Merchandise dispensing device

Information

  • Patent Grant
  • 6189734
  • Patent Number
    6,189,734
  • Date Filed
    Thursday, September 4, 1997
    27 years ago
  • Date Issued
    Tuesday, February 20, 2001
    23 years ago
Abstract
A gravity feed merchandise dispensing device comprises at least one plastic track capable of supporting in tandem a row of similar bottles of the type having an annular neck flange, and has a lead bottle support basket suspended at the front end of the track which is removable and interchangeable with other lead bottle supports so as to accommodate bottles of different heights. The rails of the track have a sloped transition section at the front end of the track which eases movement of bottles off the track and into the basket, and facilitates the front loading of bottles into the track.
Description




TECHNICAL FIELD




The present invention relates to a merchandising display unit for bottles, and in particular, a merchandising display unit having interchangeable bottle dispensing components which accommodate bottles of different heights.




BACKGROUND OF THE INVENTION




Refrigerated display cases for beverage containers, and the like, generally include vertically aligned rows of racks, commonly called glide racks, upon which the beverage containers are loaded. The beverage containers may be cans or bottles of any size and the width of the glide rack rows are adjusted accordingly to accommodate each particular container. The glide rack includes a plurality of rows extending from the front of the glide rack to the rear thereof. Each row may then be loaded with rows of beverage containers extending from the front of the display case to the rear of the display case. Each glide rack is disposed within the refrigerated display case at an angle of approximately five to twelve degrees. Thus, when the lead beverage container is removed from the row by a customer, the next beverage container will move forward to occupy the forwardmost position, and the remainder of the row of beverage containers will follow. In this manner, there is always a beverage container at the front of each row of the glide rack ready to be dispensed to a customer.




The smooth sliding surface of the glide rack soon wears off, however, thus creating more friction as the beverage containers slide thereon such the plastic sliding surface of the glide rack becomes more roughened. This in turn creates more problems as the beverage containers may fall over, tip, rotate, occasionally open and spill. The repeated sliding along the roughened sliding surface and the beverage containers tipping and spilling creates a worn and unusable glide rack within only three to four months of use. Therefore, it has generally been necessary to completely replace the entire glide rack once it reached this point of wear and tear, resulting in costly and repeated expenditures.




To avoid the drawbacks of conventional glide racks, another alternative for merchandising bottles for display and purchase is an overhead support system, such as shown in U.S. Pat. No. 4,401,221 to Suttles and U.S. Pat. No. 4,318,485 to Clement. In these types of systems, an overhead support track having a pair of rails is used to receive the neck flange of the bottle to be displayed. The bottles are inserted from the rear and slide forward under gravity feed due to the angle of the support track.




In some of these prior art configurations, the front end of the track is sloped upwardly so as to retard the forward motion of the bottles and to present the lead bottle to the customer. As a result, the bottom of the lead bottle is kicked out in a forward direction due to the force from the bottles therebehind, thereby presenting an unorganized merchandising display of the bottles. In addition, these types prior art systems require the customer to grasp the bottle by the bottom area and pull upwards in order to remove the bottle neck from the prior art track that holds it. This makes it more difficult for the customer to remove a bottle from the display. Further, should the customer change his mind about his beverage selection, it is extremely difficult to reinsert the bottle into the track from the front thereof.




In another prior art configuration, a fixed stirrup-like structure at the forward end of the track catches and supports the lead bottle, which no longer is supported by the track. This system cannot readily accommodate bottles of different heights. Further, due to the assembly of the display units of the prior art, should a single track need to be replaced, it is necessary to disassemble an entire shelf in order to do so.




SUMMARY OF THE INVENTION




The present invention provides a merchandising display system for bottles that is quickly and easily installed. The system of the present invention also provides easily interchangeable components tailored to bottles of different height and/or diameter, thus yielding greater flexibility for the use of the system. In addition, the system of the present invention offers increased visibility of the bottled product to be displayed for sale, both the bottle label and any distinctive shaping of the bottle itself, and enables the product to be loaded from either the front or the rear.




These and other objects are achieved by providing a gravity feed merchandise dispensing device of the type comprising at least one track, each track capable of supporting in tandem a row of similar bottles of the type having an annular flange on the neck of the bottle, and each track having a front end, a rear end and a pair of rails spaced apart to receive between them the necks of suitably sized bottles such that the underside of each bottle neck flange engages the rails whereby the bottles are suspended by their flanges for movement relative to the track. A lead bottle support is suspended from the track and sized to support the bottom of the lead bottle of the row with the neck of the lead bottle adjacent the front end of the track but disengaged from the rails. Each track normally is inclined downwardly toward the front end so as to permit the suspended bottles to gravity-feed one after the other to the front end of the track each time the lead bottle in the row is unloaded from the lead bottle support. The lead bottle support is removably suspended on the track and is interchangeable with other lead bottle supports, some of different height and/or diameter.




Preferably, the front end of each of the rails slants downwardly relative to the rail to form a transition ramp for bottle neck flanges as the bottles move from the track to the lead bottle support during dispensing, or as the bottles move from the lead bottle support to the track when the track is being loaded from the front.











Various additional advantages and features of novelty which characterize the invention are further pointed out in the claims that follow. However, for a better understanding of the invention and its advantages, reference should be made to the accompanying drawings and descriptive matter which illustrate and describe a preferred embodiment of the invention.




BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a single dispensing track according to the present invention, showing the bottles in position on the track, with the lead bottle in a dispensing basket;





FIG. 2

is a perspective view similar to

FIG. 1

, but showing the track and basket empty;





FIG. 3

is a perspective view similar to

FIG. 2

, showing the track with the basket removed;





FIG. 4

is an exploded view showing the assembly of two tracks and the crossbar supports to which they are attached;





FIG. 5

is a rear perspective view of the support posts and crossbars for the merchandising display unit on which the dispensing tracks of the invention are mounted;





FIG. 6

is a perspective view of one form of dispensing basket according to the invention;





FIG. 7

is a perspective view of another form of dispensing basket according to the invention;





FIG. 8

is an exploded view of a dispensing track according to the invention;





FIG. 9

is an enlarged exploded view of the front end of the track of

FIG. 8

; and





FIG. 10

is a front elevational view of a dispensing track and basket according to the invention, showing a bottle in the basket.











DETAILED DESCRIPTION




A merchandising display unit in accordance with the present invention may be used within a refrigerated display case in lieu of the prior art glide rack units, or anywhere else the merchandiser may be inclined to display the bottles for sale.




Referring to

FIGS. 1-5

, the display unit includes a plurality of posts


10


with crossbars


20


extending between adjacent front posts


10




a


and between adjacent rear posts


10




b


, and a plurality of tracks or lanes


30


being mounted on the crossbars


20


by means of integral snap hooks


32




a


,


32




b


, with a lead bottle support or dispensing basket


60


suspended on the front end of each track


30


.




Referring to

FIGS. 4 and 5

, rear crossbar


20




b


includes endplates


22


having securing hooks


24


extending from the ends thereof Each of posts


10




a


,


10




b


has a series of vertically spaced slots or holes


12


on the rear face thereof. Thus, as in a conventional shelving arrangement, securing hooks


24


are disposed in holes


12


and a downward force is used to secure the crossbars in place by engagement of securing hooks


24


with the edges of the holes. A similar attachment can be used for front crossbar


20




a


, but chains


26


and S-hooks


28


are preferred because they more easily accommodate variations in post spacing.




After the crossbars


20




a


,


20




b


are installed, tracks


30


are mounted thereon by securing snap hooks


32




a


,


32




b


onto the crossbars. As shown in

FIG. 4

, one of the two rearmost snap hooks


32




b


is disposed over the rear crossbar


20




b


while the forwardmost snap hook


32




a


is disposed over the front crossbar


20




a


. The rear crossbar


20




b


is mounted slightly higher than the front crossbar


20




a


such that track


30


is slightly inclined at a preferred angle of approximately seven to eleven degrees. The inclined slope of the track assists in providing a gravity feed for the bottles B when they are loaded therein and thereby assists in maintaining the lead bottle in the proper position for presentation to the customer.




Crossbars


20




a


,


20




b


have a preferred diameter of 0.75 inches and a preferred length of approximately 29.6 inches, but can be of two-part, telescopic construction so as to be adjustable. Endplates


22


have a preferred thickness of approximately 0.25 inches, a width and length of approximately 2.25 inches, and are welded or otherwise secured to the ends of crossbars


20


. Securing hook


24


extends approximately 0.5 inches from end plate


22


and is approximately 0.5 inches wide. Posts


10


are supported in conventional fashion, e.g., on adjustable leveling feet (not shown), and are fixed in relative positions by conventional top and bottom bracing (not shown). The crossbars


20


, end plates


22


and posts


10


preferably are made of steel and are painted or otherwise coated to inhibit corrosion.




Track


30


in accordance with a preferred embodiment of the present invention is shown in greater detail in

FIGS. 3

,


8


,


9


and


10


. In a preferred embodiment, track


30


is injection molded of high impact polystyrene in left and right halves


30




a


,


30




b


, which are welded together ultrasonically to form a unitary structure. A rear bottle stop


34


in the form of a wire loop is inserted into recesses in the track halves prior to welding. Reinforcing ribs


36


are integrally molded into each track half


30




a


,


30




b


. Track


30


has a length of approximately 29.5 inches and a width of approximately 2.770 inches, although it will be obvious to one skilled in the art that any desired width and length could be used depending upon the size of the bottles to be supported and the overall size of the entire merchandising display unit.




As shown in

FIGS. 8

,


9


and


10


, the lower surface of track


30


includes two lips or rails


40




a


,


40




b


extending inwardly from the opposing sides thereof by a distance of approximately 0.19 inches. Also extending inwardly approximately 0.105 in. from track halves


30




a


,


30




b


are upper ribs


42




a


,


42




b


. Rails


40




a


,


40




b


and ribs


42




a


,


42




b


extend substantially the full length of track


30


. For bottles having a 28 mm closure, rails


40




a


,


40




b


and ribs


42




a


,


42




b


define a bottle top channel


44


having a width of approximately 31.24 mm between ribs


42




a


,


42




b


, and a bottom opening between rails


40




a


,


40




b


of 26.95 mm.




The necks of most bottles B having a 28 mm closure include a flange or ring R having a diameter of approximately 32.4 to 33.02 mm, depending on the size of the bottle. Thus, rails


40




a


,


40




b


serve to support bottle B by the neck ring R when the top of the bottle is disposed within channel


44


, while ribs


42




a


,


42




b


limit sideways tilting of the bottles to keep the row of bottles substantially aligned. The track of the preferred embodiment of the present invention will support typical 12 oz, 16 oz, 20 oz, 24 oz and one liter bottles, which have a common 28 mm closure. Other sizes of bottles, such as those having a 38 mm closure, could of course be accommodated in the present invention by altering the size of the bottle top channel and the width of the rails


40




a


,


40




b


, and any other support structure as necessary.




The forward ends of rails


40




a


,


40




b


comprise transition ramps


46




a


,


46




b


, respectively, which slant downwardly at an angle of approximately 15° from the rails, and extend forwardly and to the sides of the front opening of the bottle top channel


44


. Ramps


46




a


,


46




b


serve to ease the movement of the lead bottle B off rails


40




a


,


40




b


. Referring to

FIG. 10

, the bottle is supported with its flange or ring R no lower than ramps


46




a


,


46




b


, and preferably at about the same level as the ramps. This arrangement facilitates the bottle's reinsertion into track


30


in the case of a purchaser who has changed his beverage selection and wishes to make room in basket


60


for the bottle that he has just removed. It also allows for speedy loading of bottles into track


30


by beverage delivery personnel.




As noted, track


30


is suspended from crossbars


20


by means of snap hooks


32


which are integrally molded into track halves


30




a


,


30




b


. Referring to

FIGS. 8 and 9

, each snap hook


32


is formed at the rear of an upwardly open recess


33


, and comprises a part-cylindrical socket


35


approximately 0.760 in. in diameter and 240° in extent, with a forward-facing opening approximately 0.656 in. in size. Socket


35


snugly receives crossbar


20


after the crossbar enters recess


33


and track


30


is pushed forwardly to force crossbar


20


past the narrower opening and into the socket. Track


30


thus is suspended at the front by crossbar


20




a


received in snap hook


32




a


, and at the rear by crossbar


20




b


received in one of the rear snap hooks


32




b.






Referring to

FIGS. 3 and 9

, the front end of track


30


has a basket-carrying or retainer section


50


defined by an arcuate saddle


52


, a front flange


54


, a rear flange


56


and a central longitudinal slot


58


in saddle


52


. Referring to

FIGS. 3 and 7

, bottle dispensing basket


60


preferably is injection molded of polycarbonate and comprises an arcuate upper hanger portion


62


, opposing sidewalls


64


extending downwardly therefrom, a front waist band


66


and a floor structure or platform


68


with a front stop


69


to support the lead bottle B, as shown in

FIGS. 1 and 10

. Upper hanger portion


62


includes a depending short rib


70


which engages slot


58


. Each sidewall


64


has a locking element in the form of a rib


72


which snaps under the edge of track


30


to removably secure basket


60


in the correct position. Thus, basket


60


is removably secured on track


30


for dispensing bottles


20


without the use of additional hardware such as screws, rivets, etc. In addition, there are no moving parts or mechanisms associated with this arrangement that will fail to operate properly due to dirt, dust, or sticky syrup spilling within the display unit. Further, as seen in

FIG. 1

, basket


60


supports a bottle with little obstruction so that the bottle is highly visible and can easily be grasped and removed by the purchaser. Basket


60


is sized to support a 20 oz. bottle.




Platform


68


of basket


60


preferably includes grooves


67


therein which decrease the surface contact between the bottle and the floor to thereby assist the bottle thereon in maintaining an upright position and provide better seating of the bottle within the forward portion of the basket. Basket


60


may easily be removed or replaced when the size of the bottle to be displayed is changed, e.g., from a 20 oz. bottle to a 1 liter bottle.





FIG. 6

depicts an alternate basket configuration


160


for accommodating larger bottles, e.g., of the one-liter size. Basket


160


is similar to basket


60


, with an arcuate upper hanger portion


162


; sidewalls


164


; a front waist band


166


; a floor structure or platform


168


with ribs


167


and a front stop


169


; a short rib


170


for engaging slot


58


; and ribs


172


which snap under the edges of track


30


.




The invention thus provides a gravity feed system for merchandising bottles for sale. The bottles are suspended within a plurality of tracks


30


that are disposed in a plurality of rows, and the angle of inclination from the rear to the front of the track


30


assures that the bottles will slide forward. The tracks confine the necks and closures of the bottles to keep them aligned, while the basket at the front end of each track presents an upright, highly visible bottle. Thus, the lead bottle does not kick out forward or to the right or left as in the prior art, such that a neater, more organized display is obtained. The purchaser merely grasps the head or shoulders of the bottle and removes the bottle from the basket. If the purchaser changes his beverage selection, he can replace the removed bottle in the basket


60


merely by pushing rearwardly on the bottle occupying the basket so that its flange or ring R rides up ramps


46




a


,


46




b


and onto rails


40




a


,


40




b


. This arrangement also allows for quick and easy loading of bottles into the track from the front by delivery personnel.




From the foregoing detailed description, it will be evident that there are a number of changes, adaptations and modifications of the present invention which come within the province of those persons having ordinary skill in the art to which the aforementioned invention pertains.



Claims
  • 1. A gravity feed merchandise dispensing device comprising at least one track, each track capable of supporting in tandem a row of similar bottles of the type having an annular flange on the neck of the bottle, each track having a front end, a rear end, a pair of rails spaced apart to receive between them the necks of suitably sized bottles such that the underside of each bottle neck flange engages the rails whereby the bottles are suspended by their flanges for movement relative to the track, and a lead bottle support suspended from the track and sized to support the bottom of the lead bottle of the row with the neck of the lead bottle adjacent the front end of the track but disengaged from the rails, each track normally being inclined downwardly toward the front end so as to permit the suspended bottles to gravity-feed one after the other to the front end of the track each time the lead bottle in the row is unloaded from the lead bottle support, wherein the front end of each of said rails slants downwardly relative to the rail to form a transition ramp for bottle neck flanges as the bottles move from the track to the lead bottle support during dispensing, or as the bottles move from the lead bottle support to the track when the track is being loaded.
  • 2. The dispensing device according to claim 1 wherein the lead bottle support includes a top portion adapted to be supported on a top surface of the track, spaced side members connected to said top portion and adapted to flank the track, and a platform connected to said side members for supporting the lead bottle.
  • 3. The dispensing device according to claim 2 wherein the track has a retainer section adjacent the front end thereof which engages said top portion to retain the lead bottle support on the track.
  • 4. The dispensing device according to claim 3 wherein said retainer section includes a recess in the top of the track which conforms to and receives said top portion.
  • 5. The dispensing device according to claim 4 wherein said recess and said to portion are saddle-shaped.
  • 6. The dispensing device according to claim 5 wherein said recess has a longitudinal medial slot, and said top portion has a depending longitudinal medial rib which mates with said medial slot.
  • 7. The dispensing device according to claim 6 wherein each of said side members is resilient and has a locking element which releasably engages the track to removably secure the lead bottle support in position.
  • 8. The dispensing device according to claim 7 wherein each of said locking elements comprises an inwardly facing rib which snap-actingly engages the adjacent lower side edge of the track when said top portion is received in said recess.
  • 9. The dispensing device according to claim 8 wherein said platform includes a front stop adapted to engage the lower front edge of the lead bottle.
  • 10. The dispensing device according to claim 9 wherein the lead bottle support includes a front waist band above said platform which interconnects said side members at the front of the lead bottle support and is adapted to engage a medial portion of the front of the lead bottle.
  • 11. The dispensing device according to claim 1 wherein said transition ramp slants at an angle of approximately 15 degrees relative to the rail.
  • 12. The dispensing device according to claim 1 wherein said transition ramp extends forwardly of and laterally outwardly along the front face of the track.
  • 13. The dispensing device according to claim 12 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 14. The dispensing device according to claim 1 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 15. A gravity feed merchandise dispensing device comprising at least one track, the track capable of supporting in tandem a row of similar bottles of the type having an annular flange on the neck of the bottle, the track having a front end, a rear end, a pair of rails spaced apart to receive therebetween the necks of suitably sized bottles such that the underside of each bottle neck flange engages the pair of rails whereby the bottles are suspended by their flanges for movement relative to the track, and a lead bottle support suspended from the track and sized to support the bottom of the lead bottle of the row with the neck of the lead bottle adjacent the front end of the track but disengaged from the rails, each track normally being inclined downwardly toward the front end so as to permit the suspended bottles to gravity-feed one after the other to the front end of the track each time the lead bottle in the row is unloaded from the lead bottle support, wherein the lead bottle support is removably suspended on the rack and is interchangeable with at least one other lead bottle support, and wherein the front end of each of the pair of rails slants downwardly relative to the rails to form a transition ramp for bottle neck flanges as the bottles move from the track to the lead bottle support during dispensing, or as the bottles move from the lead bottle support to the track when the track is being loaded.
  • 16. The dispensing device according to claim 15 wherein the at least one other lead bottle support is of a different height to allow the track to accommodate and dispense a row of similar bottles of selected size.
  • 17. The dispensing device according to claim 15 wherein the lead bottle support includes a top portion adapted to be supported on a top surface of the track, spaced side members connected to said top portion and adapted to flank the track, and a platform connected to said side members for supporting the lead bottle.
  • 18. The dispensing device according to claim 15 wherein said transition ramp slants at an angle of approximately 15 degrees relative to the rails.
  • 19. The dispensing device according to claim 15 wherein said transition ramp extends forwardly of and laterally outwardly along the front face of the track.
  • 20. The dispensing device according to claim 17 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 21. The dispensing device according to claim 15 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 22. A gravity feed merchandise dispensing device comprising at least one track, the track capable of supporting in tandem a row of similar bottles of the type having an annular flange on the neck of the bottle, the track having a front end, a rear end, a pair of rails spaced apart to receive therebetween the necks of suitably sized bottles such that the underside of each bottle neck flange engages the pair of rails whereby the bottles are suspended by their flanges for movement relative to the track, and a lead bottle support suspended from the track and sized to support the bottom of the lead bottle of the row with the neck of the lead bottle adjacent the front end of the track but disengaged from the rails, each track normally being inclined downwardly toward the front end so as to permit the suspended bottles to gravity-feed one after the other to the front end of the track each time the lead bottle in the row is unloaded from the lead bottle support, wherein the lead bottle support is removably suspended on the rack and is interchangeable with at least one other lead bottle support, and wherein the track includes two longitudinal halves which are separately injection molded of plastic material and are joined together to form the track.
  • 23. The dispensing device according to claim 22 wherein the at least one other lead bottle support is of a different height to allow the track to accommodate and dispense a row of similar bottles of selected size.
  • 24. The dispensing device according to claim 22 wherein the lead bottle support includes a top portion adapted to be supported on a top surface of the track, spaced side members connected to said top portion and adapted to flank the track, and a platform connected to said side members for supporting the lead bottle.
  • 25. The dispensing device according to claim 22 wherein the front end of each of the pair of rails slants downwardly relative to the rails to form a transition ramp for bottle neck flanges as the bottles move from the track to the lead bottle support during dispensing, or as the bottles move from the lead bottle support to the track when the track is being loaded.
  • 26. The dispensing device according to claim 25 wherein said transition ramp slants at an angle of approximately 15 degrees relative to the rails.
  • 27. The dispensing device according to claim 25 wherein said transition ramp extends forwardly of and laterally outwardly along the front face of the track.
  • 28. The dispensing device according to claim 27 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 29. The dispensing device according to claim 25 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 30. The dispensing device according to claim 22 wherein the two halves of the track are welded together.
  • 31. The dispensing device according to claim 22 wherein the track includes at least one integrally molded hanging element which is adapted to mate with and hang from a transverse bar of a merchandising support rack.
  • 32. A gravity feed merchandise dispensing device comprising at least one track, the t rack capable of supporting in tandem a row of similar bottles of the type having an annular flange on the neck of the bottle, the track having a front end, a rear end, a pair of rails spaced apart to receive therebetween the necks of suitably sized bottles such that the underside of each bottle neck flange engages the pair of rails whereby the bottles are suspended by their flanges for movement relative to the track, and a lead bottle support suspended from the track and sized to support the bottom of the lead bottle of the row with the neck of the lead bottle adjacent the front end of the track but disengaged from the rails, each track normally being inclined downwardly toward the front end so as to permit the suspended bottles to gravity-feed one after the other to the front end of the track each time the lead bottle in the row is unloaded from the lead bottle support, wherein the track includes two longitudinal halves which are separately injection molded of plastic material and are joined together to form the track.
  • 33. The dispensing device according to claim 32 wherein the lead bottle support includes a top portion adapted to be supported on a top surface of the track, spaced side members connected to said top portion and adapted to flank the track, and a platform connected to said side members for supporting the lead bottle.
  • 34. The dispensing device according to claim 32 wherein the front end of each of the pair of rails slants downwardly relative to the rails to form a transition ramp for bottle neck flanges as the bottles move from the track to the lead bottle support during dispensing, or as the bottles move from the lead bottle support to the track when the track is being loaded.
  • 35. The dispensing device according to claim 34 wherein said transition ramp slants at an angle of approximately 15 degrees relative to the rails.
  • 36. The dispensing device according to claim 34 wherein said transition ramp extends forwardly of and laterally outwardly along the front face of the track.
  • 37. The dispensing device according to claim 34 wherein the lead bottle is supported with its neck flange above the lowermost edge of said transition ramp.
  • 38. The dispensing device according to claim 32 wherein the two halves of the track are welded together.
  • 39. The dispensing device according to claim 32 wherein the track includes at least one integrally molded hanging element which is adapted to mate with and hang from a transverse bar of a merchandising support rack.
Parent Case Info

This application claims the benefit of provisional application No. 60/031,118, filed Nov. 18, 1996.

US Referenced Citations (37)
Number Name Date Kind
2218444 Vineyard Oct 1940
2289751 Brenholt Jul 1942
2588618 Di Renzo Mar 1952
2620691 Gould Dec 1952
2880904 Linthicum Apr 1959
2943900 Van Brunt Jul 1960
3243220 Karas Mar 1966
3553927 Anglade, Jr. Jan 1971
4037766 Iacono Jul 1977
4303162 Suttles Dec 1981
4310097 Merl Jan 1982
4318485 Clement Mar 1982
4367818 Suttles Jan 1983
4401221 Suttles Aug 1983
4423816 Suttles Jan 1984
4598828 Young et al. Jul 1986
4809855 Bustos Mar 1989
5586665 Brousseau Dec 1996
5586687 Spamer et al. Dec 1996
5595310 Spamer et al. Jan 1997
5645176 Jay Jul 1997
5669527 Hardy Sep 1997
5695074 Wiese Dec 1997
5695075 Flum et al. Dec 1997
5706956 Headrick et al. Jan 1998
5706958 Spamer Jan 1998
5706978 Spamer et al. Jan 1998
5718341 Robertson Feb 1998
5755341 Spamer May 1998
5779068 Whiten et al. Jul 1998
5788091 Robertson et al. Aug 1998
5845791 Kawolics Dec 1998
5865324 Jay et al. Feb 1999
5875919 Spamer et al. Mar 1999
5878862 Dewsnap Mar 1999
5878894 Robertson Mar 1999
5904256 Jay May 1999
Foreign Referenced Citations (1)
Number Date Country
0 032 122 A2 Jul 1981 EP
Provisional Applications (1)
Number Date Country
60/031118 Nov 1996 US