Combination engine compartment cover and privacy enclosure

Information

  • Patent Grant
  • 6681713
  • Patent Number
    6,681,713
  • Date Filed
    Wednesday, November 13, 2002
    22 years ago
  • Date Issued
    Tuesday, January 27, 2004
    20 years ago
Abstract
A combination engine compartment cover and privacy enclosure includes a frame member, which is rotatable about a pivot adjacent to an engine compartment access through a deck of a pontoon boat. The entire enclosure can rotate to a position to access the opening, or the enclosure can be used as a privacy enclosure. A top cover of the unit is also rotatable relative to the frame and has a support bracket attached to a back of the top cover, where the bracket is rotatable to an upright position, where a privacy curtain may be assembled around the enclosure by way of snap members.
Description




SUMMARY OF THE INVENTION




The objects of the invention have been accomplished by providing a pontoon boat, comprising a hull portion comprised of a deck portion, a plurality of elongate pontoons positioned below the deck portion, the hull portion further comprising an engine compartment positioned adjacent an end of the of the hull portion, and at least partially below the deck portion, defining an engine compartment opening through the portion. An inboard-outboard engine is positioned within the engine compartment with a drive portion extending outwardly and rearwardly of the hull portion for propelling the pontoon boat. An engine compartment cover assembly substantially surrounds the engine compartment opening, the engine compartment cover assembly being pivotally mounted to the pontoon boat at a position adjacent to an edge of the engine compartment. The engine compartment cover assembly comprises upstanding side walls and end walls, the end walls and side walls defining a frame member which surrounds the engine compartment. The engine compartment cover assembly further comprises a raised floor section attached to the frame member, and a top cover portion which is pivotally mounted to the frame member, the top cover portion has a privacy enclosure assembly attached to an underside thereof, movable between stowed and upright positions and which includes a privacy curtain which drapes downwardly in the upright position to define the privacy enclosure.




In the preferred embodiment of the invention, the frame member includes a door allowing entry therethrough and access to the raised floor. Preferably, the privacy enclosure assembly includes a curtain frame which is pivotally mounted to the top cover portion. The engine compartment cover assembly and the top cover portion are pivotally movable about horizontal and parallel axes. The top cover portion has a locking latch for lockably latching the top cover portion to the frame member. The frame member has first spring means for holding the frame member in an upright position, which are preferably comprised of gas assisted shocks. The top cover portion has second spring means to hold the top cover portion in an upright position, which are preferably gas assisted shocks. The curtain frame has third spring means to hold the curtain frame in an upright position, which are preferably comprised of gas assisted shocks.




Also in the preferred embodiment of the invention, the pontoon boat frame has an open end wall and also further comprises a lounge seat pivotally mounted to the deck portion from a front edge thereof, and which partially overlies the engine compartment opening. When the lounge seat and the engine compartment cover assembly are positioned against the deck, the lounge seat and the engine compartment cover assembly abut to enclose the engine compartment, and when the lounge seat and the engine compartment cover assembly are pivoted open the engine compartment is accessible.




Also preferably, the lower edge of the privacy curtain is attachable to the end walls and side walls to define the privacy enclosure.




In another aspect of the invention, a combination engine compartment cover and privacy enclosure assembly is provided, for positioning over an engine compartment of marine craft, where the engine compartment defines an opening through the deck of the marine craft for access to an engine. The assembly comprises a frame member comprised of side walls and end walls which upstand to at least partially surround the opening, the frame member being pivotally connectable to the deck of the marine craft, for pivotal movement between a first closed position where the frame member abuts the deck, and a pivotally raised position with the opening accessible. A raised floor member is attached to the frame member and extends substantially between the end walls and side walls. A top cover member is pivotally attached to the frame member at an upper edge of one of the end or side walls. A privacy enclosure assembly is attached to an underside thereof, movable between stowed and upright positions and which includes a privacy curtain which drapes downwardly in the upright position to define the privacy enclosure.




In the preferred embodiment, the frame member includes a door allowing entry therethrough and access to the raised floor. Also preferably, the privacy enclosure assembly comprises support arms pivotally attached to an underside of the top cover. The top cover and the support arms are pivotal to positions substantially vertical. The privacy enclosure assembly further comprises a privacy curtain support member attached to ends of the support arm, opposite the pivoted ends. The top cover pivots about a rear edge thereof, and the support arms pivot about a position adjacent a front edge of the top cover, whereby when the top cover and the support arms are pivoted into the open position, the privacy curtain support member is raised above the deck to a height substantially equal to the additive length of the top cover and the support arms. The privacy curtain attaches to the end walls and the side walls to define-the privacy enclosure, and preferably by way of snap members. Preferably, the privacy curtain support member is rectangular, and the privacy curtain, when attached to the end walls and the side walls, defines a substantially truncated pyramidal shape.




The assembly frame has an open front end wall and further comprises a lounge seat for pivotally mounting to the deck portion from a front edge thereof, and for partially overlying the engine compartment opening, such that when the lounge seat and combination engine compartment cover and privacy enclosure assembly are positioned against the deck, the lounge seat and the engine compartment cover assembly abut to enclose the engine compartment, and such that when the lounge seat and the engine compartment cover assembly are pivoted open the engine compartment is accessible.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a rear perspective view of the pontoon boat, partially fragmented, according to the preferred embodiment of the invention;





FIG. 2

is a top perspective view of the combination engine compartment cover and privacy enclosure;





FIG. 3

is a view similar to that of

FIG. 2

, showing the enclosure rotated open to view the engine compartment opening through the pontoon deck;





FIG. 4

is a rear perspective view of the combination engine compartment cover and privacy enclosure shown in

FIGS. 1 and 2

;





FIG. 5

is a rear perspective view of the combination shown in any of the

FIGS. 2 through 4

;





FIG. 6

is a view similar to that of

FIG. 5

, showing the top cover rotated to a fully open position;





FIG. 7

is a lower perspective view of the combination according to any of the

FIGS. 2 through 6

;





FIG. 8

is a top perspective view of the combination shown in any of the previous figures, showing the top cover rotated open, and showing the privacy curtain removed for clarity of the support structure;





FIG. 9

is a rear perspective view similar to that of

FIG. 8

, showing the privacy support arms rotated in the fully rotated upward position;





FIG. 10

is a perspective view similar to that of

FIG. 9

;





FIG. 11

is a perspective view similar to that of

FIG. 8

, showing the privacy curtain attached; and





FIG. 12

is a perspective view similar to that of

FIG. 11

, showing the privacy curtain support arms rotated in the fully upward position and with the curtain shown in the completed position.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring first to

FIG. 1

, a pontoon boat according to the present invention is shown at


2


, which generally includes a deck at


4


having a plurality of pontoons


6


attached beneath the deck


4


for flotation of the pontoon boat, and the pontoon boat


2


further comprising a combination engine compartment and privacy enclosure shown generally at


10


.




As best shown in

FIGS. 3 and 6

, the combination engine compartment cover and privacy enclosure


10


generally comprise a rotatable frame member


12


, which overlies an opening


14


through deck


4


, and which includes a top pivotable cover member shown best in

FIG. 6

as reference numeral


16


. Also shown best in

FIG. 6

, a privacy enclosure structure is shown generally at


18


and will be described in greater detail herein. As shown in either of

FIG. 3

or


6


, a rotatable seat is also shown at


20


, which is preferably also pivotable relative to deck member


4


and which abuts a front edge of the combination engine compartment cover and privacy enclosure


10


.




With reference now to

FIGS. 3 through 7

, frame member


12


will be described in greater detail. With reference to

FIGS. 3 and 6

, frame member


12


includes a plurality of U-shaped channel members, for example, front channel member


22


, side channel member


24


, rear channel member


26


, and right-side channel member


28


. As best shown in

FIG. 7

, rigidifying posts are positioned intermediate the U-shaped frame members, for example, post


32


is shown extending between individual legs of U-shaped frame member


24


, post


34


is shown extending between legs of U-shaped frame member


28


, and post


36


is shown extending between legs of U-shaped frame members


28


and


22


. With reference still to

FIG. 7

, a subframe is shown for a raised floor, including a plurality of horizontally and transversely extending support posts


40


,


42


,


44


, and


46


, which are attached to longitudinally extending posts


48


(only one of which can be viewed in FIG.


7


). The horizontally extending posts


40


-


48


support a raised floor member


50


.




Furthermore, the enclosure


10


includes side panel members


60


covering U-shaped member


24


, end panel member


62


covering U-shaped member


26


, and side panel member


64


covering U-shaped channel member


28


. An access door


70


is hingedly mounted at


72


to an edge of channel member


28


as shown best in FIG.


7


and is movable between a closed position shown in FIG.


6


and an open position shown in

FIG. 7

to access the raised floor


50


. It should be appreciated that a latch structure such as


74


is included to latch the door in a fully closed position, and it should be appreciated by those skilled in the art.




With respect now to

FIGS. 3 and 4

, the enclosure


10


is shown mounted in a position substantially covering the engine compartment opening


14


, where the enclosure


10


is pivotally mounted by way of hinge


80


, which is along the rear edge of enclosure


10


, which also happens to correspond with the rear edge of the pontoon boat


2


. As also shown in

FIG. 4

, the area below horizontal posts


40


-


46


forms a compartment area


82


, which can cover any of the engine components which extend or upstand higher than deck member


4


. This can include air intake hoses (not shown) which are attached to either or both of air vents at


84


which extend through end wall


62


. With reference still to

FIG. 4

, the area above horizontal posts


40


-


46


, and more particularly above floor


50


, forms a compartment area


88


, which will be used as a privacy compartment as described further herein.




With reference still to

FIG. 4

, top cover member


16


is pivotally mounted to frame member


12


by way of a hinge at


90


, allowing pivotal movement of the top cover relative to the frame between the closed position shown in

FIG. 4

, and a fully opened position shown in FIG.


6


. As also shown in

FIG. 6

, a latch member


92


is shown attached to U-shaped channel member


22


and positioned adjacent to door


70


to latch and unlatch top cover


16


in a locked condition. As also shown in

FIG. 6

, top cover portion


16


includes an outer padded portion


100


, and an inner structural planar portion, for example, such as a planar wood board section


102


.

FIG. 6

also shows air assist struts


106


positioned between planar portion


102


, and an inside edge of U-shaped frame members


24


,


28


to hold the cover member


16


in a fully upright position.




With reference now to

FIG. 8

, the support structure


18


for the privacy enclosure will now be described in greater detail. The support structure


18


includes Y-shaped legs


110


attached to pivot mount sections


112


, where Y-shaped legs


110


include sections


114


having remote free ends


116


attached to gas assisted shocks


118


. Gas assisted shocks are attached to an inside surface of legs


114


and further include an opposite end connected to planar portion


102


. Legs


110


further comprise a rectangular privacy curtain support member


120


, which as shown in

FIG. 8

, is shown in the stowed position. As shown in

FIG. 11

, a privacy curtain


130


is shown having a front section


132


and side sections


134


and


136


.




With respect still to

FIG. 11

, lounge chair


20


is pivotally connected to the deck


4


by way of pivot mounts


150


attached to a front edge


152


of lounge chair


20


. With respect to

FIG. 6

, a rear side


154


of lounge chair


20


includes a rigidifying plate at


156


as will be described in greater detail. As shown in

FIG. 6

, when chair is in the fully closed position, the chair partially covers the engine compartment opening


14


, and abuts U-shaped frame member


22


. Having described the various components, the assembly and operation of the enclosure


10


will now be described in greater detail.




With reference first to

FIGS. 6 and 7

, the enclosure


10


should be manufactured as mentioned above with the various frame members, such as U-shaped frame members


22


,


24


,


26


, and


28


, to be held in a jig or other fixture, whereupon posts


32


,


34


,


36


can be positioned intermediate the legs of the U-shaped channels as mentioned before. These various items can then be fixed together, such as by welding or other known means, such as brackets or suitable fasteners. The raised floor assembly will then be provided including the transverse cross members


40


-


46


, whereupon floor


50


can be positioned within the enclosure. As floor


50


will be visible to the user in the privacy enclosure, more than likely the top surface of floor


50


includes a finished surface, such as carpeting or other suitable surface.




Snap members


29


are also positioned on the inside surfaces of the various U-shaped channels


22


,


24


and


28


as best shown in FIG.


6


. The panel members


60


,


62


and


64


are also positioned about respective U-shaped channels


24


,


26


,


28


, and door


70


is hingedly fixed to U-shaped channel


28


.




As mentioned above, top cover portion


16


includes both a rigid portion


102


, as shown in

FIG. 8

, with an outer covering


100


, which would normally include both padding as well as a top covering such as a vinyl or leather for aesthetic purposes. With the top cover


16


as described, this unit can be hingedly attached to the frame member, hinge


90


as shown in FIG.


8


. The privacy support portion


18


can either be preassembled to the top cover or assembled to the top cover once attached to the frame member, in any event, the privacy support


18


would be attached as shown in

FIG. 8

, such that arms


110


pivot about their pivot points


112


with gas assisted shocks


118


attached to an inside surface of leg portions


114


. Curtain


130


would then be fixed to the rectangular portion


120


with side portions


134


and


136


attached to the legs


120


A and


120


B, respectively, and with front curtain portion


132


attached to the front leg


120


C. The privacy curtain


130


can be attached in a variety of ways as known in the art, to include snap members, industrial sewing, or hanging clips, which attach to member


120


.




As described above, this unit is now positioned at the edge of the pontoon boat over opening


14


which allows access to an inboard-outboard engine, and is hingedly attached as shown by hinge


80


in FIG.


4


. The gas assisted shocks


56


(

FIG. 3

) are also positioned and are now interconnected between the frame member


12


and a position adjacent the deck as described more fully herein. As mentioned above, in the preferred embodiment of the invention, an engine would include intake hoses routed to the air intake manifold of the engine, and would be connected to one or both vents


84


at the rear of the enclosure


10


. Rotatable seat


20


is also fixed to the deck


4


by way of pivot connections or hinges


150


. With the enclosure


10


assembled to the pontoon boat as described above, the operation of the enclosure


10


will now be described in greater detail.




It should be apparent from the description above that the enclosure


10


has three modes of operation, including a normally closed mode as shown in either of

FIG. 2

or


5


, a mode allowing access to the engine compartment as shown in

FIG. 3

, and in a mode to act as a privacy enclosure as shown in FIG.


12


.




It should be apparent that, when in the normal operation as shown in

FIG. 2

or


5


, the enclosure


10


is rotated to a closed position, with lounge chair


20


also rotated into the opposite sense. It should be appreciated that the gas assisted shocks


56


are provided with such a spring force that when the enclosure


10


is rotated to a fully closed position, the moment caused by the weight of the enclosure through the pivot point of hinge


80


prevents the enclosure


10


from rotating about hinge


80


. However, chair


20


also overlaps enclosure


12


by way of rigidifying plate


156


(

FIG. 6

) on the back of lounge chair


20


, which overlies peg


54


(

FIG. 3

) when in the fully rotated position.




If the enclosure in its entirety is to be lifted, that is, to access the engine compartment


14


, chair


20


is first rotated in a clockwise sense to a position shown in FIG.


3


. The enclosure


10


may now be rotated about hinge


80


in a counter-clockwise sense, as viewed in

FIG. 3

, and when the enclosure


10


is rotated to a fully upright position, the gas assisted shocks will hold the enclosure open, due to the change in the weight transfer about hinge


80


, as well as the change in the location of the pivot point of gas assisted shocks


56


relative to the frame as is known to those skilled in the art. Thus, the enclosure


10


has a second mode of operation shown in

FIG. 3

in a fully upright position, where the inboard-outboard engine can be accessed or serviced.




When the privacy enclosure is desired for use, the user can open door


70


by way of latch


74


and access latch member


92


. This allows the opening of top cover member


16


to be held open by gas assist struts


106


in the position shown in FIG.


11


. When in the position of

FIG. 11

, the curtain support


120


, together with arms


110


, may be rotated in the counter-clockwise sense as viewed in

FIG. 11

(to a position consistent with

FIG. 9

or


10


), whereupon gas assisted shocks


118


will hold the support


120


upwardly. This is due to the design of the support arms in a Y-shape arrangement. Said differently, when in the position of

FIG. 11

, the gas assisted shock


118


has its spring force assisting holding the support


120


in a stowed position, due to the moment created by gas assisted shocks


118


through arms


114


in relation to its pivot point


112


. However, when the support


120


is rotated to the position consistent with either of

FIG. 9

or


10


, gas assisted shocks now have their spring force acting in a moment which holds the support


120


in a fully upward position as should be apparent from FIG.


10


.




To complete the enclosure, the various snaps


170


at the bottom of the curtain


130


are snapped with corresponding snaps


29


on the inside of the enclosure, whereby the curtain


130


takes on a substantially truncated pyramidal shape, as shown best in FIG.


12


. It should be appreciated also that the zipper


130


would have its clasp adjacent to door


70


, such that the zipper opens as the clasp is raised upwardly towards support member


120


, such that the user can open door


70


and move curtain side wall


136


sideways and enter the privacy enclosure. It should be appreciated that the disassembly of the privacy enclosure includes a reverse process, where snaps


170


,


29


are released, support member


120


is rotated back to the position shown in

FIG. 11

, and the top cover


16


is rotated in the clockwise position to a fully closed position.




It should be appreciated that applicants have devised a very versatile and easily manipulated enclosure for operating as both an access for an inboard-outboard engine of a pontoon boat, as well as provide it for a privacy enclosure.



Claims
  • 1. A pontoon boat, comprising:a hull portion comprising a deck portion, a plurality of elongate pontoons positioned below said deck portion, said hull portion further comprising an engine compartment positioned adjacent an end of said of said hull portion, and at least partially below said deck portion, defining an engine compartment opening through said deck portion; an inboard-outboard engine positioned within said engine compartment with a drive portion extending outwardly and rearwardly of said hull portion for propelling said pontoon boat; an engine compartment cover assembly which substantially surrounds said engine compartment opening, said engine compartment cover assembly being pivotally mounted to said pontoon boat at a position adjacent to an edge of said engine compartment, said engine compartment cover assembly comprising upstanding side walls and end walls, said end walls and side walls defining a frame member which surrounds said engine compartment, said engine compartment cover assembly further comprising a raised floor section attached to said frame member, and a top cover portion which is pivotally mounted to said frame member, said top cover portion having a privacy enclosure assembly attached to an underside thereof, movable between stowed and upright positions and which includes a privacy curtain which drapes downwardly in the upright position to define said privacy enclosure.
  • 2. A pontoon boat according to claim 1, wherein said frame member includes a door allowing entry therethrough and access to said raised floor.
  • 3. A pontoon boat according to claim 2, wherein said privacy enclosure assembly includes a curtain frame which is pivotally mounted to said top cover portion.
  • 4. A pontoon boat according to claim 3, wherein said engine compartment cover assembly and said top cover portion are pivotally movable about horizontal and parallel axes.
  • 5. A pontoon boat according to claim 4, wherein said top cover portion has a locking latch for lockably latching said top cover portion to said frame member.
  • 6. A pontoon boat according to claim 5, wherein said frame member has first spring means for holding said frame member in an upright position.
  • 7. A pontoon boat according to claim 6 wherein said first spring means is comprised of gas assisted shocks.
  • 8. A pontoon boat according to claim 5, wherein said top cover portion has second spring means to hold said top cover portion in an upright position.
  • 9. A pontoon boat according to claim 8, wherein said second spring means is comprised of gas assisted shocks.
  • 10. A pontoon boat according to claim 5, wherein said curtain frame has third spring means to hold said curtain frame in an upright position.
  • 11. A pontoon boat according to claim 10, wherein said third spring means is comprised of gas assisted shocks.
  • 12. A pontoon boat according to claim 1, wherein a front one of said end walls is open.
  • 13. A pontoon boat according to claim 12, further comprising a lounge seat pivotally mounted to said deck portion from a front edge thereof, and which partially overlies said engine compartment opening, whereby when said lounge seat and said engine compartment cover assembly are positioned against said deck, said lounge seat and said engine compartment cover assembly abut to enclose said engine compartment, and whereby when said lounge seat and said engine compartment cover assembly are pivoted open said engine compartment is accessible.
  • 14. A pontoon boat according to claim 1, wherein said lower edges of said privacy curtain is attachable to said end walls and side walls to define said privacy enclosure.
  • 15. A combination engine compartment cover and privacy enclosure assembly, for positioning over an engine compartment of marine craft, where the engine compartment defines an opening through the deck of the marine craft for access to an engine, the assembly comprising:a frame member comprised of side walls and end walls which upstand to at least partially surround the opening, said frame member being pivotally connectable to the deck of the marine craft, for pivotal movement between a first closed position where said frame member abuts the deck, and a pivotally raised position with the opening accessible; a raised floor member attached to said frame member and extending substantially between said end walls and side walls; a top cover member pivotally attached to said frame member at an upper edge of one of said end or side walls; and a privacy enclosure assembly attached to an underside thereof, movable between stowed and upright positions and which includes a privacy curtain which drapes downwardly in the upright position to define said privacy enclosure.
  • 16. A combination assembly according to claim 15, wherein said frame member includes a door allowing entry therethrough and access to said raised floor.
  • 17. A combination assembly according to claim 15, wherein said privacy enclosure assembly comprises support arms pivotally attached to an underside of said top cover.
  • 18. A combination assembly of claim 17, wherein said top cover is pivotal to a position substantially vertical.
  • 19. A combination assembly of claim 18, wherein said support arms are pivotal to positions substantially vertical.
  • 20. A combination assembly of claim 19, wherein said privacy enclosure assembly further comprises a privacy curtain support member attached to ends of said support arm, opposite said pivoted ends.
  • 21. A combination assembly of claim 20, wherein said top cover pivots about a rear edge thereof, and said support arms pivot about a position adjacent a front edge of said top cover, whereby when said top cover and said support arms are pivoted into the open position, said privacy curtain support member is raised above said deck to a height substantially equal to the additive length of said top cover and said support arms.
  • 22. A combination assembly of claim 20, wherein said privacy curtain attaches to said end walls and said side walls to define said privacy enclosure.
  • 23. A combination assembly of claim 22, wherein said privacy curtain support member is rectangular, and said privacy curtain, when attached to said end walls and said side walls, defines a substantially truncated pyramidal shape.
  • 24. A combination assembly of claim 22, wherein said privacy curtain attaches to said end walls and said side walls by way of snap members.
  • 25. A combination assembly according to claim 15, wherein a front one of said end walls is open.
  • 26. A combination assembly according to claim 25, further comprising a lounge seat for pivotally mounting to the deck portion from a front edge thereof, and for partially overlying the engine compartment opening, whereby when said lounge seat and combination engine compartment cover and privacy enclosure assembly are positioned against the deck, said lounge seat and said engine compartment cover assembly abut to enclose said engine compartment, and whereby when said lounge seat and said engine compartment cover assembly are pivoted open the engine compartment is accessible.
BACKGROUND OF THE INVENTION

This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/345,439 filed Jan. 4, 2002, and U.S. Provisional Patent Application Ser. No. 60/351,538 filed Jan. 25, 2002, the complete disclosure of which is hereby expressly incorporated by reference. The invention is directed to privacy enclosures for marinecraft, and in particular, for pontoon boats. It is common in the pleasure craft industry, particularly in the pontoon boat industry, to include a privacy enclosure. The privacy enclosure can be raised to a position providing an enclosed area for a user to change into or out of a swimsuit during excursions. In some embodiments of privacy enclosures, lavatory facilities are also provided. While it is desirable to provide as many amenities as are possible, it is also of particular interest to not dedicate usable space on the pontoon deck area to lavatories, in order that the deck area on the pontoon boat is maximized. See, for example U.S. Pat. Nos. 4,883,016; 5,029,348; and 6,302,053. U.S. Pat. Nos. 4,883,016 and 5,029,348 both show a privacy enclosure which can be raised vertically; however, both references require substantial dedicated space simply for the privacy enclosure. U.S. Pat. No. 6,302,053, however, shows a privacy region which is stored on the rear side of a rotatable seat. However, in this application, the deck space beneath the seat is readily available for the privacy enclosure. It is desirable to have a privacy enclosure assembly, where decking space is not readily available, to even further maximize deck space.

US Referenced Citations (6)
Number Name Date Kind
4883016 Larson Nov 1989 A
5029348 Boren Jul 1991 A
5862540 Chuan Jan 1999 A
6263825 Davidson Jul 2001 B1
6302053 Tomczak et al. Oct 2001 B1
20020195041 Kalhok et al. Dec 2002 A1
Non-Patent Literature Citations (2)
Entry
Catalog, “Princecraft: Pontoons & Deck Boats”, 1995-1996, 24 pages.
Catalog, “Kayot: Deck Style Baots Pontoons”, 1994, 3 pages.
Provisional Applications (2)
Number Date Country
60/345439 Jan 2002 US
60/351538 Jan 2002 US