The present invention relates generally to connectors for terminating coaxial cable. More particularly, the present invention relates to a coaxial cable connector having structural features to positively secure the connector to any F port regardless of the type of material, casting or plating specifications.
It has long been known to use connectors to terminate coaxial cable so as to connect a cable to various electronic devices such as televisions, radios and the like. Prior art coaxial connectors generally include a connector body having an annular collar for accommodating a coaxial cable, an annular nut rotatably coupled to the collar for providing mechanical attachment of the connector to an external device and an annular post interposed between the collar and the nut. A resilient sealing O-ring may also be positioned between the collar and the nut at the rotatable juncture thereof to provide a water resistant seal thereat. The collar includes a cable receiving end for insertably receiving an inserted coaxial cable and, at the opposite end of the connector body, the nut includes an internally threaded end extent permitting screw threaded attachment of the body to an external device.
This type of coaxial connector further typically includes a locking sleeve to secure the cable within the body of the coaxial connector. The locking sleeve, which is typically formed of a resilient plastic, is securable to the connector body to secure the coaxial connector thereto. In this regard, the connector body typically includes some form of structure to cooperatively engage the locking sleeve. Such structure may include one or more recesses or detents formed on an inner annular surface of the connector body, which engages cooperating structure formed on an outer surface of the sleeve. A coaxial cable connector of this type is shown and described in commonly owned U.S. Pat. No. 6,530,807.
Conventional coaxial cables typically include a center conductor surrounded by an insulator. A conductive foil is disposed over the insulator and a braided conductive shield surrounds the foil covered insulator. An outer insulative jacket surrounds the shield. In order to prepare the coaxial cable for termination, the outer jacket is stripped back exposing an extent of the braided conductive shield which is folded back over the jacket. A portion of the insulator covered by the conductive foil extends outwardly from the jacket and an extent of the center conductor extends outwardly from within the insulator.
Upon assembly, a coaxial cable is inserted into the cable receiving end of the connector body, wherein the annular post is forced between the foil covered insulator and the conductive shield of the cable. In this regard, the post is typically provided with a radially enlarged barb to facilitate expansion of the cable jacket. The locking sleeve is then moved axially into the connector body to clamp the cable jacket against the post barb providing both cable retention and a water-tight seal around the cable jacket. The connector can then be attached to an external device by tightening the internally threaded nut to an externally threaded terminal or port of the external device.
One problem with such prior art connectors is the connector's tendency over time to become disconnected from the external device to which it is connected. Specifically, the internally threaded nut for providing mechanical attachment of the connector to an external device has a tendency to back-off or loosen itself from the threaded port connection of the external device over time. Once the connector becomes sufficiently loosened, electrical connection between the coaxial cable and the external device is broken, resulting in a failed condition.
It is, therefore, desirable to provide a coaxial connector with structural features to enhance retaining of the connector nut to a threaded port of an external device and to minimize the nut's tendency to back-off or loosen itself from the port.
It is an object of the present invention to provide a coaxial cable connector for terminating a coaxial cable.
It is a further object of the present invention to provide a coaxial cable connector having structure to enhance retaining of the connector to any external device port regardless of the type of material, casting or plating specifications of the port.
In the efficient attainment of these and other objects, the present invention provides a coaxial cable connector. The connector of the present invention generally includes a connector body having a forward end and a rearward cable receiving end for receiving a cable and a nut rotatably coupled to the forward end of the connector body. The nut has an internal thread for engagement with an external thread of a mating connector. The internal thread of the nut and the external thread of the mating connector are mismatched, wherein an interference fit is created therebetween upon connection of the nut to the mating connector.
In a preferred embodiment, the internal thread of the nut is conically tapered over at least a portion of the thread length. In an alternative embodiment, the internal thread of the nut has a number of threads per unit length which is different than the number of threads per unit length provided on the external thread of the mating connector. In both embodiments, the coaxial cable connector further preferably includes an annular post disposed within the connector body and a biasing element acting between the post and the nut.
The present invention further involves a method for reducing the tendency of a coaxial cable connector to loosen itself from a device port. The method generally includes the steps of providing a device port with an external thread, providing a coaxial cable connector with a nut having an internal thread and connecting the connector nut with the device port by engaging the external thread of the port with the internal thread of the connector nut, wherein the internal thread of the nut and the external thread of the port are mismatched to create an interference fit therebetween.
The present invention further provides a coaxial cable connector including a connector body having a forward end and a rearward cable receiving end for receiving a cable, a nut rotatably coupled to the forward end of the connector body, an annular post disposed within the connector body and a biasing element acting between the post and the nut. The nut has an internally threaded surface for engagement with an external thread of a mating connector. The internally threaded surface has an axial length and the post has a forward flanged base portion disposed within the axial length of the internally threaded surface of the nut.
The nut preferably includes an internal radial flange having a forward facing wall and the flanged base portion of the post includes a rearward facing wall, wherein the forward facing wall of the nut radial flange and the rearward facing wall of the post flanged base portion define an annular chamber for receiving the biasing element. In a preferred embodiment, at least one thread of the nut threaded surface is disposed within the annular chamber rearward of the rearward facing wall of the post flanged base portion.
The post preferably includes a step formed on an outer surface thereof. The step engages a forward end of the connector body for positioning the post flanged base portion within the axial length of the internally threaded surface of the nut.
Also, the flanged base portion of the post preferably has a maximum outer diameter and the internally threaded surface of the nut has a minimal inner diameter. The maximum outer diameter of the post flanged base portion is smaller than the minimal inner diameter of the nut threaded surface, whereby the post flanged base portion is axially movable with respect to the internally threaded surface of the nut.
The present invention further involves a method for reducing the tendency of a coaxial cable connector to loosen itself from a device port. The method generally includes the step of connecting a connector nut, as described above, with a device port by rotating the nut in a first direction, thereby engaging an externally threaded surface of the port with the internally threaded surface of the connector nut, whereby a biasing element urges a forward facing wall of the post flanged base portion against a rearward facing wall of the port device, whereby the nut is permitted to rotate in a reverse direction up to three hundred sixty degrees before the forward facing wall of the post flanged base portion breaks contact with the rearward facing wall of the port device.
A preferred form of the coaxial connector, as well as other embodiments, objects, features and advantages of this invention, will be apparent from the following detailed description of illustrative embodiments thereof, which is to be read in conjunction with the accompanying drawings.
Referring first to
The connector body 12, also called a collar, is an elongate generally cylindrical member, which can be made from plastic or from metal or the like. The body 12 has a forward end 20 coupled to the post 16 and the nut 18 and an opposite cable receiving end 22 for insertably receiving the locking sleeve 14, as well as a prepared end of a coaxial cable in the forward direction as shown by arrow A. The cable receiving end 22 of the connector body 12 defines an inner sleeve engagement surface for coupling with the locking sleeve 14. The inner engagement surface is preferably formed with a groove or recess 24, which cooperates with mating detent structure 26 provided on the outer surface of the locking sleeve 14.
The locking sleeve 14 is a generally tubular member having a rearward cable receiving end 28 and an opposite forward connector insertion end 30, which is movably coupled to the inner surface of the connector body 12. As mentioned above, the outer cylindrical surface of the sleeve 14 includes a plurality of ridges or projections 26, which cooperate with the groove or recess 24 formed in the inner sleeve engagement surface of the connector body 12 to allow for the movable connection of the sleeve 14 to the connector body 12 such that the sleeve is lockingly axially moveable along arrow A toward the forward end 20 of the connector body from a first position, as shown for example in
The locking sleeve 14 further preferably includes a flanged head portion 32 disposed at the rearward cable receiving end 28 thereof. The head portion 32 has an outer diameter larger than the inner diameter of the body 12 and includes a forward facing perpendicular wall 34, which serves as an abutment surface against which the rearward end of the body 12 stops to prevent further insertion of the sleeve 14 into the body 12. A resilient, sealing O-ring 36 is preferably provided at the forward facing perpendicular wall 34 to provide a water-tight seal between the locking sleeve 14 and the connector body 12 upon insertion of the locking sleeve within the body.
As mentioned above, the connector 10 of the present invention further includes an annular post 16 coupled to the forward end 20 of the connector body 12. The annular post 16 includes a flanged base portion 38 at its forward end for securing the post within the annular nut 18 and an annular tubular extension 40 extending rearwardly within the body 12 and terminating adjacent the rearward end 22 of the connector body 12. The rearward end of the tubular extension 40 preferably includes a radially outwardly extending ramped flange portion or “barb” 42 to enhance compression of the outer jacket of the coaxial cable to secure the cable within the connector 10. The tubular extension 40 of the post 16, the locking sleeve 14 and the body 12 define an annular chamber 44 for accommodating the jacket and shield of the inserted coaxial cable.
The connector 10 of the present invention further includes a nut 18 rotatably coupled to the forward end 20 of the connector body 12. The nut 18 may be in any external form, such as that of a hex nut, a knurled nut, a wing nut, or any other known attaching means, and is rotatably coupled to the connector body 12 for providing mechanical attachment of the connector 10 to an external device. A resilient sealing O-ring 46 is preferably positioned in the nut 18 to provide a water resistant seal between the connector body 12, the post 16 and the nut 18.
The connector 10 of the present invention is constructed so as to be supplied in the assembled condition shown in the drawings, wherein the locking sleeve 14 is pre-installed inside the rearward cable receiving end 22 of the connector body 12. In such assembled condition, a coaxial cable may be inserted through the rearward cable receiving end 28 of the sleeve ring 14 to engage the post 16 of the connector 10. However, it is conceivable that the locking sleeve 14 can be first slipped over the end of a cable and then be inserted into the rearward end 22 of the connector body 12 together with the cable.
In either case, once the prepared end of a cable is inserted into the connector body 12 so that the cable jacket is separated from the insulator by the sharp edge of the annular post 16, the locking sleeve 14 is moved axially forward in the direction of arrow A from the first position to the second position shown in
Once the cable is secured, the connector 10 is ready for attachment to a port connector 48, such as an F-81 connector, of an external device. Attachment of a conventional prior art coaxial cable connector to a port connector is typically achieved by providing the connector nut with an internal thread, which cooperatively matches an external thread formed on the port connector. The present invention enhances retention force between the nut and the port connector by providing the nut with an internal thread that does not match the standard external thread formed on the post connector. In this manner, an interference fit is provided between the internal thread of the nut and the external thread of the port connector, which resists “backing-off” or loosening of the nut even under vibration. Moreover, the interference fit between the threads further provides a seal against water migration.
Specifically, in a preferred embodiment as shown in
However, in a preferred embodiment, the threaded surface 50 is formed with a straight forward portion 56, having threads with a constant pitch diameter, and a conically tapered rear portion 58, having threads with pitch diameters that successively decrease in the rearward direction, as shown in
The tapered rear portion 58 can have a taper angle α in the range of between ¼ and 5 degrees, as shown in
As can be seen in
Turning now to
In both embodiments described above, the connector 10 of the present invention further includes a biasing element 62 acting between the post 16 and the nut 18, 18a for biasing the flanged base portion 38 of the post against the end face of the port connector 48. In particular, an annular chamber 64 is provided at the rearward, innermost end of the nut threaded surface 50, in which the biasing element 62 is received. The annular chamber 64 is defined at its rearward extent by a forward facing wall 66 of an inward radial flange 67 of the nut 18 and the forward facing end 69 of the connector body 12. At its forward extent, the annular chamber 64 is defined by a rearward facing wall 68 of the flanged base portion 38 of the post 18.
The annular chamber 64 can be provided by forming a step 54 on the outer surface of the post 16, which engages the forward end 20 of the connector body 12 and acts as an abutment flange to prevent further rearward insertion of the post 16 into the connector body 12 during manufacture. The step 54 is spaced from the flanged base portion 38 of the post 16 a sufficient distance so that, when the nut 18 is coupled to the connector body 12, the flanged base portion 38 will be positioned within the rear portion 58 of the nut threaded surface 50. Specifically, with the nut 18 having an inner threaded surface 50 having a length L, the flanged base portion 38 of the post is positioned within the rearward portion 58 of the length, and preferably within the rearward-most one-third extent of the length (⅓ L). Thus, the flanged base portion 38 of the post 16 is preferably positioned within the nut 18, relative to the nut threaded surface 50, such that at least one thread, and no more than three threads, of the threaded surface is disposed rearward of the rearward facing wall 68 of the flanged base portion.
In an alternative embodiment, as shown in
In either embodiment, it can be appreciated that the maximum outer diameter of the post flanged base portion 38 is slightly less than the smallest inner diameter of the threads of the nut 18. This will permit some axial movement of the flanged base portion 38 with respect to the threaded surface 50, 50a of the nut 18.
The biasing element 62 disposed within the annular chamber 64 acts between the forward facing wall 66 of the nut 18 and the rearward facing wall 68 of the flanged base portion 38 of the post 16 to urge the nut and the post in opposite axial directions. In the embodiment shown in
The biasing element 62 can be a compression spring, a wave spring (single or double wave), a conical spring washer (slotted or unslotted), a Belleville washer, a high durometer O-ring, or any other suitable element for applying a biasing force between the post 16 and the nut 18, 18a, without locking the post to the nut. In other words, the biasing element preferably maintains its biasing force upon disconnection and reconnection of the nut 18 with an external device. The biasing element 62 is provided to further load the interference between the nut threads 50, 50a and the port connector threads 60 and to maintain signal contact between the cable and the port connector 48.
By positioning the flanged base portion 38 of the post 16 within the rear portion 58 of the nut threaded surface 50, and by providing a constant tension biasing element 62 within the annular chamber 64 between the nut 18 and the post 16, the connector 10 of the present invention allows for up to 360 degree “back-off” rotation of the nut 18 on a terminal, without signal loss. As a result, maintaining electrical contact between the coaxial cable connector 10 and the signal contact 72 of the port connector 48 is improved by a factor of 400-500%, as compared with prior art connectors.
Although the illustrative embodiments of the present invention have been described herein with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments, and that various other changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention.
Various changes to the foregoing described and shown structures will now be evident to those skilled in the art. Accordingly, the particularly disclosed scope of the invention is set forth in the following claims.
This application claims the benefit of U.S. Provisional Application No. 60/943,943, filed on Jun. 14, 2007, which is incorporated by reference herein in its entirety for all purposes.
Number | Name | Date | Kind |
---|---|---|---|
1667485 | MacDonald | Apr 1928 | A |
2258737 | Browne | Oct 1941 | A |
2544654 | Browne | Mar 1951 | A |
2549647 | Turenne | Apr 1951 | A |
2694187 | Nash | Nov 1954 | A |
2754487 | Carr et al. | Jul 1956 | A |
2757351 | Klostermann | Jul 1956 | A |
2805399 | Leeper | Sep 1957 | A |
2870420 | Malek | Jan 1959 | A |
3184706 | Atkins | May 1965 | A |
3196382 | Morello, Jr. | Jul 1965 | A |
3245027 | Ziegler, Jr. | Apr 1966 | A |
3275913 | Blanchard et al. | Sep 1966 | A |
3292136 | Somerset | Dec 1966 | A |
3320575 | Brown et al. | May 1967 | A |
3350677 | Daum | Oct 1967 | A |
3355698 | Keller | Nov 1967 | A |
3373243 | Janowiak et al. | Mar 1968 | A |
3406373 | Forney, Jr. | Oct 1968 | A |
3448430 | Kelly | Jun 1969 | A |
3465281 | Florer | Sep 1969 | A |
3475545 | Stark et al. | Oct 1969 | A |
3498647 | Schroder | Mar 1970 | A |
3517373 | Jamon | Jun 1970 | A |
3533051 | Ziegler, Jr. | Oct 1970 | A |
3537065 | Winston | Oct 1970 | A |
3544705 | Winston | Dec 1970 | A |
3551882 | O'Keefe | Dec 1970 | A |
3564487 | Upstone et al. | Feb 1971 | A |
3629792 | Dorrell | Dec 1971 | A |
3633150 | Swartz | Jan 1972 | A |
3663926 | Brandt | May 1972 | A |
3668612 | Nepovim | Jun 1972 | A |
3671922 | Zerlin et al. | Jun 1972 | A |
3694792 | Wallo | Sep 1972 | A |
3710005 | French | Jan 1973 | A |
3778535 | Forney, Jr. | Dec 1973 | A |
3781762 | Quackenbush | Dec 1973 | A |
3808580 | Johnson | Apr 1974 | A |
3836700 | Niemeyer | Sep 1974 | A |
3845453 | Hemmer | Oct 1974 | A |
3846738 | Nepovim | Nov 1974 | A |
3854003 | Duret | Dec 1974 | A |
3879102 | Horak | Apr 1975 | A |
3907399 | Spinner | Sep 1975 | A |
3910673 | Stokes | Oct 1975 | A |
3915539 | Collins | Oct 1975 | A |
3936132 | Hutter | Feb 1976 | A |
3963320 | Spinner | Jun 1976 | A |
3972013 | Shapiro | Jul 1976 | A |
3976352 | Spinner | Aug 1976 | A |
3980805 | Lipari | Sep 1976 | A |
3985418 | Spinner | Oct 1976 | A |
4046451 | Juds et al. | Sep 1977 | A |
4053200 | Pugner | Oct 1977 | A |
4059330 | Shirey | Nov 1977 | A |
4093335 | Schwartz et al. | Jun 1978 | A |
4126372 | Hashimoto et al. | Nov 1978 | A |
4131332 | Hogendobler et al. | Dec 1978 | A |
4150250 | Lundeberg | Apr 1979 | A |
4156554 | Aujla | May 1979 | A |
4165554 | Faget | Aug 1979 | A |
4165911 | Laudig | Aug 1979 | A |
4168921 | Blanchard | Sep 1979 | A |
4173385 | Fenn et al. | Nov 1979 | A |
4225162 | Dola | Sep 1980 | A |
4227765 | Neumann et al. | Oct 1980 | A |
4250348 | Kitagawa | Feb 1981 | A |
4280749 | Hemmer | Jul 1981 | A |
4339166 | Dayton | Jul 1982 | A |
4346958 | Blanchard | Aug 1982 | A |
4354721 | Luzzi | Oct 1982 | A |
4358174 | Dreyer | Nov 1982 | A |
4373767 | Cairns | Feb 1983 | A |
4400050 | Hayward | Aug 1983 | A |
4407529 | Holman | Oct 1983 | A |
4408821 | Forney, Jr. | Oct 1983 | A |
4408822 | Nikitas | Oct 1983 | A |
4421377 | Spinner | Dec 1983 | A |
4444453 | Kirby et al. | Apr 1984 | A |
4456323 | Pitcher et al. | Jun 1984 | A |
4462653 | Flederbach et al. | Jul 1984 | A |
4464000 | Werth et al. | Aug 1984 | A |
4484792 | Tengler et al. | Nov 1984 | A |
4515427 | Smit | May 1985 | A |
4533191 | Blackwood | Aug 1985 | A |
4540231 | Forney, Jr. | Sep 1985 | A |
4545637 | Bosshard et al. | Oct 1985 | A |
4575274 | Hayward | Mar 1986 | A |
4583811 | McMills | Apr 1986 | A |
4588246 | Schildkraut et al. | May 1986 | A |
4593964 | Forney et al. | Jun 1986 | A |
4596434 | Saba et al. | Jun 1986 | A |
4596435 | Bickford | Jun 1986 | A |
4598961 | Cohen | Jul 1986 | A |
4600263 | DeChamp et al. | Jul 1986 | A |
4614390 | Baker | Sep 1986 | A |
4632487 | Wargula | Dec 1986 | A |
4640572 | Conlon | Feb 1987 | A |
4645281 | Burger | Feb 1987 | A |
4650228 | McMills et al. | Mar 1987 | A |
4655159 | McMills | Apr 1987 | A |
4660921 | Hauver | Apr 1987 | A |
4668043 | Saba et al. | May 1987 | A |
4674818 | McMills et al. | Jun 1987 | A |
4676577 | Szegda | Jun 1987 | A |
4682832 | Punako et al. | Jul 1987 | A |
4688876 | Morelli | Aug 1987 | A |
4688878 | Cohen et al. | Aug 1987 | A |
4691976 | Cowen | Sep 1987 | A |
4703987 | Gallusser et al. | Nov 1987 | A |
4703988 | Raux et al. | Nov 1987 | A |
4717355 | Mattis | Jan 1988 | A |
4738009 | Down et al. | Apr 1988 | A |
4746305 | Nomura | May 1988 | A |
4747786 | Hayashi et al. | May 1988 | A |
4755152 | Elliot et al. | Jul 1988 | A |
4759729 | Kemppainen et al. | Jul 1988 | A |
4761146 | Sohoel | Aug 1988 | A |
4772222 | Laudig et al. | Sep 1988 | A |
4789355 | Lee | Dec 1988 | A |
4806116 | Ackerman | Feb 1989 | A |
4813886 | Roos et al. | Mar 1989 | A |
4820185 | Moulin | Apr 1989 | A |
4834675 | Samchisen | May 1989 | A |
4854893 | Morris | Aug 1989 | A |
4857014 | Alf et al. | Aug 1989 | A |
4869679 | Szegda | Sep 1989 | A |
4874331 | Iverson | Oct 1989 | A |
4892275 | Szegda | Jan 1990 | A |
4902246 | Samchisen | Feb 1990 | A |
4906207 | Banning et al. | Mar 1990 | A |
4915651 | Bout | Apr 1990 | A |
4923412 | Morris | May 1990 | A |
4925403 | Zorzy | May 1990 | A |
4927385 | Cheng | May 1990 | A |
4929188 | Lionetto et al. | May 1990 | A |
4952174 | Sucht et al. | Aug 1990 | A |
4957456 | Olson et al. | Sep 1990 | A |
4973265 | Heeren | Nov 1990 | A |
4979911 | Spencer | Dec 1990 | A |
4990104 | Schieferly | Feb 1991 | A |
4990105 | Karlovich | Feb 1991 | A |
4990106 | Szegda | Feb 1991 | A |
4992061 | Brush et al. | Feb 1991 | A |
5002503 | Campbell et al. | Mar 1991 | A |
5007861 | Stirling | Apr 1991 | A |
5021010 | Wright | Jun 1991 | A |
5024606 | Ming-Hwa | Jun 1991 | A |
5037328 | Karlovich | Aug 1991 | A |
5062804 | Jamet et al. | Nov 1991 | A |
5066248 | Gaver et al. | Nov 1991 | A |
5073129 | Szegda | Dec 1991 | A |
5083943 | Tarrant | Jan 1992 | A |
5120260 | Jackson | Jun 1992 | A |
5127853 | McMills et al. | Jul 1992 | A |
5131862 | Gershfeld | Jul 1992 | A |
5141451 | Down | Aug 1992 | A |
5161993 | Leibfried, Jr. | Nov 1992 | A |
5195906 | Szegda | Mar 1993 | A |
5205761 | Nilsson | Apr 1993 | A |
5207602 | McMills et al. | May 1993 | A |
5217391 | Fisher, Jr. | Jun 1993 | A |
5217393 | Del Negro et al. | Jun 1993 | A |
5269701 | Leibfried, Jr. | Dec 1993 | A |
5283853 | Szegda | Feb 1994 | A |
5284449 | Vaccaro | Feb 1994 | A |
5295864 | Birch et al. | Mar 1994 | A |
5316494 | Flanagan et al. | May 1994 | A |
5318459 | Shields | Jun 1994 | A |
5338225 | Jacobsen et al. | Aug 1994 | A |
5342218 | McMills et al. | Aug 1994 | A |
5354217 | Gabel et al. | Oct 1994 | A |
5371819 | Szegda | Dec 1994 | A |
5371821 | Szegda | Dec 1994 | A |
5371827 | Szegda | Dec 1994 | A |
5393244 | Szegda | Feb 1995 | A |
5431583 | Szegda | Jul 1995 | A |
5435745 | Booth | Jul 1995 | A |
5444810 | Szegda | Aug 1995 | A |
5455548 | Grandchamp et al. | Oct 1995 | A |
5456611 | Henry et al. | Oct 1995 | A |
5456614 | Szegda | Oct 1995 | A |
5466173 | Down | Nov 1995 | A |
5470257 | Szegda | Nov 1995 | A |
5494454 | Johnsen | Feb 1996 | A |
5501616 | Holliday | Mar 1996 | A |
5525076 | Down | Jun 1996 | A |
5542861 | Anhalt et al. | Aug 1996 | A |
5548088 | Gray et al. | Aug 1996 | A |
5550521 | Bernaud et al. | Aug 1996 | A |
5571028 | Szegda | Nov 1996 | A |
5586910 | Del Negro et al. | Dec 1996 | A |
5598132 | Stabile | Jan 1997 | A |
5607325 | Toma | Mar 1997 | A |
5620339 | Gray et al. | Apr 1997 | A |
5632651 | Szegda | May 1997 | A |
5651699 | Holliday | Jul 1997 | A |
5653605 | Woehl et al. | Aug 1997 | A |
5667405 | Holliday | Sep 1997 | A |
5702263 | Baumann et al. | Dec 1997 | A |
5769652 | Wider | Jun 1998 | A |
5775927 | Wider | Jul 1998 | A |
5863220 | Holliday | Jan 1999 | A |
5879191 | Burris | Mar 1999 | A |
5882226 | Bell et al. | Mar 1999 | A |
5967852 | Follingstad et al. | Oct 1999 | A |
5975949 | Holliday et al. | Nov 1999 | A |
5975951 | Burris et al. | Nov 1999 | A |
5997350 | Burris et al. | Dec 1999 | A |
6032358 | Wild | Mar 2000 | A |
6042422 | Youtsey | Mar 2000 | A |
6089903 | Stafford Gray et al. | Jul 2000 | A |
6089912 | Tallis et al. | Jul 2000 | A |
6089913 | Holliday | Jul 2000 | A |
6146197 | Holliday et al. | Nov 2000 | A |
6152753 | Johnson et al. | Nov 2000 | A |
6210222 | Langham et al. | Apr 2001 | B1 |
6217383 | Holland et al. | Apr 2001 | B1 |
6241553 | Hsia | Jun 2001 | B1 |
6261126 | Stirling | Jul 2001 | B1 |
6358077 | Young | Mar 2002 | B1 |
D458904 | Montena | Jun 2002 | S |
D460739 | Fox | Jul 2002 | S |
D460740 | Montena | Jul 2002 | S |
D460946 | Montena | Jul 2002 | S |
D460947 | Montena | Jul 2002 | S |
D460948 | Montena | Jul 2002 | S |
6425782 | Holland | Jul 2002 | B1 |
D461166 | Montena | Aug 2002 | S |
D461167 | Montena | Aug 2002 | S |
D461778 | Fox | Aug 2002 | S |
D462058 | Montena | Aug 2002 | S |
D462060 | Fox | Aug 2002 | S |
D462327 | Montena | Sep 2002 | S |
6491546 | Perry | Dec 2002 | B1 |
D468696 | Montena | Jan 2003 | S |
6530807 | Rodrigues et al. | Mar 2003 | B2 |
6558194 | Montena | May 2003 | B2 |
6712631 | Youtsey | Mar 2004 | B1 |
6716062 | Palinkas et al. | Apr 2004 | B1 |
6733337 | Kodaira | May 2004 | B2 |
6767248 | Hung | Jul 2004 | B1 |
6805584 | Chen | Oct 2004 | B1 |
6817896 | Derenthal | Nov 2004 | B2 |
6848940 | Montena | Feb 2005 | B2 |
6939169 | Islam et al. | Sep 2005 | B2 |
7114990 | Bence et al. | Oct 2006 | B2 |
7892024 | Chen | Feb 2011 | B1 |
20020013088 | Rodrigues et al. | Jan 2002 | A1 |
20040077215 | Palinkas et al. | Apr 2004 | A1 |
20040102089 | Chee | May 2004 | A1 |
20040229504 | Liu | Nov 2004 | A1 |
20050042919 | Montena | Feb 2005 | A1 |
20050208827 | Burris et al. | Sep 2005 | A1 |
20100081321 | Malloy et al. | Apr 2010 | A1 |
20100081322 | Malloy et al. | Apr 2010 | A1 |
20100255721 | Purdy et al. | Oct 2010 | A1 |
20110111623 | Burris et al. | May 2011 | A1 |
20110117774 | Malloy et al. | May 2011 | A1 |
Number | Date | Country |
---|---|---|
2096710 | Nov 1994 | CA |
2096710 | Nov 1994 | CA |
47 931 | Oct 1888 | DE |
1 02 289 | Jul 1897 | DE |
11 17 687 | Nov 1961 | DE |
1 515 398 | Nov 1962 | DE |
1 191 880 | Apr 1965 | DE |
11 91 880 | Apr 1965 | DE |
15 15 398 | Apr 1970 | DE |
2 221 936 | May 1972 | DE |
2 225 764 | May 1972 | DE |
2 261 973 | Dec 1972 | DE |
22 25 764 | Dec 1972 | DE |
22 21 936 | Nov 1973 | DE |
2 261 973 | Jun 1974 | DE |
32 11 008 | Oct 1983 | DE |
32 11 008 | Oct 1983 | DE |
0 072 104 | Feb 1983 | EP |
0 116 157 | Aug 1984 | EP |
0 116 157 | Aug 1984 | EP |
0 167 738 | Jan 1986 | EP |
0 167 738 | Jan 1986 | EP |
0072104 | Jan 1986 | EP |
0 265 276 | Apr 1988 | EP |
0 265 276 | Apr 1988 | EP |
2 234 680 | Jun 1974 | FR |
2232846 | Jan 1975 | FR |
2234680 | Jan 1975 | FR |
2 462 798 | Feb 1981 | FR |
2462798 | Feb 1981 | FR |
2494508 | May 1982 | FR |
0 589 697 | Mar 1945 | GB |
1 087 228 | Oct 1967 | GB |
1 270 846 | Apr 1972 | GB |
2 019 665 | Oct 1979 | GB |
2019 665 | Oct 1979 | GB |
2 079 549 | Jan 1982 | GB |
2 079 549 | Jan 1982 | GB |
2079 549 | Jan 1982 | GB |
2 331 634 | May 1999 | GB |
2331634 | May 1999 | GB |
3280369 | Mar 1990 | JP |
3280369 | Dec 1991 | JP |
305417 | May 1997 | TW |
579079 | Mar 2004 | TW |
262638 | Sep 2006 | TW |
WO 9324973 | Dec 1991 | WO |
WO-9324973 | Dec 1993 | WO |
WO-9608854 | Mar 1996 | WO |
WO-0186756 | Nov 2001 | WO |
Number | Date | Country | |
---|---|---|---|
60943943 | Jun 2007 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 12156970 | Jun 2008 | US |
Child | 13192393 | US |