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US4390076A
Expired / Lapsed
US
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Integrated wheelchair and ambulator
Assignee: United States Department of the Navy
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Filing: 1981-01-26
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Granted: 1983-06-28
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Expires: 2001-01-26
Abstract
Abstract An integrated ambulator and wheelchair is provided to enable a paraplegic stand on the ambulator and be separated from the wheelchair for maneuvering in confined spaces. The ambulator has power operated articulated linkage for raising the paraplegic out of and free of the wheelchair to the standing position on the ambulator; the compact base of the ambulator containing a drive mechanism for moving the ambulator in any desired direction through controls conveniently located on an arm rest.
Inventors
- 👤 John P. Wier
- 👤 Robert A. Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:08
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/14; B; B62; B62D; B62D51/00; B62D51/02; A61G2200/00; A61G2200/30; A61G2200/36; Y; Y10; Y10S; Y10S180/00; Y10S180/907; Y10S280/00; Y10S280/10; Y10S297/00; Y10S297/04; Y10S297/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
117 words
An integrated separable ambulator and wheelchair comprising: the ambulator including: a base which is capable of resting on a floor and supporting a person's feet; a seat; a framework of articulated linkage mounted on the base for supporting the seat between horizontal and vertical positions; means for selectively moving the seat between the horizontal and vertical positions so that a person can be supported between sitting and standing positions respectively; said ambulator and wheelchair having mating connecting means when the seat is in a vertical position; and means for lifting the base clear of the floor when the ambulator and wheelchair are mated so as to enable the wheelchair to be maneuvered with the ambulator supported thereon.
Claim 2
Dependent Claim
117 words
An integrated separable ambulator and wheelchair comprising: the ambulator including: a base which is capable of resting on a floor and supporting a person's feet; a seat; a framework of articulated linkage mounted on the base for supporting the seat between horizontal and vertical positions; means for selectively moving the seat between the horizontal and vertical positions so that a person can be supported between sitting and standing positions respectively; said ambulator and wheelchair having mating connecting means when the seat is in a vertical position; and means for lifting the base clear of the floor when the ambulator and wheelchair are mated so as to enable the wheelchair to be maneuvered with the ambulator supported thereon.
Claim 3
Dependent Claim
24 words
The integrated separable ambulator and wheelchair of claim 1 wherein said means for lifting the base includes the means for selectively moving the seat.
Claim 4
Dependent Claim
176 words
An integrated separable ambulator and wheelchair comprising: the ambulator including: a base which is capable of resting on the floor and supporting a person's feet; a seat; a framework of articulated linkage mounted on the base for supporting the seat between horizontal and vertical positions; and means for selectively moving the seat between the horizontal and vertical positions so that a person can be supported between sitting and standing positions respectively; said ambulator and wheelchair having mating connecting means when the ambulator is in a vertical position, said mating connecting means including: the wheelchair having a pair of upper and lower guide rails; a pair of upper rollers mounted on the linkage for engaging the pair of upper guide rails; and a pair of lower rollers mounted on the base for engaging the pair of lower guide rails; and the means for selectively moving the seat also for lifting the base clear of the floor when the ambulator and wheelchair are mated so as to enable the wheelchair to be maneuvered with the ambulator supported thereon.
Claim 5
Dependent Claim
176 words
An integrated separable ambulator and wheelchair comprising: the ambulator including: a base which is capable of resting on the floor and supporting a person's feet; a seat; a framework of articulated linkage mounted on the base for supporting the seat between horizontal and vertical positions; and means for selectively moving the seat between the horizontal and vertical positions so that a person can be supported between sitting and standing positions respectively; said ambulator and wheelchair having mating connecting means when the ambulator is in a vertical position, said mating connecting means including: the wheelchair having a pair of upper and lower guide rails; a pair of upper rollers mounted on the linkage for engaging the pair of upper guide rails; and a pair of lower rollers mounted on the base for engaging the pair of lower guide rails; and the means for selectively moving the seat also for lifting the base clear of the floor when the ambulator and wheelchair are mated so as to enable the wheelchair to be maneuvered with the ambulator supported thereon.
Claim 6
Dependent Claim
32 words
The integrated separable ambulator and wheelchair of claim 3 wherein the means for selectively moving the seat also raises and lowers the base after the upper rollers engage the upper guide rails.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-27 | 1986-12-27 | 1987-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-27 | 1990-12-27 | 1991-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-27 | 1994-12-27 | 1995-06-28 | $7700.00 | Window Closed / Lapsed |