.
  • 18. The airtight sealing section of claim 16, wherein the sealing flange comprises a slit disposed therein to allow penetration of the sealing member into a space between the first protuberance and the second protuberance when the first and second closure elements are occluded.
  • 19. The airtight sealing section of claim 16, wherein at least one of the first or second closure elements are attached to an exterior side of a pouch wall.
  • 20. The airtight sealing section of claim 16, wherein the sealing flange comprises at least one of an elastomer or polyolefin plastomer layer.
US Referenced Citations (883)
Number Name Date Kind
2576322 Waters Nov 1951 A
2609314 Engel et al. Sep 1952 A
2633442 Caldwell Mar 1953 A
2642372 Chittick Jun 1953 A
2670501 Michiels Mar 1954 A
2759866 Seymour Aug 1956 A
2772712 Post Dec 1956 A
2776452 Chavannes Jan 1957 A
2778171 Taunton Jan 1957 A
2778173 Taunton Jan 1957 A
2821338 Metzger Jan 1958 A
2856323 Gordon Oct 1958 A
2858247 De Swart Oct 1958 A
2870954 Kulesza Jan 1959 A
2913030 Fisher Nov 1959 A
2916411 Villoresi Dec 1959 A
2927722 Metzger Mar 1960 A
2960144 Graf Nov 1960 A
3026231 Chavannes Mar 1962 A
3060985 Vance et al. Oct 1962 A
3077428 Heuser et al. Feb 1963 A
3098563 Skees Jul 1963 A
3102676 Danelli et al. Sep 1963 A
3113715 Pangrac Dec 1963 A
3141221 Faulls, Jr. Jul 1964 A
3142599 Chavannes Jul 1964 A
3149772 Olsson Sep 1964 A
3160323 Weisberg Dec 1964 A
3164186 Weber et al. Jan 1965 A
3216172 Piazze Nov 1965 A
3219084 Ausnit et al. Nov 1965 A
3224574 McConnell Dec 1965 A
3237844 Hughes Mar 1966 A
3251463 Bodet May 1966 A
3302859 Perry Feb 1967 A
3325084 Ausnit Jun 1967 A
3372442 Ishimatsu Mar 1968 A
3381887 Lowry May 1968 A
3389733 Siegel Jun 1968 A
3411698 Reynolds Nov 1968 A
3423231 Lutzmann Jan 1969 A
3440696 Staller Apr 1969 A
3464094 Mates Sep 1969 A
3516217 Gildersleeve Jun 1970 A
3557413 Engle Jan 1971 A
3565147 Ausnit Feb 1971 A
3575781 Pezely Apr 1971 A
3595467 Goglio Jul 1971 A
3595722 Dawbarn Jul 1971 A
3595740 Gerow Jul 1971 A
3600267 McFedries, Jr. et al. Aug 1971 A
3608439 Ausnit Sep 1971 A
3628720 Schmedding Dec 1971 A
3633642 Siegel Jan 1972 A
3655501 Tesch Apr 1972 A
3661677 Wang May 1972 A
3679511 Ausnit Jul 1972 A
3746215 Ausnit et al. Jul 1973 A
3762404 Sakita Oct 1973 A
3780781 Uramoto Dec 1973 A
3790992 Herz Feb 1974 A
3799427 Goglio Mar 1974 A
3809217 Harrison May 1974 A
3833166 Murray Sep 1974 A
3908070 Marzolf Sep 1975 A
3918131 Ausnit Nov 1975 A
3937396 Schneider Feb 1976 A
3980226 Franz Sep 1976 A
3989182 Stearley Nov 1976 A
4000846 Gilbert Jan 1977 A
4020884 Jadot May 1977 A
4085886 Nishioka Apr 1978 A
4101355 Ausnit Jul 1978 A
4104404 Bieler et al. Aug 1978 A
4105491 Haase et al. Aug 1978 A
4122993 Glas Oct 1978 A
4134535 Barthels et al. Jan 1979 A
4155453 Ono May 1979 A
4186786 Kirkpatrick Feb 1980 A
4206870 DeVries Jun 1980 A
4212337 Kamp Jul 1980 A
4215725 Callet et al. Aug 1980 A
4246288 Sanborn, Jr. Jan 1981 A
4267960 Lind et al. May 1981 A
4310118 Kisida et al. Jan 1982 A
4332344 Strodthoff Jun 1982 A
4340558 Hendrickson Jul 1982 A
4354541 Tilman Oct 1982 A
4355494 Tilman Oct 1982 A
4363345 Scheibner Dec 1982 A
4364989 Moyle Dec 1982 A
4370187 Katagiri et al. Jan 1983 A
4372921 Sanderson et al. Feb 1983 A
4426816 Dean et al. Jan 1984 A
4430070 Ausnit Feb 1984 A
4449243 Platel May 1984 A
4470153 Kenan Sep 1984 A
4491959 Loefberg Jan 1985 A
4509642 Rowell Apr 1985 A
4524460 Twiehoff et al. Jun 1985 A
4528224 Ausnit Jul 1985 A
4532652 Herrington Jul 1985 A
4541117 Ashbeck Sep 1985 A
4550546 Raley et al. Nov 1985 A
4551379 Kerr Nov 1985 A
4566131 Achelpohl Jan 1986 A
4569712 Shibano et al. Feb 1986 A
4576283 Fafournoux Mar 1986 A
4576285 Goglio Mar 1986 A
4578813 Ausnit Mar 1986 A
4579784 Lemstra et al. Apr 1986 A
4581764 Plock et al. Apr 1986 A
4612221 Biel et al. Sep 1986 A
4653661 Buchner et al. Mar 1987 A
4658434 Murray Apr 1987 A
4660355 Kristen Apr 1987 A
4672684 Barnes et al. Jun 1987 A
4683702 Vis Aug 1987 A
4691372 Van Erden Sep 1987 A
4691373 Ausnit Sep 1987 A
4701358 Behr et al. Oct 1987 A
4702376 Pagliaro Oct 1987 A
4703518 Ausnit Oct 1987 A
4705174 Goglio Nov 1987 A
4712574 Perrott Dec 1987 A
4715494 Heitzenröder et al. Dec 1987 A
4730635 Linden Mar 1988 A
4731911 Gould Mar 1988 A
4736450 Van Erden et al. Apr 1988 A
4736451 Ausnit Apr 1988 A
4747702 Scheibner May 1988 A
4752992 Kondo et al. Jun 1988 A
4756628 Branson Jul 1988 A
4756629 Tilman et al. Jul 1988 A
4778282 Borchardt et al. Oct 1988 A
4780937 Kusayama Nov 1988 A
4782951 Griesbach et al. Nov 1988 A
4784885 Carespodi Nov 1988 A
4787754 Herrington Nov 1988 A
4787755 Branson Nov 1988 A
4787880 Ausnit Nov 1988 A
4791710 Nocek et al. Dec 1988 A
4792240 Ausnit Dec 1988 A
4795269 Scheibner Jan 1989 A
4796300 Branson Jan 1989 A
4807300 Ausnit et al. Feb 1989 A
4812056 Zieke Mar 1989 A
4812074 Ausnit et al. Mar 1989 A
4817188 Van Erden Mar 1989 A
4825514 Akeno May 1989 A
4829641 Williams May 1989 A
4832505 Ausnit et al. May 1989 A
4834554 Stetler, Jr. et al. May 1989 A
4840611 Van Erden et al. Jun 1989 A
4841603 Ragni Jun 1989 A
4858286 Siegel Aug 1989 A
4859259 Scheibner Aug 1989 A
4863286 Branson Sep 1989 A
4869725 Schneider et al. Sep 1989 A
4875259 Appeldorn Oct 1989 A
4877334 Cope Oct 1989 A
4878763 Ausnit Nov 1989 A
4890637 Lamparter Jan 1990 A
4890935 Ausnit et al. Jan 1990 A
4892414 Ausnit Jan 1990 A
4892512 Branson Jan 1990 A
4896775 Boeckmann et al. Jan 1990 A
4903718 Sullivan Feb 1990 A
4907321 Williams Mar 1990 A
4909017 McMahon et al. Mar 1990 A
4911960 Mudge et al. Mar 1990 A
4923701 VanErden May 1990 A
4925318 Sorenson May 1990 A
4928829 Di Bernardo May 1990 A
4929487 Tilman et al. May 1990 A
4930904 Gröner et al. Jun 1990 A
4937139 Genske et al. Jun 1990 A
4947525 Van Erden Aug 1990 A
4949527 Boeckmann et al. Aug 1990 A
4953708 Beer et al. Sep 1990 A
4961944 Matoba et al. Oct 1990 A
4964739 Branson et al. Oct 1990 A
4965108 Biel et al. Oct 1990 A
4966470 Thompson et al. Oct 1990 A
4971845 Aaker et al. Nov 1990 A
4985192 Roeder et al. Jan 1991 A
5007143 Herrington Apr 1991 A
5009318 Lepinoy Apr 1991 A
5012561 Porchia et al. May 1991 A
5017021 Simonsen et al. May 1991 A
5022530 Zieke Jun 1991 A
RE33674 Uramoto Aug 1991 E
5037138 McClintock et al. Aug 1991 A
5041316 Parnell et al. Aug 1991 A
5044774 Bullard et al. Sep 1991 A
5053091 Giljam et al. Oct 1991 A
5056933 Kamp Oct 1991 A
5059036 Richison et al. Oct 1991 A
5067208 Herrington, Jr. et al. Nov 1991 A
5067822 Wirth et al. Nov 1991 A
5069962 Okazaki et al. Dec 1991 A
5070584 Dais et al. Dec 1991 A
5088162 Allan Feb 1992 A
5088971 Herrington Feb 1992 A
5092684 Weeks Mar 1992 A
5093164 Bauer et al. Mar 1992 A
5093188 Dohrer Mar 1992 A
5119531 Berger et al. Jun 1992 A
5120586 Nedzu et al. Jun 1992 A
5134001 Osgood Jul 1992 A
5140727 Dais et al. Aug 1992 A
5140796 Pope Aug 1992 A
5141577 Porchia et al. Aug 1992 A
5142970 ErkenBrack Sep 1992 A
5167454 Woods et al. Dec 1992 A
5168586 Small Dec 1992 A
5170990 Kamiya et al. Dec 1992 A
5174658 Cook et al. Dec 1992 A
5177332 Fong Jan 1993 A
5179767 Allan Jan 1993 A
5186543 Cochran Feb 1993 A
5188461 Sorenson Feb 1993 A
5189764 Herrington et al. Mar 1993 A
5192135 Woods et al. Mar 1993 A
5198055 Wirth et al. Mar 1993 A
5203458 Cornwell Apr 1993 A
5208096 Dohrer May 1993 A
5209264 Koyanagi May 1993 A
5209574 Tilman May 1993 A
5209972 Super et al. May 1993 A
5211481 Tilman May 1993 A
5212855 McGanty May 1993 A
5216787 Custer et al. Jun 1993 A
5228271 Wallace Jul 1993 A
5235731 Anzai et al. Aug 1993 A
5236749 Ewing Aug 1993 A
5238306 Heintz et al. Aug 1993 A
5240112 Newburger Aug 1993 A
5242516 Custer et al. Sep 1993 A
5242757 Buisine et al. Sep 1993 A
5246114 Underwood Sep 1993 A
5248201 Kettner et al. Sep 1993 A
5252281 Kettner et al. Oct 1993 A
5252379 Kuribayashi et al. Oct 1993 A
5254073 Richison et al. Oct 1993 A
5263777 Domke Nov 1993 A
RE34477 Cornwell Dec 1993 E
5272794 Hamatani et al. Dec 1993 A
5283932 Richardson et al. Feb 1994 A
RE34554 Ausnit Mar 1994 E
5293672 Tominaga et al. Mar 1994 A
5300354 Harita et al. Apr 1994 A
5301394 Richardson et al. Apr 1994 A
5301395 Richardson et al. Apr 1994 A
5308666 Borchardt May 1994 A
5320889 Bettle, III Jun 1994 A
5324572 Kuechler et al. Jun 1994 A
5326176 Domke Jul 1994 A
5332095 Wu Jul 1994 A
5333736 Kawamura Aug 1994 A
5339602 Landers et al. Aug 1994 A
5339959 Cornwell Aug 1994 A
5342684 Carespodi Aug 1994 A
5346312 Mabry et al. Sep 1994 A
5351369 Swain Oct 1994 A
5351828 Becker et al. Oct 1994 A
5354133 Rapparini Oct 1994 A
5356222 Kettner et al. Oct 1994 A
5360670 Yonezu et al. Nov 1994 A
5362351 Karszes Nov 1994 A
5366294 Wirth et al. Nov 1994 A
5368394 Scott et al. Nov 1994 A
5369847 Naya et al. Dec 1994 A
5371925 Sawatsky Dec 1994 A
5376392 Ikegami et al. Dec 1994 A
5382470 Vicik Jan 1995 A
5384942 Siegel Jan 1995 A
5388910 Koyanagi Feb 1995 A
5397182 Gaible et al. Mar 1995 A
5399022 Sheets Mar 1995 A
5403094 Tomic Apr 1995 A
5407087 Giblin et al. Apr 1995 A
RE34929 Kristen May 1995 E
5415904 Takubo et al. May 1995 A
5417035 English May 1995 A
5417495 Branson May 1995 A
5419638 Jamison May 1995 A
5435864 Machacek et al. Jul 1995 A
5443851 Christie et al. Aug 1995 A
5445870 Buchner et al. Aug 1995 A
5448807 Herrington, Jr. Sep 1995 A
5450963 Carson Sep 1995 A
5456979 Schirmer Oct 1995 A
5462473 Sheller Oct 1995 A
5469966 Boyer Nov 1995 A
5474818 Ulrich et al. Dec 1995 A
5480030 Sweeney et al. Jan 1996 A
5492241 Barnett et al. Feb 1996 A
5494165 Detrick Feb 1996 A
5509734 Ausnit Apr 1996 A
5511884 Bruno et al. Apr 1996 A
5520463 Tilman May 1996 A
5523236 Nuzzo Jun 1996 A
5525363 Herber et al. Jun 1996 A
5526843 Wolf et al. Jun 1996 A
5540500 Tanaka Jul 1996 A
5540557 Carson Jul 1996 A
5542902 Richison et al. Aug 1996 A
5544752 Cox Aug 1996 A
5545419 Brady et al. Aug 1996 A
5549944 Abate Aug 1996 A
5551127 May Sep 1996 A
5553942 Domke et al. Sep 1996 A
5554423 Abate Sep 1996 A
5558439 Tilman Sep 1996 A
5558613 Tilman et al. Sep 1996 A
5566429 Martinez et al. Oct 1996 A
5567533 Toney et al. Oct 1996 A
5573614 Tilman et al. Nov 1996 A
5577305 Johnson Nov 1996 A
5584409 Chemberlen Dec 1996 A
5587192 Beizermann Dec 1996 A
5588187 Swain Dec 1996 A
5592697 Young Jan 1997 A
5603995 Takubo et al. Feb 1997 A
5609420 Palmisano Mar 1997 A
5618111 Porchia et al. Apr 1997 A
5622431 Simonsen Apr 1997 A
5628566 Schreiter May 1997 A
5638971 Justesen Jun 1997 A
RE35567 Newsome Jul 1997 E
5653251 Handler Aug 1997 A
5655273 Tomic et al. Aug 1997 A
5655842 Hagino Aug 1997 A
5660479 May et al. Aug 1997 A
5664303 Johnson Sep 1997 A
5669715 Dobreski et al. Sep 1997 A
5672009 Malin Sep 1997 A
5689866 Kasai et al. Nov 1997 A
5693283 Fehn Dec 1997 A
5699838 Catallo et al. Dec 1997 A
5700091 Tanaka et al. Dec 1997 A
5701996 Goto et al. Dec 1997 A
5709479 Bell Jan 1998 A
5709915 Tomic et al. Jan 1998 A
5713669 Thomas et al. Feb 1998 A
5718024 Robbins Feb 1998 A
5729876 Johnson Mar 1998 A
5730919 Wilfong et al. Mar 1998 A
5733619 Patel et al. Mar 1998 A
5735317 Wu Apr 1998 A
5735395 Lo Apr 1998 A
5749493 Boone et al. May 1998 A
5749658 Kettner May 1998 A
5753895 Olson et al. May 1998 A
5769772 Wiley Jun 1998 A
5770287 Miranda et al. Jun 1998 A
5774954 Ramsey et al. Jul 1998 A
5775812 St. Phillips et al. Jul 1998 A
5782562 Anspacher Jul 1998 A
5782733 Yeager Jul 1998 A
5784862 Germano Jul 1998 A
5786010 Yannuzzi, Jr. Jul 1998 A
5791783 Porchia et al. Aug 1998 A
5794315 Crabtree et al. Aug 1998 A
5804265 Saad et al. Sep 1998 A
5827163 Kettner Oct 1998 A
5829884 Yeager Nov 1998 A
5830545 Frisk Nov 1998 A
5833791 Bryniarski et al. Nov 1998 A
5839582 Strong et al. Nov 1998 A
5839831 Mazzocchi Nov 1998 A
5839832 Hagino Nov 1998 A
5843578 Sasaki et al. Dec 1998 A
5855498 Spector Jan 1999 A
5871281 Stolmeier et al. Feb 1999 A
5871790 Monier et al. Feb 1999 A
5874155 Gehrke et al. Feb 1999 A
5875611 Plourde Mar 1999 A
5881881 Carrington Mar 1999 A
5882120 Bell Mar 1999 A
5893461 Walters Apr 1999 A
5893645 May Apr 1999 A
5894929 Kai et al. Apr 1999 A
5898113 Vecere Apr 1999 A
5902046 Shibata May 1999 A
5902047 Yeager May 1999 A
5911508 Dobreski et al. Jun 1999 A
5915596 Credle, Jr. Jun 1999 A
5919535 Dobreski et al. Jul 1999 A
5919547 Kocher et al. Jul 1999 A
5924173 Dobreski et al. Jul 1999 A
5924795 Thompson et al. Jul 1999 A
5927336 Tanaka et al. Jul 1999 A
5927855 Tomic et al. Jul 1999 A
5928762 Aizawa et al. Jul 1999 A
5930877 Thorpe et al. Aug 1999 A
5931189 Sweeney et al. Aug 1999 A
5931582 Nichols Aug 1999 A
5933927 Miller et al. Aug 1999 A
5941421 Overman et al. Aug 1999 A
5941643 Linkiewicz Aug 1999 A
5944425 Forman Aug 1999 A
5947603 Tilman Sep 1999 A
5951453 Yeager Sep 1999 A
5953796 McMahon et al. Sep 1999 A
5954196 Lin Sep 1999 A
5954433 Yeager Sep 1999 A
5956815 O'Connor et al. Sep 1999 A
5964532 St. Phillips et al. Oct 1999 A
5965224 Chen et al. Oct 1999 A
5967664 Giles et al. Oct 1999 A
5971613 Bell Oct 1999 A
5981028 Sugawa et al. Nov 1999 A
5983466 Petkovsek Nov 1999 A
5985391 Denehy et al. Nov 1999 A
5988426 Stern Nov 1999 A
5988880 Tomic Nov 1999 A
5989608 Mizuno Nov 1999 A
5992442 Urquhart et al. Nov 1999 A
5992635 Walters Nov 1999 A
5996800 Pratt Dec 1999 A
6004032 Kapperman et al. Dec 1999 A
6009603 Gallagher Jan 2000 A
6010244 Dobreski et al. Jan 2000 A
6012264 Linkiewicz Jan 2000 A
6014795 McMahon et al. Jan 2000 A
6017412 Van Erden et al. Jan 2000 A
6019512 Yeager Feb 2000 A
6021624 Richison et al. Feb 2000 A
6023914 Richison et al. Feb 2000 A
6029810 Chen Feb 2000 A
6030122 Ramsey et al. Feb 2000 A
6033113 Anderson Mar 2000 A
6033114 Grimm et al. Mar 2000 A
6039182 Light Mar 2000 A
6044621 Malin et al. Apr 2000 A
6045264 Miniea Apr 2000 A
6045546 Drago et al. Apr 2000 A
6045648 Palmgren et al. Apr 2000 A
6047450 Machacek et al. Apr 2000 A
6056439 Graham May 2000 A
6059456 May May 2000 A
6059457 Spreche et al. May 2000 A
6068898 Oyama May 2000 A
6070397 Bachhuber Jun 2000 A
6070728 Overby et al. Jun 2000 A
6071011 Thomas et al. Jun 2000 A
6071626 Frisk Jun 2000 A
6074096 Tilman Jun 2000 A
6076967 Beaudette Jun 2000 A
6077578 Valyi Jun 2000 A
6080252 Plourde Jun 2000 A
6082897 Galomb Jul 2000 A
6083584 Smith et al. Jul 2000 A
6085906 Lambert Jul 2000 A
6085922 Esser Jul 2000 A
6092931 Tilman Jul 2000 A
6103050 Krueger Aug 2000 A
6110090 Ausnit Aug 2000 A
6110586 Johnson Aug 2000 A
6112374 Van Erden Sep 2000 A
6116781 Skeens Sep 2000 A
6117505 Weiss et al. Sep 2000 A
6120817 Archibald et al. Sep 2000 A
6126013 Miller Oct 2000 A
6126975 Archibald et al. Oct 2000 A
6132089 Galomb et al. Oct 2000 A
6138329 Johnson Oct 2000 A
6146764 Suokas et al. Nov 2000 A
6148588 Thomas et al. Nov 2000 A
6149302 Taheri Nov 2000 A
6149304 Hamilton et al. Nov 2000 A
6152601 Johnson Nov 2000 A
6156363 Chen et al. Dec 2000 A
6164825 Larkin et al. Dec 2000 A
6167597 Malin Jan 2001 B1
6170985 Shabram, Jr. et al. Jan 2001 B1
6176613 Chen Jan 2001 B1
6177172 Yeager Jan 2001 B1
6178602 Burke et al. Jan 2001 B1
6182337 Machacek et al. Feb 2001 B1
6182850 Marbler et al. Feb 2001 B1
6185796 Ausnit Feb 2001 B1
6194011 Glaser Feb 2001 B1
6194043 Fehn Feb 2001 B1
6202849 Graham Mar 2001 B1
6203867 Derkach et al. Mar 2001 B1
6203915 Prissok et al. Mar 2001 B1
6209287 Thieman Apr 2001 B1
6217216 Taheri Apr 2001 B1
6218024 Tamber et al. Apr 2001 B1
6220754 Stiglic et al. Apr 2001 B1
6224262 Hogan et al. May 2001 B1
6227706 Tran May 2001 B1
6231236 Tilman May 2001 B1
6231975 Kong et al. May 2001 B1
6234676 Galomb et al. May 2001 B1
6240941 Small et al. Jun 2001 B1
6244021 Ausnit et al. Jun 2001 B1
6244748 Kasai et al. Jun 2001 B1
6248442 Kong et al. Jun 2001 B1
6257763 Stolmeier et al. Jul 2001 B1
6270257 Yeager Aug 2001 B1
6270950 Bourdelais et al. Aug 2001 B1
6273609 Johnson Aug 2001 B1
6274181 Richison et al. Aug 2001 B1
6279298 Thomas et al. Aug 2001 B1
6279745 Huynen et al. Aug 2001 B1
6286191 Van Erden Sep 2001 B2
6286999 Cappel et al. Sep 2001 B1
6287001 Buchman Sep 2001 B1
6289561 Provan et al. Sep 2001 B1
6290391 Buchman Sep 2001 B1
6290392 Sandor Sep 2001 B1
6292986 Provan et al. Sep 2001 B1
6293701 Tomic Sep 2001 B1
6294264 Piper et al. Sep 2001 B1
6299353 Piechocki et al. Oct 2001 B1
6299720 Van Erden Oct 2001 B1
6303199 Takada et al. Oct 2001 B1
6306472 Buelow Oct 2001 B1
6316114 Comer et al. Nov 2001 B1
6317939 Malin Nov 2001 B1
6321423 Johnson Nov 2001 B1
6334711 Risgalla et al. Jan 2002 B1
6344258 Rasmussen Feb 2002 B1
6345911 Young et al. Feb 2002 B1
6347437 Provan et al. Feb 2002 B2
6354738 Buckman et al. Mar 2002 B1
6355336 Wakabayashi et al. Mar 2002 B1
6357915 Anderson Mar 2002 B2
6361209 LaRue et al. Mar 2002 B1
6361211 Tilman Mar 2002 B1
6361212 Sprehe et al. Mar 2002 B1
6361843 Smith et al. Mar 2002 B1
6364530 Buchman Apr 2002 B1
6371643 Saad et al. Apr 2002 B2
6371644 Forman Apr 2002 B1
6372359 Hayashi et al. Apr 2002 B1
6374855 Hansen Apr 2002 B1
6376035 Dobreski et al. Apr 2002 B1
6378272 Archibald et al. Apr 2002 B1
6385818 Savicki, Sr. May 2002 B1
6386760 Tomic May 2002 B1
6390676 Colombo et al. May 2002 B1
6391404 Rosenbaum et al. May 2002 B1
6402375 Schreiter et al. Jun 2002 B1
6403174 Copeta Jun 2002 B1
6408872 Skeens et al. Jun 2002 B1
6413597 Hirai Jul 2002 B1
6439771 Herrington, Jr. Aug 2002 B1
6450686 May Sep 2002 B1
6451426 Kong et al. Sep 2002 B2
6461042 Tomic et al. Oct 2002 B1
6468332 Goglio et al. Oct 2002 B2
6479115 Fehn Nov 2002 B2
6481889 Delsahut Nov 2002 B2
6481890 VandenHeuvel Nov 2002 B1
6487758 Shaffer et al. Dec 2002 B2
6489022 Hamilton et al. Dec 2002 B1
6491166 Compton et al. Dec 2002 B1
6491433 Shabram, Jr. et al. Dec 2002 B2
6499878 Dobreski et al. Dec 2002 B1
6499879 Schneck Dec 2002 B2
6500505 Piper et al. Dec 2002 B2
6503588 Hayashi et al. Jan 2003 B1
6505383 Machacek et al. Jan 2003 B2
6506464 Montenieri et al. Jan 2003 B1
6513659 Ogura et al. Feb 2003 B1
6517242 Buchman Feb 2003 B1
6521312 Keiser Feb 2003 B1
6524002 Tomic Feb 2003 B2
6526632 Blythe et al. Mar 2003 B1
6527003 Webster Mar 2003 B1
6527444 Buchman Mar 2003 B1
6530870 Buchman et al. Mar 2003 B2
6533456 Buchman Mar 2003 B1
D473761 Wilk et al. Apr 2003 S
6539594 Kasai et al. Apr 2003 B1
6550965 Shaffer et al. Apr 2003 B2
6568046 Savicki et al. May 2003 B1
6571430 Savicki et al. Jun 2003 B1
6572267 Forman Jun 2003 B1
6575191 Skeens et al. Jun 2003 B2
6576329 Kong Jun 2003 B2
6576348 Eggers et al. Jun 2003 B2
6579584 Compton Jun 2003 B1
6579621 Shah Jun 2003 B1
6581253 ErkenBrack Jun 2003 B2
6581641 Skeens et al. Jun 2003 B2
6595689 Borchardt et al. Jul 2003 B1
D478774 Wilk et al. Aug 2003 S
6602580 Hamilton et al. Aug 2003 B1
6602590 Ting et al. Aug 2003 B2
6604634 Su Aug 2003 B2
6609353 McMahon et al. Aug 2003 B1
6609827 Bois et al. Aug 2003 B2
6611996 Blythe et al. Sep 2003 B2
6620474 Regnier et al. Sep 2003 B1
6622857 Ohtsubo et al. Sep 2003 B2
6623866 Migliorini et al. Sep 2003 B2
6632021 Bois et al. Oct 2003 B2
6634384 Skeens et al. Oct 2003 B2
6637939 Huffer Oct 2003 B2
6656548 Beckwith et al. Dec 2003 B1
6659643 Plourde et al. Dec 2003 B2
6662827 Clougherty et al. Dec 2003 B1
6663284 Buckingham et al. Dec 2003 B2
6663947 Freedman et al. Dec 2003 B2
6666580 Bois Dec 2003 B2
6667083 Hayashi et al. Dec 2003 B2
6675982 Heil et al. Jan 2004 B2
6679027 Schreiter Jan 2004 B2
6680104 Boris et al. Jan 2004 B2
6682792 Schmal et al. Jan 2004 B2
6691383 Linton Feb 2004 B2
6692147 Nelson Feb 2004 B2
6694704 Ausnit Feb 2004 B1
6698925 Bentsen Mar 2004 B2
6706377 Peet Mar 2004 B2
6712334 Motonaka et al. Mar 2004 B2
6712509 Cappel Mar 2004 B2
6713152 Chen et al. Mar 2004 B2
6715644 Wilford Apr 2004 B2
6721999 Meager Apr 2004 B2
6729473 Anderson May 2004 B2
6739755 Schreiter May 2004 B2
6753370 Nakatsukasa et al. Jun 2004 B2
6755568 Malone et al. Jun 2004 B2
6767131 Taheri Jul 2004 B2
6773163 Ichikawa et al. Aug 2004 B2
6777089 Königer et al. Aug 2004 B1
6780146 Thomas et al. Aug 2004 B2
6786641 Plourde Sep 2004 B2
6789690 Nieh et al. Sep 2004 B2
6794021 Bader Sep 2004 B2
6796933 Bois Sep 2004 B2
6799680 Mak Oct 2004 B2
6799890 Schneider et al. Oct 2004 B2
6810642 Cortigiano, Sr. Nov 2004 B2
6817763 Tomic Nov 2004 B2
6821589 Dobreski et al. Nov 2004 B2
6824885 Fitch et al. Nov 2004 B2
6826808 Kutschka Dec 2004 B2
6827105 Marble et al. Dec 2004 B1
6827492 Cook Dec 2004 B2
6830377 Schneider Dec 2004 B2
6833170 Knoerzer et al. Dec 2004 B1
6835257 Perrine Dec 2004 B2
6837268 Skeens et al. Jan 2005 B2
6845598 Melchoir Jan 2005 B1
6846107 Sweeney et al. Jan 2005 B2
6846532 Bensur Jan 2005 B1
6846551 Genske et al. Jan 2005 B2
RE38694 Nelson Feb 2005 E
6851248 Knight et al. Feb 2005 B2
6854886 Piechocki et al. Feb 2005 B2
6862980 Heil et al. Mar 2005 B2
6872458 Rudd et al. Mar 2005 B1
6874935 Edelman et al. Apr 2005 B2
6874937 Ausnit Apr 2005 B2
6874938 Price et al. Apr 2005 B2
6877898 Berich et al. Apr 2005 B2
6883665 Ahn Apr 2005 B1
6884207 Pokusa Apr 2005 B2
6884483 Hayashi et al. Apr 2005 B2
6901637 Machacek Jun 2005 B2
6902795 Ishii et al. Jun 2005 B1
6910805 Johnson Jun 2005 B2
6910806 Strand et al. Jun 2005 B2
6913387 Strand et al. Jul 2005 B2
6925688 Savicki Aug 2005 B1
6932509 Shah et al. Aug 2005 B2
6939597 Winget et al. Sep 2005 B2
6945392 Furukawa et al. Sep 2005 B2
6946176 Jousse et al. Sep 2005 B2
6954969 Sprehe Oct 2005 B1
6955465 Machacek et al. Oct 2005 B2
6957915 Tankersley Oct 2005 B2
6960374 Terada et al. Nov 2005 B1
6964519 ErkenBrack Nov 2005 B2
6974256 Kinigakis et al. Dec 2005 B2
6976669 Van Zijll Langhout et al. Dec 2005 B2
6979495 Keung et al. Dec 2005 B2
6983845 Shah et al. Jan 2006 B2
6984278 Anderson et al. Jan 2006 B2
6988828 Linneweil Jan 2006 B2
6991109 Shannon et al. Jan 2006 B1
6993886 Johnson Feb 2006 B2
6996879 Savicki Feb 2006 B1
7001659 Iriyama Feb 2006 B2
7004209 Davis et al. Feb 2006 B2
7004632 Hamilton et al. Feb 2006 B2
7011615 Price et al. Mar 2006 B2
7022058 Lee Apr 2006 B2
7026417 Yang et al. Apr 2006 B2
7036988 Olechowski May 2006 B2
7048136 Havens et al. May 2006 B2
7051762 Haamer May 2006 B2
7077570 Fukumori et al. Jul 2006 B2
7077923 Lin Jul 2006 B2
7087130 Wu et al. Aug 2006 B2
7087277 Yang et al. Aug 2006 B2
7090397 Stolmeier Aug 2006 B2
7090398 Shibata Aug 2006 B2
7096893 Vilalta et al. Aug 2006 B2
7097359 Plourde et al. Aug 2006 B2
7108147 Cheung Sep 2006 B2
7131550 Vilalta et al. Nov 2006 B2
7138025 Wu et al. Nov 2006 B2
7144615 Peiffer et al. Dec 2006 B2
7157126 Cosentino et al. Jan 2007 B2
7162779 MacHacek Jan 2007 B2
7163338 McCracken et al. Jan 2007 B2
7178555 Engel et al. Feb 2007 B2
7244223 Hartman et al. Jul 2007 B2
7377015 Long et al. May 2008 B2
7496992 Ausnit Mar 2009 B2
7784160 Dais et al. Aug 2010 B2
20010012550 Fehn Aug 2001 A1
20010031371 Kong et al. Oct 2001 A1
20010034999 Xiong et al. Nov 2001 A1
20010038897 Curie et al. Nov 2001 A1
20020012803 Kending Jan 2002 A1
20020022144 Yang et al. Feb 2002 A1
20020041964 Winget et al. Apr 2002 A1
20020090151 Skeens et al. Jul 2002 A1
20020097923 Dobreski et al. Jul 2002 A1
20020124471 Anderson et al. Sep 2002 A1
20020146551 Freedman et al. Oct 2002 A1
20020160167 Bader Oct 2002 A1
20020168118 Price Nov 2002 A1
20020168119 Herrington, Jr. Nov 2002 A1
20020168489 Ting et al. Nov 2002 A1
20020168512 Eggers et al. Nov 2002 A1
20020182390 Migliorini et al. Dec 2002 A1
20020187326 Kong Dec 2002 A1
20030012901 Bezek et al. Jan 2003 A1
20030016887 Su Jan 2003 A1
20030021925 Schmal et al. Jan 2003 A1
20030024847 Malaspina Feb 2003 A1
20030031387 Gipson et al. Feb 2003 A1
20030053722 Eggermont Mar 2003 A1
20030095727 Leighton May 2003 A1
20030102245 Wang Jun 2003 A1
20030116466 Goto Jun 2003 A1
20030118253 Machacek Jun 2003 A1
20030136798 Wilford Jul 2003 A1
20030169948 Fenzl et al. Sep 2003 A1
20030175457 Jousse et al. Sep 2003 A1
20030207061 Hayashi et al. Nov 2003 A1
20030219174 Piechocki Nov 2003 A1
20030219177 Salvaro Nov 2003 A1
20030219557 Denehy et al. Nov 2003 A1
20030223654 Gerrits Dec 2003 A1
20030235669 Yang et al. Dec 2003 A1
20040000336 Goglio Jan 2004 A1
20040000503 Shah et al. Jan 2004 A1
20040001651 Pawloski Jan 2004 A1
20040007494 Popeil et al. Jan 2004 A1
20040014579 Sweeney et al. Jan 2004 A1
20040022457 Brown et al. Feb 2004 A1
20040028856 Smith et al. Feb 2004 A1
20040040961 Vilalta et al. Mar 2004 A1
20040049896 Savicki Mar 2004 A1
20040050745 Lee et al. Mar 2004 A1
20040057636 Ishizaki Mar 2004 A1
20040058178 Yang et al. Mar 2004 A1
20040078939 Pawloski Apr 2004 A1
20040081375 Pokusa Apr 2004 A1
20040091185 Shibata May 2004 A1
20040091186 Shibata May 2004 A1
20040098845 Fukumori et al. May 2004 A1
20040105600 Floyd, Jr. Jun 2004 A1
20040114837 Koyanagi Jun 2004 A1
20040136617 Gerrits Jul 2004 A1
20040136618 Ausnit et al. Jul 2004 A1
20040136622 Shigeta et al. Jul 2004 A1
20040165794 Plourde et al. Aug 2004 A1
20040177595 Kozak Sep 2004 A1
20040191438 Cosentino et al. Sep 2004 A1
20040208400 Linneweil Oct 2004 A1
20040211698 Mak Oct 2004 A1
20040213967 Peiffer et al. Oct 2004 A1
20040223667 Shah et al. Nov 2004 A1
20040234170 Pawloski et al. Nov 2004 A1
20040252915 Nelson Dec 2004 A1
20040256050 Wu Dec 2004 A1
20050008266 Crunkleton et al. Jan 2005 A1
20050014011 Oya Jan 2005 A1
20050022472 Brakes et al. Feb 2005 A1
20050025394 Kinigakis et al. Feb 2005 A1
20050029704 Wu et al. Feb 2005 A1
20050034425 Johnson Feb 2005 A1
20050034806 Wu et al. Feb 2005 A1
20050034807 Wu et al. Feb 2005 A1
20050035020 Wu et al. Feb 2005 A1
20050036717 Wu et al. Feb 2005 A1
20050036718 Wu et al. Feb 2005 A1
20050036719 Wu et al. Feb 2005 A1
20050037164 Wu et al. Feb 2005 A1
20050042441 Peiffer et al. Feb 2005 A1
20050042468 Peiffer et al. Feb 2005 A1
20050061812 Vilalta et al. Mar 2005 A1
20050063620 Anderson Mar 2005 A1
20050065007 Wu et al. Mar 2005 A1
20050069229 McCracken et al. Mar 2005 A1
20050103798 Luigi May 2005 A1
20050123748 Paris Jun 2005 A1
20050135710 Melchoir Jun 2005 A1
20050147330 Lee Jul 2005 A1
20050172577 Oltrogge Aug 2005 A1
20050190995 Koyanagi Sep 2005 A1
20050196076 Tanaka et al. Sep 2005 A1
20050205455 Harrison Sep 2005 A1
20050208282 Wood et al. Sep 2005 A1
20050220373 Wu Oct 2005 A1
20050220374 Thomas et al. Oct 2005 A1
20050220376 Tsukanome et al. Oct 2005 A1
20050229365 Offa-Jones Oct 2005 A1
20050235468 Borchardt et al. Oct 2005 A1
20050238263 Ping Oct 2005 A1
20050244083 McMahon et al. Nov 2005 A1
20050245376 Savicki et al. Nov 2005 A1
20050251973 Sprehe Nov 2005 A1
20050259895 Kozak Nov 2005 A1
20050271308 Pawloski Dec 2005 A1
20050276524 Taheri Dec 2005 A1
20050281489 Yeh et al. Dec 2005 A1
20050281490 Schneider et al. Dec 2005 A1
20050281493 Heinemeier et al. Dec 2005 A1
20050281494 Allen et al. Dec 2005 A1
20050282695 Yeager Dec 2005 A1
20050286808 Zimmerman et al. Dec 2005 A1
20050286810 Sprague et al. Dec 2005 A1
20050286811 Sprague et al. Dec 2005 A1
20050286812 Sprague et al. Dec 2005 A1
20050286813 Borchardt Dec 2005 A1
20050286817 Hall et al. Dec 2005 A1
20060008185 Borchardt Jan 2006 A1
20060008187 Armstrong Jan 2006 A1
20060013514 Wu Jan 2006 A1
20060029299 Share et al. Feb 2006 A1
20060030472 Hartman et al. Feb 2006 A1
20060034551 Linneweil Feb 2006 A1
20060035046 Lee Feb 2006 A1
20060035777 Johnson Feb 2006 A1
20060048483 Tilman et al. Mar 2006 A1
20060050999 Blythe et al. Mar 2006 A1
20060053749 Scanlan Mar 2006 A1
20060072860 Wu Apr 2006 A1
20060073291 Wu Apr 2006 A1
20060076058 Rypstra Apr 2006 A1
20060093242 Anzini et al. May 2006 A1
20060104548 Schreiter May 2006 A1
20060105166 Lischefski et al. May 2006 A1
20060110079 Zimmerman et al. May 2006 A1
20060111226 Anzini et al. May 2006 A1
20060120632 Han Jun 2006 A1
20060120633 Goldenberg et al. Jun 2006 A1
20060131328 Anderson Jun 2006 A1
20060157140 Bergman et al. Jul 2006 A1
20060159372 Plourde et al. Jul 2006 A1
20060159576 Bergman et al. Jul 2006 A1
20060165316 Cheung Jul 2006 A1
20060172137 Champion Aug 2006 A1
20060177156 Owen et al. Aug 2006 A1
20060179620 MacHacek Aug 2006 A1
20060182371 Borchardt Aug 2006 A1
20060193540 Borchardt Aug 2006 A1
20060201576 Domenig Sep 2006 A1
20060225787 Newrones et al. Oct 2006 A1
20060228057 Newrones et al. Oct 2006 A1
20060251841 Yang et al. Nov 2006 A1
20060263497 Hoffman Nov 2006 A1
20060283148 Zimmermann et al. Dec 2006 A1
20060292322 Nakajima et al. Dec 2006 A1
20070090109 Gustavsson Apr 2007 A1
20070130733 Kasai Jun 2007 A1
20070154118 Tilman et al. Jul 2007 A1
20070172157 Buchman Jul 2007 A1
20070232473 Hartman et al. Oct 2007 A1
Foreign Referenced Citations (96)
Number Date Country
1315746 Apr 1993 CA
1 901 372 Sep 1964 DE
1 290 073 Feb 1969 DE
1 486 280 Apr 1969 DE
1 486 733 Jun 1969 DE
1 411 644 Jul 1969 DE
23 31 862 Jan 1975 DE
24 54 248 May 1976 DE
27 47 071 Apr 1979 DE
28 48 835 May 1980 DE
33 12 887 Oct 1984 DE
34 11 371 Oct 1985 DE
35 21 373 Dec 1986 DE
93 00 361 Jan 1994 DE
43 05 065 Aug 1994 DE
198 43 430 Feb 2000 DE
144 011 Jun 1985 EP
149 695 Jul 1985 EP
373 833 Jun 1990 EP
450 741 Oct 1991 EP
505 057 Sep 1992 EP
633 193 Jan 1995 EP
729 901 Sep 1996 EP
767 105 Apr 1997 EP
808 776 Nov 1997 EP
1 231 155 Aug 2002 EP
1 407 681 Apr 2004 EP
2 353 452 Jun 1976 FR
2 380 953 Feb 1978 FR
2 603 164 Mar 1988 FR
2 695 108 Mar 1994 FR
154244 Nov 1919 GB
961222 Jun 1964 GB
1016476 Jan 1966 GB
1046963 Oct 1966 GB
1121514 Jul 1968 GB
1548244 Jul 1979 GB
2028081 Mar 1980 GB
1583503 Jan 1981 GB
2237553 May 1991 GB
55-090364 Jul 1980 JP
57-21579 Feb 1982 JP
61-166960 Oct 1986 JP
62-99534 Jun 1987 JP
62-192779 Aug 1987 JP
63-6278 Jan 1988 JP
63-6279 Jan 1988 JP
63-203559 Aug 1988 JP
1-099925 Apr 1989 JP
1-279073 Nov 1989 JP
3-212355 Sep 1991 JP
4-13543 Feb 1992 JP
4-13544 Feb 1992 JP
4-60847 May 1992 JP
5-051039 Mar 1993 JP
5-124656 May 1993 JP
6-3846 Jan 1994 JP
6-99991 Apr 1994 JP
6-329179 Nov 1994 JP
7-839 Jan 1995 JP
8-011942 Jan 1996 JP
8-198274 Aug 1996 JP
2000226041 Aug 2000 JP
2000-281084 Oct 2000 JP
2001-173818 Jun 2001 JP
2001-233383 Aug 2001 JP
2001-247137 Sep 2001 JP
3294043 May 2002 JP
2002173154 Jun 2002 JP
2002-193273 Jul 2002 JP
2002-302164 Oct 2002 JP
2003-507264 Feb 2003 JP
2004-123228 Apr 2004 JP
2004-531435 Oct 2004 JP
2004-359292 Dec 2004 JP
2006044786 Feb 2006 JP
WO 8807479 Oct 1988 WO
WO 9857862 Dec 1998 WO
WO 0194227 Dec 2001 WO
WO 0214161 Feb 2002 WO
WO 0230772 Apr 2002 WO
WO 02074522 Sep 2002 WO
WO 03001096 Jan 2003 WO
WO 2004002840 Jan 2004 WO
WO 2004002841 Jan 2004 WO
WO 2004002850 Jan 2004 WO
WO 2004078590 Sep 2004 WO
WO 2004078591 Sep 2004 WO
WO 2004078609 Sep 2004 WO
WO 2004108556 Dec 2004 WO
WO 2004108557 Dec 2004 WO
WO 2005000706 Jan 2005 WO
WO 2005016774 Feb 2005 WO
WO 2005040005 May 2005 WO
WO 2006127739 Nov 2006 WO
WO 2007149656 Dec 2007 WO
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