Window jamb having uniform appearance

Information

  • Patent Grant
  • 6684571
  • Patent Number
    6,684,571
  • Date Filed
    Wednesday, August 29, 2001
    22 years ago
  • Date Issued
    Tuesday, February 3, 2004
    20 years ago
Abstract
A window jamb component assembly mountable in the jambs of a double hung window for cooperative engagement with the sash assemblies thereof. The component assembly includes a longitudinally elongated jamb liner having upper and lower segments comprising a pair of channel guides spaced apart by a profiled web. The profiled web defines sequentially aligned recesses, namely an inner weather stripping recess, a jamb filler recess and an outer weather stripping recess. A jamb filler, held by the jamb filler recess, provides a uniformly clad surface for the jambs to match the appearance of the trim of the double hung window. Frame weather stripping for sealingly engaging the sash assemblies of the double hung window is deployed and held in the inner and outer weather stripping recesses. Such assembly provides a visually pleasing finish for the window jambs, while providing improved cooperation between the window jamb and the sash assemblies.
Description




TECHNICAL FIELD




The present invention relates to windows and carrying systems for jambs of a double hung window, and more particularly to an aesthetically pleasing window jamb component assembly mountable in the jambs of a double hung window for cooperative engagement with the sash assemblies thereof.




BACKGROUND OF INVENTION




Jamb liners having numerous configurations are known for sealed mounting to a window jamb of a double hung window system. A preoccupation of the prior art appears to be the cooperative engagement of the jamb liner with the window jamb. Known liner configurations seek an abuttingly snug and air tight fit for the liner while nonetheless urging elements of the liner outward from the window jamb so as to maintain a substantial degree of functionality and provide, to some degree, an acceptable overall appearance.




Typically, spring or spring hinge members are carried by the rear of a jamb liner for abutting against the window jamb to urge the remainder of the liner outward, thereby providing a secure “fit” for the liner in the jamb. Unfortunately, little attention has been focused upon the exterior configuration, general functionality, and overall appearance of the jamb liner.




The ultimate issue confronting the purchasers of windows is an assessment of quality as a function of cost. Quality issues are typically embodied in the notions of aesthetics and functionality. Aesthetics, even more so than function, can be determinative. Purchasers, whether they be builders or home owners, are drawn to attractive window units, particularly those having a neat or clean appearance.




Of all window system components, jamb liners have emphasized function, namely providing an interface between the window jamb and sash assemblies, at the expense of aesthetics. In the totality of a window system, jamb liners tend to stand out. Ideally, the window jambs should blend into their surroundings while nonetheless maintaining their function within the window system environment.




As such it is most desirable to provide an aesthetically pleasing window jamb finish for a double hung window that retains the aforementioned functional objectives. More particularly, it is most advantageous to provide an attractive window jamb component assembly mountable in the jambs of a double hung window which offers improved sash assembly cooperation.




SUMMARY OF THE INVENTION




The present invention is a window jamb component assembly mountable in the jambs of a double hung window for cooperative engagement with the sash assemblies thereof. The component assembly includes a longitudinally elongated jamb liner having upper and lower segments, and sash assembly carriages spaced apart by a profiled web. The profiled web defines sequentially aligned recesses, namely an inner weather stripping recess, a jamb filler recess, and an outer weather stripping recess.




The window jamb component assembly also includes a jamb filler, held by the jamb filler recess. The jamb filler provides a uniformly clad and visually appealing surface for the jambs of a double hung window.




Frame weather stripping for sealingly engaging the sash assemblies of a double hung window is also provided. The weather stripping is deployed and held in the inner and outer weather stripping recesses. More particularly, an upper weather stripping segment is carried by the upper outer weather stripping recess, while a lower weather stripping segment is carried by the lower inner weather stripping recess.




A rail seal is further included, being positioned to bridge the lower end of the upper weather stripping segment and the upper end of the lower weather stripping segment. By this structure and arrangement, a barrier against undesirable fluid flow is formed throughout the elongation of the longitudinally elongated jamb liner when the sash assemblies of a double hung window are fully closed.




The sash assemblies preferably comprise a pair of longitudinally elongated channel guides. One of the channel guides is an inner elongated channel guide whereas the other is an outer elongated channel guide. The inner elongated channel is adjacent the inner weather stripping recess. The longitudinally elongated channel guides retain balance tubes in their upper segment for guiding the sash assemblies.




The window jamb component assembly of the present invention thereby provides a visually pleasing finish for the window jambs, while providing improved cooperation between the window jamb and the sash assemblies.











More specific features and advantages will become apparent with reference to the DETAILED DESCRIPTION OF THE INVENTION, appended claims, and the accompanying drawing figures.




BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an elevational view of a double hung window system.





FIGS. 2A and 2B

are sectional views taken along lines


2


A—


2


A and


2


B—


2


B of

FIG. 1

illustrating lower and upper portions of the window jamb component assembly respectively of the present invention in relation to the various double hung window system assemblies and components.





FIG. 3

is a fragmented front elevational view of the window jamb component assembly, particularly illustrating the lower segment thereof.





FIG. 4

is a sectional view taken along


4





4


of

FIG. 3

illustrating the upper segment components of the window jamb component assembly.





FIG. 5

is a fragmented perspective view of a window jamb equipped with the window jamb component assembly, with the inner sash assembly removed.











DETAILED DESCRIPTION OF THE INVENTION




A double hung window system


10


is generally shown in FIG.


1


. Upper


12


(i.e., exterior) and lower


14


(i.e., interior) sashes are supported by opposing side jambs


16


, a header jamb


18


and a sill


20


opposite the header jamb


18


. The lower (i.e., interior) sash


14


is supported for sliding vertical movement along the side jambs


16


.




Referring now to

FIGS. 2A and 2B

, sectional views of the double hung window


10


are provided illustrating the window jamb component assembly


30


of the present invention and its relationship to the various window system components and assemblies.




Opposing contoured side jambs


16


(i.e., window frames), indirectly, vis-a-vis the window jamb component assemblies


30


, support the sash assemblies


22




a


and


22




b


, which typically include stiles


23


and stile cladding


24


which cooperatively support an upper


12


or lower


14


sash. The side jambs


16


of the double hung window system


10


are equipped with interior and exterior finish elements, namely jamb finish liner


17


and jamb cladding


19


respectively, which are shown here in orthogonal abutment with the window jamb component assemblies


30


. The jamb cladding


19


carries a screen frame


26


, which supports a bug screen


27


, and jamb nailing fins


28


which facilitate installation.




Referring now also to

FIGS. 3 and 4

, the window jamb component assembly


30


includes a longitudinally elongated jamb liner


32


having upper


34


and lower


36


segments or portions, and sash assembly carriages


38


spaced apart by a transverse profiled web


40


. The upper


34


and lower


36


sections are generally or approximately delimited by a check rail seal


39


, also shown in FIG.


5


.




The sash assembly carriages


38


preferably comprise a pair of longitudinally elongated channel guides, namely an inner (i.e., interior) channel guide


42


and an outer (i.e., exterior) channel guide


44


. Each of the channel guides is generally U-shaped, having opposing wall sections, namely inner


46


and outer


48


wall sections, and a rear wall section


50


extending between and joined to the longitudinal rear edges


47


of the inner


46


and outer


48


wall sections to thereby define the channel guides


42


,


44


. Tabs


52


(i.e., channel tabs) preferably project orthogonally from each of the opposing wall sections


46


and


48


(e.g., the outer wall tab projects in a direction toward the inner wall section), with each opposing wall section


46


,


48


of the channel guides


42


,


44


terminating in a tab


52


at their free edge.




The upper segments


34


of both the interior


42


and exterior


44


elongated channel guides (i.e., the portion of the channel guides


42


,


44


occupying the upper segment


34


of the jamb liner


32


) are equipped with balance tubes


54


for guiding the sash assemblies


22




a


,


22




b


(compare the lower


36


and upper


34


segments of the jamb liner


32


, left and right sides respectively, in

FIGS. 2A

,


2


B). The opposingly paired channel tabs


52


cooperatively engage the sidewalls


55


of the stylized W-shaped balance tubes


54


, as shown in

FIG. 4

, to hold them in place. The lower segments


36


of the channel guides


42


,


44


carry sash assembly interfacing hardware


56


which facilitates retention and translation of the sash assemblies


22




a


,


22




b


relative to the window jambs


16


. Hardware suitable to perform this translation function is known to those skilled in the art.




Although the interior


42


and exterior


44


channel guides are equipped with similar elements, namely balance tubes


54


and sash assembly interfacing hardware


56


, they are not identical. The balance tube


54


held by the interior channel guide


42


is longer than its counterpart in the exterior channel guide


44


as illustrated in FIG.


3


. Furthermore, to accommodate tilting of the interior sash assembly, the “extended” balance tube


54


held by the interior channel guide


42


includes an interior sash assembly blade extension slot


58


. Many styles and arrangements are known for the aforementioned slot and hardware components, including even alternate structures to accomplish window tilting, with those illustrated not intended to be limiting.




The elongated channel guides


42


,


44


are joined by the transverse profiled web


40


. The web


40


extends from the inner wall section


46


of the interior channel guide


42


to the inner wall section


46


of the exterior channel guide


44


and is preferably in a spaced condition forward from the rear walls


50


of the channel guides


42


,


44


. A jamb anchor


60


of suitable configuration extends rearwardly from the profiled web


40


for receipt by a side jamb anchor receiver


62


so to securably and directly mount the jamb liner


32


, and the window jamb component assembly


30


thereby, to the side jamb


16


(FIGS.


2


A and


2


B).




The profiled web


40


defines three sequentially aligned component carrying recesses


64


,


66


,


68


: an inner weather stripping recess


64


adjacent the interior elongated channel guide


42


; a jamb filler recess


66


; and, an outer weather stripping recess


68


adjacent the exterior elongated channel guide


44


. As the weather stripping recesses


64


,


66


,


68


are adjacent the elongated channel guides


42


,


44


, respectively, they are separated, and in part defined by a substantial portion of the inner wall sections


46


of the opposing walls


46


and


48


of the channel guides


42


,


44


. These inner wall sections


46


, in combination with the profile of the profiled web


40


immediately adjacent the inner wall sections


46


, form an elongated groove


70


for receiving a protruding anchor


82


integral to a frame weather stripping member


78




a


,


78




b


, best shown in

FIGS. 2A and 2B

. Forwardly extending spaced web flanges


72


separate the jamb filler recess


66


from the frame weather stripping recesses


68


and


64


. These web flanges


72


include contoured tabs


74


at their free ends for engaging and retaining jamb filler


76


.




Referring again to

FIGS. 2A and 2B

, the window jamb component assemblies


30


, both the upper


34


and lower


36


segments, respectively, are shown in cross section. The lower segment


36


of the component assembly is shown on the left, cooperating with the interior sash assembly


22




b


whereas the upper segment


34


of the component assembly


30


is shown on the right, cooperating with the exterior sash assembly


22




a.






The lower segment


36


of the longitudinally elongated jamb liner


32


carries a jamb cover


76




b


in the jamb filler recess


66


and a weather stripping member


78




a


in the inner weather stripping recess


64


. The unoccupied outer weather stripping recess


68


of the profiled web


40


is hidden or disguised by the jamb filler


76


which provides a uniformly clad surface for the window jambs


16


. In this lower jamb liner segment


36


, the jamb cover


76




b


is configured to form a substantially uniformly clad surface


76




c


which transversely extends from the inner weather stripping member


78




a


to the inner wall section


46


of the outer channel guide


44


. Cover flanges


77


, configured to cooperatively engage with the web flanges


72


, extend from the underside of the jamb cover


76




b.






The jamb cover


76




b


is intended to match in appearance the exterior trim of the double hung window


10


. Typically, an aluminum construction is desirable, although not so limited. The critical consideration is that a neat, clean, high quality, low maintenance finish is provided consistent with the exterior finish of the window


10


.




The upper segment


34


of the longitudinally elongated jamb liner


32


carries a jamb filler


76




a


in the jamb filler recess


66


and a weather stripping member


78




b


in the outer weather stripping recess


68


. The unoccupied inner weather stripping recess


64


of the profiled web


40


is hidden or disguised, as in the lower segment, by the jamb filler


76




a


which provides a uniform wood or planar exterior finish surface


76




d


for the window jambs


16


. In this upper jamb liner segment


34


, the jamb filler


76




a


is preferably configured to substantially conform to the jamb filler recess


66


and cooperate with the web flanges


72


of the profiled web


40


. The upper jamb filler


76




a


has a substantially planar exterior finish surface


76




d


which transversely extends from the outer weather stripping member


78




b


to the inner wall section


46


of the inner channel guide


42


.




The upper jamb filler


76




a


is intended to match in appearance the interior trim of the double hung window


10


. Typically, a wood construction is desirable, although not so limited. The critical consideration is that a neat, clean, high quality, low maintenance finish is provided, consistent with the interior finish of the window


10


.




The jamb liner


32


of the window jamb component assembly


30


is generally constructed of an extruded plastic material, for example polyvinyl chloride or other thermoplastic elastomer, that is at preferably semi-rigid. The jamb liner


32


materials are not particularly critical, and other fabrications known to those skilled in the art are likewise suitable, tending to be application specific.




In addition to the enhanced aesthetics provided by the jamb component assembly


30


, improved sliding and sealing of the sash assemblies


22




a


,


22




b


is realized with the aforementioned jamb component assembly


30


weather stripping configuration.




During translation of either of the sash assemblies


22




a


,


22




b


, the assemblies


22




a


,


22




b


move off of their weather strip seal (FIG.


2


), with the friction therebetween greatly reduced throughout the range of translation (e.g., as interior sash assembly


22




b


moves in an upward direction, from the lower


36


to upper


34


segment of the jamb liner


32


, the frictional force attributable to the weather stripping is attenuated). Extending the inner weather stripping member


78




a


in the inner weather stripping recess


64


upward to an elevation substantially coterminous with the upper extent of the check rail seal


39


while at the same time extending the outer weather stripping member


78




b


in the outer weather stripping recess


68


downward to an elevation coterminous with the lower extent of the check rail seal


39


(

FIG. 3

) insures formation of a barrier against undesirable fluid flow throughout the elongation of the jamb liner


32


when the sash assemblies


22




a


,


22




b


are fully closed. The key here is that there be some degree of communication between the upper and lower weather stripping members via the check rail


39


as shown, or by alternate means.




The frame weather stripping members


78


for sealingly engaging the sash assemblies


22




a


,


22




b


preferably includes an elongated foam element


80


(e.g., urethane) carried by an anchor structure


82


(FIG.


4


). The base of each weather stripping member


78




a


,


78




b


is generally configured for conformity with the weather stripping recesses


64


,


68


as shown. Alternate arrangements for frame weather stripping


78




a


,


78




b


, known to those skilled in the art, are likewise contemplated for use in the jamb component assembly


30


of this invention.




Referring finally to

FIG. 5

, a fragmented perspective view of a window jamb


16


equipped with the window jamb component assembly


30


is shown, with the inner sash assembly


22




b


removed. Here the stile cladding


24


of the interior sash assembly


22




b


abuts the check rail seal


39


, which as discussed above, links the upper (i.e., outer)


78




b


and lower (i.e., inner)


78




a


weather stripping members. As such, when the sash assemblies


22




a


,


22




b


are fully closed, all horizontal weather seals


81


, check rail seal


39


and weather stripping members


78




a


,


78




b


are in communication with the vertical weather seals


78




a


,


78




b


to prevent undesirable fluid flow.




It should be noted that the window jamb component assembly


30


, the window sash position maintainer (which was incorporated herein by reference), and the sash retention member actuator (which was incorporated herein by reference) can be used alone or in combination with one another, and is considered within the scope of the invention. For instance, a window structure


200


, similar to that shown in

FIG. 1

, could include the window jamb component assembly


30


and the sash retention member actuator


100


, where the balance tube


54


described above corresponds with the balance tube shown and discussed in the patent application entitled SASH RETENTION MECHANISM ACTUATOR. Alternatively, a window structure


200


could include the window jamb component assembly


30


and/or the sash retention member actuator


100


, and/or the window sash position maintainer, disposed generally at


110


, where the window sash position maintainer is discussed further in copending application entitled WINDOW SASH POSITION MAINTAINER, having Ser. No. 09/328,085.




It will be understood that this disclosure, in many respects, is only illustrative. Changes may be made in details, particularly in matters of shape, size, material, and arrangement of parts without exceeding the scope of the invention. Accordingly, the scope of the invention is as defined in the language of the appended claims and their equivalents.



Claims
  • 1. A window assembly, comprising:upper and lower sash assemblies; opposing side jambs; window jamb component assemblies securing the upper and lower sash assemblies to the opposing side jambs, the window jamb component assemblies each including a jamb liner having sash assembly carriages spaced apart by a profiled web; each profiled web defining an inner weather stripping recess, a jamb filler recess, and an outer weather stripping recess; jamb fillers each retained by a respective one of the jamb filler recess; and frame weather stripping sealingly engaged with each upper and lower sash assemblies.
  • 2. The window assembly as recited in claim 1, further comprising check rail seals secured to said jamb liners, wherein the frame weather stripping includes inner weather stripping members within the inner weather stripping recesses and outer weather stripping members within the outer weather stripping recesses, the inner weather stripping members extend to a position coterminous with the check rail seals.
  • 3. The window assembly as recited in claim 2, wherein the outer weather stripping members extend to a position coterminous with the check rail seals.
  • 4. The window assembly as recited in claim 1, further comprising means for anchoring said frame weather stripping.
  • 5. The window assembly as recited in claim 1, wherein the jamb fillers each have has a substantially planar exterior finish.
  • 6. The window assembly as recited in claim 1, further comprising means for guiding the upper and lower sash assemblies.
  • 7. The window assembly as recited in claim 1, wherein an unoccupied portion of each the outer weather stripping recesses is hidden by a respective one of the jamb fillers, and an unoccupied portion of the inner weather stripping recess is hidden by the jamb filler.
  • 8. A window assembly, comprising:upper and lower sashes; opposing side jambs; window jamb component assemblies securing the upper and lower sashes to the opposing side jambs each, window jamb component assemblies including a jamb liner having sash carriages spaced apart by a profiled web; each profiled web defining an inner weather stripping recess, a jamb filler recess, and an outer weather stripping recess; and jamb fillers each retained by of a respective one of the sashes the jamb filler recess, the jamb filler including a means for uniformly and continuously cladding at least one of each inner weather stripping recess, of a respective one of said window jamb component assemblies jamb filler recess and outer weather stripping recess.
  • 9. The window assembly as recited in claim 8, wherein portions of the inner weather stripping recesses are unoccupied, and the unoccupied portions are hidden by the jamb fillers.
  • 10. The window assembly as recited in claim 8, wherein each jamb filler includes jamb flanges extending therefrom.
  • 11. The window assembly as recited in claim 10, wherein for each window jamb component assembly the profiled web includes web flanges that engage the jamb flanges, where the web flanges at least partially separate the jamb filler recess from the inner and outer weather stripping recesses.
  • 12. The window assembly as recited in claim 8, further comprising for each window jamb component assembly a check rail seal secured to the jamb liner, and frame weather stripping disposed within the inner and outer weather stripping recesses, wherein the frame weather stripping includes inner and outer weather stripping members, the inner weather stripping member extends to a position coterminous with the check rail seal, and the outer weather stripping member extends to a position coterminous with the check rail seal.
  • 13. The window assembly as recited in claim 8, wherein each window jamb component assembly the jamb filler recess includes an upper jamb filler recess and a lower jamb filler recess, and the jamb filler held by the lower jamb filler recess matches an exterior trim of the window assembly.
  • 14. The window assembly as recited in claim 8, wherein for each window jamb component assembly the jamb filler recess includes an upper jamb filler recess and a lower jamb filler recess, and the jamb filler held by the upper jamb filler recess matches an interior trim of the window assembly.
  • 15. A window assembly comprising:at least one jamb; sash assemblies; a window jamb component assembly securing the sash assemblies to the at least one jamb; the window jamb component assembly including a jamb liner having a profiled web, the profiled web including an inner weather stripping recess, a jamb filler recess adjacent to the inner weather stripping recess, and an outer weather stripping recess adjacent to the jamb filler recess; and a jamb filler retained by the jamb filler recess.
  • 16. The window assembly as recited in claim 15, further comprising frame weather stripping disposed within at least a portion of the inner and outer weather stripping recesses.
  • 17. The window assembly as recited in claim 16, wherein an unoccupied portion of the outer weather stripping recess is hidden by the jamb filler.
  • 18. The window assembly as recited in claim 15, wherein the jamb liner has upper and lower segments.
  • 19. The window assembly as recited in claim 18, wherein the upper and lower segments are generally delimited by a check rail seat.
  • 20. The window assembly as recited in claim 15, further comprising means for guiding the sash assemblies.
  • 21. The window assembly as recited in claim 15, further comprising a jamb anchor extending rearwardly from the profiled web.
  • 22. A window assembly, comprising:upper and lower sashes; a side jamb; a window jamb component assembly securing the upper and lower sashes to the side jamb, the window jamb component assembly including sash carriages spaced apart by a jamb filler recess; a first jamb filler retained by the jamb filler recess to provide a uniform clad surface extending between side walls of the jamb filler recess.
  • 23. The window assembly as recited in claim 22, wherein the jamb filler recess includes an upper segment and a lower segment and the first jamb filler is retained by the upper segment.
  • 24. The window assembly as recited in claim 22, further comprising a second jamb filler retained by the lower segment of the jamb liner.
  • 25. A window assembly, comprising:upper and lower sashes each having a sash length; a side jamb; a window jamb component assembly securing the upper and lower sashes to the side jamb, the window jamb component assembly including a jamb liner including a jamb filler recess having an upper segment and a lower segment; a first jamb filler retained by the jamb filler recess in the upper segment; and a second jamb filler retained by the jamb filler recess and each having a length substantially the same as a respective one of said sashes in the lower segment.
  • 26. The window assembly as recited in claim 25, further comprising a check rail seal secured to the jamb liner between the upper segment and the lower segment.
  • 27. A window assembly, comprising:upper and lower sashes each having a sash length; a side jamb with interior finish elements; a window jamb component assembly securing the upper and lower sashes to the side jamb, the window jamb component assembly including sash carriages spaced apart by a jamb filler recess; a first jamb filler retained by the jamb filler recess, the first jamb filler including a clad and the first jamb filler having a length substantially the same as a respective one of the sashes surface that matches the interior finish elements of the side jamb surface that is similar in appearance to the interior finish elements of the side jamb and the first jamb filler having a length substantially the same as a respective one of said sashes.
  • 28. The window assembly as recited in claim 27, wherein the side jamb includes exterior finish elements, and further comprising a second jamb filler retained by the jamb filler recess, the second jamb filler including a clad surface that matches the exterior finish elements of the side jamb.
  • 29. The window assembly as recited in claim 28, wherein the second jamb filler and the exterior finish elements on the side jamb are aluminum.
  • 30. The window assembly as recited in claim 28, wherein the first jamb filler and the interior finish elements on the side jamb are wood.
  • 31. The window assembly as recited in claim 28, wherein the jamb filler recess includes an upper segment and a lower segment and the first jamb filler is retained by the lower segment and the second jamb filler is retained by the upper segment.
  • 32. A window assembly, comprising:upper and lower sashes; a side jamb; a window jamb component assembly securing the upper and lower sashes to the side jamb, the window jamb component assembly including sash carriages spaced apart by a jamb filler recess, the sash carriages including interior walls having front edges; and a jamb filler retained by the jamb filler recess, the jamb filler including a planar clad surface that is aligned with the front edges of the interior walls.
  • 33. The window assembly as recited in claim 32, wherein the planar clad surface covers a portion of the jamb filler recess.
RELATED APPLICATIONS

This patent application is a continuation of U.S. patent application Ser. No. 09/459,141 filed Dec. 10, 1999, now issued as U.S. Pat. No. 6,305,126 which is incorporate herein by reference. This patent application is related to pending patent applications entitled: WINDOW SASH POSITION MAINTAINER, Ser. No. 09/328,085, filed Jun. 8, 1999, now U.S. Pat. No. 6,141,913; and ACTUATOR FOR WINDOW SASH RETENTION MECHANISM, Ser. No. 09/450,648, filed Nov. 23, 1999, now U.S. Pat. No. 6,588,150, each of which is assigned to a common assignee. The related applications arc incorporated herein by reference in their entirety.

US Referenced Citations (18)
Number Name Date Kind
926735 Gould Jul 1909 A
1038160 Leonard Sep 1912 A
2593239 Anderson Apr 1952 A
2595419 Smith May 1952 A
2843233 Walsh Jul 1958 A
2912077 Walsh Nov 1959 A
2943345 Ammerman Jul 1960 A
3145433 Jones Aug 1964 A
3676956 Taylor et al. Jul 1972 A
4583639 Fedick et al. Apr 1986 A
4726148 Tix Feb 1988 A
4891921 Governale Jan 1990 A
5265308 May et al. Nov 1993 A
5414962 Forbis et al. May 1995 A
5515652 Klimek May 1996 A
5566507 Schmidt et al. Oct 1996 A
5934031 DeNormand Aug 1999 A
6122864 Martin Sep 2000 A
Foreign Referenced Citations (4)
Number Date Country
0220004 May 1958 AU
220004 May 1958 AU
0605391 Sep 1960 CA
605391 Sep 1960 CA
Continuations (1)
Number Date Country
Parent 09/459141 Dec 1999 US
Child 09/941456 US