Apparatus and method relating to a quick attachment and release goggle mounting system

Information

  • Patent Grant
  • 6708340
  • Patent Number
    6,708,340
  • Date Filed
    Friday, November 17, 2000
    23 years ago
  • Date Issued
    Tuesday, March 23, 2004
    20 years ago
Abstract
System and methods for mounting a goggle to a helmet. The systems comprising a retaining post. The retaining post has a distal portion that has a portion with a greater cross section than the remainder of the retaining post. The retaining post may be fastened to a helmet brim by a screw type fastener. The portion having a greater cross section may be a resilient serrated washer secured to an end of the retaining post. The system further comprises a strap is provided with a first end that is attachable to a goggle and a second end with an opening therein. The opening is sized to pass interferingly over the greater cross section portion of the distal portion of the retaining post.
Description




TECHNICAL FIELD




The present invention relates to quickly attaching a goggle to and releasing a goggle from a helmet.




BACKGROUND




Goggles have been available in the market place for many years. Goggles can be attached to a user's headwear such as a fireman's or construction worker's helmet. Other goggles are used by sports enthusiasts such as motorcycle riders, pilots, skydivers and skiers.




For some uses, such as a prolonged activity like skiing, a goggle can be attached to and detached from the helmet at the leisure of the user. Since the user knows when a particular activity will begin, and knows that he or she will most likely wear the goggles throughout the duration of the event or activity, the need for a quickly attachable and releasable goggle is minimal.




For other uses, such as fighting fires, there is a need to quickly attach and release the goggles, often when the user is busy doing something else and has only one hand free. Some previous mounting systems have required two hands to join two mating parts together. Some other systems require the dexterity of an un-gloved hand to attach or release the goggle from the helmet. In emergency scenarios, removing one's gloves can be a waste of precious time, or dangerous if in the vicinity of sharp or burning objects. Also, a goggle is often desired as eye protection by fire fighters and rescue personnel because a face shield alone does not provide the level of eye protection required in an environment filled with smoke or airborne debris.




Therefore, there is a need for a goggle mounting system that permits quick attachment to and release of a goggle from the helmet with one hand and while wearing gloves.




SUMMARY OF THE INVENTION




The present invention provides system, and methods for quickly attaching a goggle to a helmet and releasing the goggle from the helmet. Such systems and methods are desirable in activities of uncertain duration or which may involve abrupt changes in the type of activity or physical environment, such as fire fighting and emergency rescue. The present invention is simple to use, can be used with a helmet having a face shield, and can be readily used by someone wearing gloves. It also permits quick and simple assembly during manufacture of the helmet or field retrofit.




In one aspect of the invention a goggle mounting system is provided comprising a retaining post that is mounted directly to a section of helmet, such as the brim. The retaining post has a portion that is of a greater cross section that the remainder of the post. A strap that is attachable to a goggle at one end has an opening in the other end, such as a grommet. The grommet is sized to pass interferingly over the greater cross section portion of the retaining post. The greater cross section portion may be a resilient member, such as a serrated plastic washer, that deforms upon passage of the grommet over it, or conversely, in an alternative embodiment, the greater cross section portion may be comprised of a relatively inflexible material, such as a plastic bead, and the grommet would be comprised of a resilient material so that it can deform, or stretch, upon passage over it. The post is mounted to the helmet by a variety of well known fasteners.




A particular embodiment of the invention comprises a substantially cylindrical retaining post with a substantially axial hole through it. A resilient washer, such as a serrated washer, is mounted to one end of the retaining post by a fastener. The same fastener may be sued to secure the retaining post to the helmet, or a second fastener may be used to secure the retaining post.




Another aspect of the invention is the combination of the retaining post and strap described above, and a goggle. A further embodiment includes a helmet.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1A

is an view of the goggle mounting system in use on a firefighter's helmet, which shows in part an exploded view of a bracket body.





FIG. 1B

is a side view of the bracket body depicted in FIG.


1


A.





FIG. 2A

is a perspective view of an alternative embodiment of the bracket body depicting a curved retaining post and a mounting stud.





FIG. 2B

is a top view of the bracket body depicted in FIG.


2


A.





FIG. 3

is a side view of another alternative embodiment of the bracket body depicting a bracket body with a snap member thereon, the bracket body being adaptable to flush mount to the side of a helmet without a brim.





FIG. 4

is perspective view of another embodiment of the bracket body depicting a slotted retaining post with flexible fingers.





FIG. 5A

is an exploded side view of another embodiment of a retaining post shown mounted directly to a section of a helmet.





FIG. 5B

is a an exploded side view of the retaining post of

FIG. 5



a


employing an alternative mounting method.





FIG. 5C

is an exploded side view of the retaining post showing an alternative structure for aiding in retaining a goggle strap thereon.











DETAILED DESCRIPTION OF THE INVENTION




The present invention provides a system and method for quickly attaching a goggle to a helmet and removing a goggle from the helmet. The invention will be described principally as it applies to a type of helmet commonly worn by fire fighters and emergency rescue personnel. However, it is useable on a wide variety of helmets, preferably with a brim, but as will be discussed below, the system is adaptable to brim-less helmets as well. The invention is advantageous because it permits a user to easily and quickly secure his or her goggles to the helmet and to easily and quickly detach the goggles from the helmet, even if the user is wearing gloves or if the helmet has a face shield.




Referring to

FIGS. 1A and 1B

,

FIG. 1A

shows one embodiment of the present invention in use with a fireman's helmet, while

FIG. 1B

shows a side view of the bracket body of this embodiment shown in FIG.


1


A. In

FIG. 1A

, a fire fighter


10


is shown wearing a helmet


12


. The helmet has a brim


14


surrounding the crown


16


. Mounted to the crown


16


is a face shield


17


which can be pivoted downward as desired. The fire fighter


10


is wearing a goggle


30


attached to a strap


34


. The strap has a first strap end


32


that is adapted for attachment to the goggle


30


. The second strap end


35


includes a grommet


36


with an opening


37


. The strap


34


is attached to a bracket body


40


by passing the grommet


36


over a resilient washer


50


onto a retaining post


46


. The sizes of the opening


37


and the resilient washer


50


are chosen so that there is relative interfering passage of the two elements when the goggle is attached or released.




A bracket body


40


is shown mounted to helmet brim


14


. The bracket body


40


is the entire structure that is mounted to the helmet and to which the strap


34


is attached. The bracket body


40


includes a retaining post


46


which extends in a first direction


54


. The first direction


54


generally points away from the helmet when the bracket body


40


is installed on the helmet brim


14


. The retaining post


46


has a distal portion


48


with a hole


49


therein. By definition, the distal portion includes a portion of the retaining post


46


displaced from the base end


53


of the retaining post


46


where its base end


53


joins a mounting bracket


41


. A resilient serrated washer


50


is fastened to the retaining post


46


by screw


52


. The mounting bracket


41


, which extends in a second direction


56


, generally points towards the helmet. The mounting bracket


41


has a slot


44


establishing a first slot wall


45


and a second slot wall


43


. The slot


44


receives a portion of the helmet brim


14


between the slot walls


45


and


43


and is secured to the brim by tightening set screws


42


which pass through the mounting bracket


41


and the first slot wall


45


. The tightening of the set screws


42


essentially clamps the brim


14


between the set screws


42


and the second slot wall


43


. An identical bracket body can be attached to the brim


14


on the other side of the helmet


12


, but is not shown in this view. The bracket body


40


can be constructed of a molded plastic material. Other materials and forming methods are useful to form such a bracket such as metal machining or casting.




When a fire fighter needs to use the goggle, he simply pushes the grommet opening


37


over the resilient serrated washer


50


. The grommet opening


37


and the washer


50


are sized to permit interfering passage of the washer


50


and the grommet


36


. “Interfering passage” refers to the relative displacement of the washer


50


and the grommet


36


, wherein the largest cross section dimension of the washer


50


is smaller than the opening


37


in the grommet


36


. The dimensional differences causes there to be interference between the washer


50


and the grommet


36


. However, the inherent resiliency of the washer


50


allows it to deform sufficiently to permit passage of the grommet


36


.




The primary tension in the strap


34


is approximately perpendicular to the axis of the post, so it is not necessary for the strap to be fixed in place by some other means that may require greater effort, dexterity, or two hands to attach the strap


34


to the bracket body


40


. When the fire fighter is ready to remove the goggle, he simply grasps the strap


34


near the grommet


36


and pulls generally outwardly or away from the brim


14


; essentially in the same direction as first direction


54


. There is no need for any substantial displacement of the grommet


36


perpendicular to the first direction


54


. Therefore, the strap


34


can be attached or removed in a single smooth motion.




The bracket body


40


can be attached to the helmet


12


at any place along the brim


14


that suits the wearer of the helmet by simply tightening the set screws


42


. As long as the retaining post


46


generally points sideways away from the helmet or somewhat rearwardly and/or upwardly the system will retain the goggle until the wearer pulls the grommet


34


off the post


46


. If the bracket body


40


were mounted so that the retaining post


46


pointed somewhat towards the front of the helmet, the interference of the grommet


36


and the resilient washer


50


will still hold the grommet


36


in place unless the tension in the strap is high enough to overcome the resistance presented by the interfering fit of the grommet


36


and the resilient washer


50


.




The resilient washer


50


does not need to be a washer of the serrated type shown. The resilient washer


50


may be replaced by any resilient member or device that, when incorporated as part of the bracket body, either by unitary formation or later attachment, serves the function of permitting interfering passage of the grommet


36


. The resilient member may be a protrusion formed as part of the post or attached to it as by the screw


52


, glue, or other method of attachment. The resilient washer, or other resilient member, establishes a portion of the retaining post


46


having a greater cross section than the remainder of the retaining post


46


. This greater cross section portion, which in the case of this embodiment is resilient washer


50


, need not be at the very end of retaining post


46


as shown in FIG.


1


B. It could be anywhere along the length of the distal portion


48


sufficient to allow passage of the grommet


36


past it and still permit the grommet to seat along the remainder of the retaining post


46


where the cross section is approximately equal to or smaller than the size of the opening


37


.




The greater cross section portion of the retaining post


46


can also be a non-resilient material or device, and the grommet of a resilient material, wherein the sizing of the respective elements still permits interfering relative passage. For example, the greater cross section portion may simply be a sphere-like shape molded on the end of the retaining post


46


. The grommet can be comprised of a resilient material, such as plastic, that will stretch or deform enough to pass over the bead. In another variation, both the grommet and the greater cross section portion may be comprised of relatively resilient material so that both elements deform upon passage of the grommet over the distal portion of the retaining post. Additionally, the grommet may be replaced by a shape or device having sufficient resiliency or flexibility to deform when forced over the distal portion


48


of the retaining post


46


. An alternative to the grommet shown can be as simple as a reinforced hole, much like a button hole, sewn into the second strap end


35


, or a planar plastic tab mounted at the second strap end


35


that has a slit or other passage through it that will permit relative interfering passage of the greater cross section portion of the retaining post


46


. In yet another variation, a hook-like structure can be mounted at the second strap


35


end that will pass around the retaining post, but is sized to not permit it to slide past the part of the retaining post including the greater cross section, namely, the distal portion. Another device that can serve the same function as a hook, is a hoop-like fastener of the type commonly use on the straps of a workman's coveralls to hook onto a button at the front of the coveralls.




Referring to

FIG. 2A

, an alternative embodiment of the bracket body


40


is depicted. In this embodiment, the bracket body


40


does not have a mounting bracket


41


or a slot


44


as described previously. Instead, it is has a mounting stud


60


with a hole


62


through it. This configuration of bracket body


40


can be mounted to a brim by passing a fastener, such as screw


64


, through an appropriately sized hole


65


in the helmet brim


14


and hole


62


, then tightening nut


66


to secure the assembly. In this embodiment, as shown in

FIG. 2A

, the retaining post


46


can be bent or curved along a portion of its axial length


68


in a manner so that when it is attached to the brim


14


, the retaining post


46


curves generally rearwardly and/or upwardly. The length of the curved portion of the retaining post


46


can vary, and it may incorporate the full length of the retaining post


46


. The net effect of curving the post is to re-define the first direction


54


. As indicated in

FIG. 2B

, the first direction


54


originates at the base


53


of the retaining post


46


and runs out through the extreme distal end


51


of the retaining post


46


. Accordingly, an angle


69


is formed between the first direction


54


and the second direction


56


. In this approach, having a resilient member, such as washer


50


, is not necessary. The grommet opening


37


can be sized to freely pass over the distal portion


48


. The strap


34


will tend to stay in place when the grommet


36


(not shown) is placed on the post, because of the tension in the strap


34


, until removed by an outward force, with a nominal rearward and/or upward component, applied to the strap


34


to remove the grommet


36


from the curved retaining post


46


.




As shown in

FIG. 2B

, an alternative to curving the retaining post is to simply set the retaining post


46


at an angle


69


that is substantially less than 180 degrees relative to the mounting bracket


41


as defined by the first direction


54


, and the second direction


56


, such that the retaining post


46


is disposed generally rearwards and/or upwardly (i.e., away from the direction of the tension force imparted by strap


34


). (Also, note that the bracket body


40


shown in

FIG. 2B

includes mounting bracket


41


instead of mounting stud


60


shown in FIG.


2


A. However, the two different structures for mounting the bracket body


40


to the helmet can be interchanged with the various retaining post configurations.) In this way the retaining post can achieve a generally rearward and/or upward angle and retain the strap in much the same manner as discussed previously in relation to the curved retaining post embodiment. Of course the angle between the first direction


54


and second direction


56


can be essentially equal to 180 degrees and the bracket body can be canted slightly during installation to achieve a somewhat rearward pointing retaining post to again retain the strap as just discussed. It should be noted that a single bracket body formed with an angle of less than 180 degrees between the first direction


54


and the second direction


56


would result in an asymmetrical installation unless a mirror image bracket body were formed. In other words, mirror image, or left and right hand, bracket bodies, might be used depending on the method of mounting to the helmet and any requirement that the installation be symmetrical. Likewise, depending on how the straps are adapted to attach to the goggle, there may be a requirement for mirror image straps.




Another alternative embodiment is shown in FIG.


3


. This arrangement has the advantage of being mountable to a helmet without a brim. A hole


70


through the center of bracket body


40


is used for attachment to the helmet crown


16


(helmet not shown) by a fastener such as a screw, rivet or glue. The bracket body


40


does not include a mounting bracket


41


or a mounting stud


60


as described above. Instead of employing a retaining post and grommet configuration as described above, this embodiment utilizes a first snap member


74


and a second snap member


76


. First snap member


74


extends in the first direction


54


and is either attached to the bracket body


40


or formed as an integral part of the bracket body


40


. The mating second snap member


76


is attached to the second strap end


35


. The mating snap members can be of a variety of well known devices for accomplishing this type of function. Other mounting methods such as using mounting bracket


41


or mounting stud


60


as discussed above and shown in

FIGS. 1A and 2A

would work in this embodiment for use on brimmed helmets.




Yet another embodiment is shown in FIG.


4


. In this embodiment, the retaining post


46


is separated along a portion of its length substantially parallel to its axis. Two fingers


47




a


and


47




b


are thus formed. The distal portion


48


of the retaining post


46


is sized to interfere with passage of the grommet


36


(not shown) over the distal portion


48


. The fingers


47




a


and


47




b


are designed to flex substantially towards each other to the extent necessary to allow passage of the grommet


36


over the distal portion


48


. Other variations of this approach are possible that might include more than two fingers.





FIG. 5A

depicts an embodiment comprising retaining post


46


and its associated structures wherein the retaining post


46


is directly mounted onto the helmet. The hole


49


passes through the retaining post


46


substantially in an axial direction from a first post end


80


to a second post end


82


. The first fastener


84


, such as a machine screw, is of a length sufficient to pass through the resilient member


50


, such as a serrated washer comprised of a flexible material, through the retaining post


46


, through a section of brim


14


where it is then engaged by a second fastener


86


, such as a nut. The entire assembly is secured by tightening the fasteners


84


and


86


.





FIG. 5B

is a variation on the embodiment depicted in

FIG. 5



a


. In this embodiment the first fastener


84


is used just to fasten resilient member


50


to first post end


80


. The first fastener


84


is of a type that will frictionally engage the material of retaining post


46


surrounding hole


49


, thus securing the resilient member


50


to the first post end


80


. The second fastener


86


is used to secure the retaining post


46


to a section of the brim


14


by frictional engagement of the second fastener


86


with the material of the retaining post


46


surrounding hole


49


at a second post end


82


. The fasteners


84


and


86


may be screws bearing threads designed to engage a softer material much like a wood screw is designed to frictionally engage wood. Such a choice of fasteners also allows for releasing the retaining post


46


from the brim


14


if replacement or repair is required. The fasteners could also be of a type that are not intended for removal, such as a bonded rivet. The resilient member


50


can be fastened to the first post end


80


by some other means, such as an adhesive, or it can be formed as an integral part of the retaining post


46


such as by a plastic molding process. Also, the hole


49


need not pass completely through the retaining post


46


. Although not shown, there may be two or more holes passing substantially axially part way into the retaining post from the ends


80


and


82


.





FIG. 5C

depicts another embodiment wherein the retaining post


46


bears on the distal portion


48


a bead


88


. The bead


88


may formed as an integral part of retaining post


46


. Alternatively, the bead


88


could be a separate element with a hole passing through it and maybe secured in place by a fastener much like the resilient member


50


as described above in relation to FIG.


5


A. In this embodiment the bead


88


may not necessarily be comprised of a resilient material. In such a configuration, the opening


37


in the strap


34


is designed to deform when passing over the bead


88


. For instance, a grommet


36


may be selected from a material having flexible or deformable properties so it can stretch sufficiently to pass over the bead


88


.




The method of use of the systems described above is quite simple. Once the user retrieves the goggles from a storage location, such as a coat pocket or a pouch on an equipment belt, the user simply grasps either of the two straps


34


at or near the strap end


35


. The user then pushes the grommet


36


, or equivalent opening, past the resilient washer


50


, or its equivalent structures, into a seated position on the retaining post


46


. The user then grasps the other strap


34


, positions the goggles over their eyes and repeats the attachment step described above. The removal of the goggles is essentially the reverse of the previous discussion. Again, as described previously, some small amount of rearward and/or upwardly force may be required in addition to an outwardly directed removal force if the retaining post is pointed rearwardly and/or upwardly to some degree. Similar forces and motions may be required if the embodiments incorporating snap members, or other hook-like or hoop-like devices, or their equivalents, are employed as described above.




It will be apparent to those skilled in the art, that the systems and methods for retaining the strap upon the retaining post and bracket mounting approaches disclosed above may be combined to create embodiments not specifically described or shown in the drawings.




The terms set forth in this application are not to be interpreted in the claims as indicating a “means plus function” relationship unless the word “means” is specifically recited in a claim, and are to be interpreted in the claims as indicating a “means plus function” relationship where the word “means” is specifically recited in a claim. The term “having” in the claims is to be interpreted as meaning the claim may include additional elements that are not specifically recited in the claim.




It is to be understood that even though various embodiments and advantages of the present invention have been set forth in the foregoing description, the above disclosure is illustrative only, and changes may be made in detail, and yet remain within the broad principles of the invention. Therefore, the present invention is to be limited only by the appended claims.



Claims
  • 1. A goggle mounting system for quickly mounting a goggle to and releasing a goggle from a helmet, the system comprising:a retaining post capable of being directly mounted to the helmet, the retaining post configured to releasably engage a goggle and further having a greater cross section portion at a distal portion of the retaining post; and a strap having a first strap end able to attach to a goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over the greater cross section portion of the retaining post.
  • 2. The goggle mounting system of claim 1, wherein the opening is resilient.
  • 3. The goggle mounting system of claim 1, wherein the greater cross section portion of the retaining post comprises a resilient member attached to the retaining post.
  • 4. The goggle mounting system of claim 3, wherein the resilient member is a serrated washer.
  • 5. A goggle mounting system for quickly mounting a goggle to and releasing a goggle from a helmet, the system comprising:a retaining post capable of being directly mounted to the helmet, the retaining post further having a greater cross section portion at a distal portion of the retaining post; and a strap having a first strap end able to attach to a goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over the greater cross section portion of the retaining post, wherein the opening is a grommet.
  • 6. The goggle mounting system of claim 5, wherein the retaining post is configured to releasably engage the goggle.
  • 7. A goggle mounting system for quickly mounting a goggle to and releasing a goggle from a helmet, the system comprising:a retaining post capable of being directly mounted to the helmet, the retaining post further having a greater cross section portion at a distal portion of the retaining post; and a strap having a first strap end able to attach to a goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over the greater cross section portion of the retaining post, wherein the opening is a grommet comprised of a resilient material.
  • 8. The goggle mounting system of claim 7, wherein the retaining post is configured to releasably engage the goggle.
  • 9. A goggle mounting system for quickly mounting a goggle to and releasing a goggle from a helmet, the system comprising:a retaining post capable of being directly mounted to the helmet, the retaining post further having a greater cross section portion at a distal portion of the retaining post; and a strap having a first strap end able to attach to a goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over the greater cross section portion of the retaining post, wherein the retaining post is releasable from the helmet.
  • 10. The goggle mounting system of claim 9, wherein the retaining post is configured to releasably engage the goggle.
  • 11. A goggle mounting system for quickly mounting a goggle to and releasing a goggle from a helmet, the system comprising:a retaining post capable of being directly mounted to a helmet and having a resilient member mounted to a distal portion of the retaining post, at least one fastener passing into the retaining post in a generally axial direction for mounting the retaining post to a helmet; and a strap having a first strap end able to attach a goggle, and the strap having a second strap end having an opening therein, which is sized to pass interferingly over the resilient member.
  • 12. The system of claim 11, wherein the resilient member is a washer.
  • 13. The system of claim 12, wherein the washer is a serrated washer.
  • 14. The system of claim 11, wherein the retaining post is configured to releasably engage the goggle.
  • 15. A goggle system retaining post for attachment to a helmet, the retaining post comprising:a retaining post having a first post end, a second post end and at least one substantially axial hole therethrough; a resilient member mounted to the first post end; and the retaining post being directly mountable to a helmet by a first fastener passing into the at least one substantially axial hole at the second post end and thereby engaging a section of a helmet between the second post end and the first fastener.
  • 16. The retaining post of claim 15, wherein the first fastener is also used to mount the resilient member to the first post end by passing through the substantially axial hole and engaging a second fastener.
  • 17. The retaining post of claim 15, wherein a second fastener is used to mount the resilient member to the first post end.
  • 18. The retaining post of claim 15, wherein the resilient member is a resilient washer.
  • 19. The resilient washer of claim 18, wherein the resilient washer is a serrated washer.
  • 20. The retaining post of claim 15, wherein the retaining post is substantially cylindrical.
  • 21. The retaining post of claim 15, wherein the retaining post is configured to releasably engage the goggle.
  • 22. A goggle system retaining post for attachment to a helmet, the retaining post comprising:a substantially cylindrical retaining post having a first post end and a second post end, a substantially axial hole passing through the substantially cylindrical retaining post from the first post end to the second post end, a resilient serrated washer mounted to the first post end by a first fastener passing through the resilient serrated washer and the substantially axial hole, and a second fastener being engagable with the first fastener for securing the retaining post to a helmet at the second post end.
  • 23. The goggle system retaining post of claim 22, wherein the retaining post is configured to releasably engage the goggle.
  • 24. A goggle and goggle mounting system for mounting the goggle to a helmet comprising:a goggle; a retaining post configured to releasably engage a goggle and having a first post end and a second post end; a resilient member mounted on the post body at the first post end; the retaining post being directly mountable to a helmet at the second post end; and a strap having a first strap end able to attach to the goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over the resilient member.
  • 25. A helmet and goggle and goggle mounting system comprising:a helmet; a goggle; a retaining post configured to releasably engage a goggle and having a first post end and a second post end; a resilient member mounted on the post body at the first post end, the retaining post being directly mountable to a helmet at the second post end; and a strap having a first strap end able to attach to the goggle, and a second strap end having an opening therein, the opening being sized to pass interferingly over resilient member.
RELATION TO PREVIOUS APPLICATION

This application is a continuation-in-part of application Ser No. 09/668,527 filed on Sep. 21, 2000, now U.S. Pat. No. 6,490,729.

US Referenced Citations (6)
Number Name Date Kind
4686712 Spiva Aug 1987 A
4796308 Bourgeois Jan 1989 A
5291880 Almovist et al. Mar 1994 A
5347655 Garrett Sep 1994 A
5940891 Lane Aug 1999 A
6490729 Dondero Dec 2002 B1
Continuation in Parts (1)
Number Date Country
Parent 09/668527 Sep 2000 US
Child 09/715245 US