US3889964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake stand for wheelchairs
Assignee: PITTS FLOYD B JR
•
Filing: 1973-11-19
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Granted: 1975-06-17
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Expires: 1993-11-19
Abstract
Abstract An attachment for wheelchairs in the form of a brake attachment or a brake stand. In the preferred form the brake stand is in the form of a frame attachment used between side frame members of the wheelchair. It adjustably attaches to vertical frame members of the chair in adjustably latched positions with biasing means biasing the stand in an upward direction. The brake stand can be moved into a lowered position to engage the floor or other surface lifting the main wheels of the chair off the floor and holding the chair in the stabilized or brake position. Simplified forms of the attachment means are provided to be adjustably positioned to lift and hold the chair in an upward position with the main wheels off the floor. The stand may be quickly released by attendants or others to allow normal movement of the wheelchair.
Inventors
- 👤 Jr Floyd B Pitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:40
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1005; A61G5/1029; A61G3/00; A61G3/08; A61G3/0808; A61G5/101; A61G5/1013; A61G5/1035; A61G5/1037; A61G5/1008; B; B62; B62B; B62B5/00; B62B5/04; B62B5/049
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
238 words
A brake attachment for a wheel chair resting on a surface, said wheel chair of the type having a frame and seat and a pair of main wheels and a pair of forward wheels, said brake attachment means coupled to the frame of the wheel chair and adjustably moveable with respect thereto, said brake attachment means comprising: a frame structure having: a pair of transversely spaced longitudinal members, each having a forward end and a rear end spaced a preselected longitudinal distance from said forward end; foot portions coupled to each of said forward ends and said rear ends of said longitudinal members; latch means operatively interconnecting said brake attachment means and said wheel chair for selectively securing said brake attachment means to said wheel chair in a plurality of positions relative thereto, and in at least a first of said plurality of positions said foot portions are free of engagement with the surface upon which said wheel chair rests to allow said main wheels and said forward wheels to engage said surface to allow movement of said wheel chair thereon, and in a second of said plurality positions said foot portions engage the surface to lift at least said main wheels free of engagement with the surface to prevent movement of said wheel chair thereon; trigger means operatively engaging said latch means to allow selective movement of said brake attachment means between said plurality of positions thereof.
Claim 2
Dependent Claim
238 words
A brake attachment for a wheel chair resting on a surface, said wheel chair of the type having a frame and seat and a pair of main wheels and a pair of forward wheels, said brake attachment means coupled to the frame of the wheel chair and adjustably moveable with respect thereto, said brake attachment means comprising: a frame structure having: a pair of transversely spaced longitudinal members, each having a forward end and a rear end spaced a preselected longitudinal distance from said forward end; foot portions coupled to each of said forward ends and said rear ends of said longitudinal members; latch means operatively interconnecting said brake attachment means and said wheel chair for selectively securing said brake attachment means to said wheel chair in a plurality of positions relative thereto, and in at least a first of said plurality of positions said foot portions are free of engagement with the surface upon which said wheel chair rests to allow said main wheels and said forward wheels to engage said surface to allow movement of said wheel chair thereon, and in a second of said plurality positions said foot portions engage the surface to lift at least said main wheels free of engagement with the surface to prevent movement of said wheel chair thereon; trigger means operatively engaging said latch means to allow selective movement of said brake attachment means between said plurality of positions thereof.
Claim 3
Dependent Claim
66 words
The arrangement defined in claim 1 wherein: said pair of longitudinal members are substantially parallel; said forward ends of said longitudinal members are positioned forward of said main wheels and intermediate said main wheels and said forward wheels of said wheel chair; and said rear ends of said longitudinal members are positioned longitudinally spaced from said forward ends thereof and in back of said main wheels.
Claim 4
Dependent Claim
21 words
The arrangement defined in claim 2 wherein: one of said pair of longitudinal members are adjacent each of said main wheels.
Claim 5
Dependent Claim
113 words
The arrangement defined in claim 3 and further comprising: a transverse member coupled to each of said longitudinal members for maintaining said transverse spacing therebetween; a vertical member coupled to each of said longitudinal members and extending upwardly therefrom toward said wheel chair; said latch means further comprises: each of said vertical members having a spring loaded pin means extending therefrom; vertically aligned tubular members in which said vertical members are telescoped, and said vertically aligned tube members having a plurality of pin accepting apertures therethrough in a preselected vertically spaced array for receiving said pin means on said vertical members therein for supporting said brake attachment means in said plurality of positions.
Claim 6
Dependent Claim
85 words
The arrangement defined in claim 4 wherein: said vertically aligned tubular members are pivotally mounted on said wheel chair for limited rotary motion with respect thereto; said vertical members move into said plurality of positions with respect to said wheel chair in said vertically aligned tubular members in a substantially linear direction with respect to said vertically aligned tubular members, whereby each of said foot members and said forward wheels of said wheel chair engage the surface in said second of said plurality of positions.
Claim 7
Dependent Claim
39 words
The arrangement defined in claim 5 wherein: said latch means selectively disengages said pin means from said pin accepting apertures in said vertically aligned tube members to allow movement of said frame structure between said plurality of positions thereof.
Claim 8
Dependent Claim
43 words
The arrangement defined in claim 4 wherein: said vertically aligned tubular members are rigidly coupled to said frame of said wheel chair; and said vertical members move reciprocatingly in vertical directions in said vertically aligned tubular members between said plurality of positions thereof.
References Cited (Backward Citations)
US1591529A
Cited
US1747972A
Cited
US2586724A
Cited
US2537909A
Cited
US2798232A
Cited
US3090634A
Cited
US3307658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |