US4277100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambulatory apparatus
Assignee: Individual
•
Filing: 1979-10-18
•
Granted: 1981-07-07
•
Expires: 1999-10-18
Abstract
Abstract Ambulatory apparatus forassisting an invalid is disclosed which includes a rigid frame on which is carried at least three wheels. A brake shoe cooperates with at least one of the wheels. The brake shoe is biased into engagement to limit the movement of the walker unless the bias is manually overcome or locked out of engagement.
Inventors
- 👤 Gael Beougher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:27
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/04; A61H2003/046; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1628; A61H2201/1633
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A walker for assisting an invalid which comprises a rigid frame, at least three wheels carrying said frame, a brake comprising a shoe dimensioned for engagement with the periphery of one of said wheels, said shoe cooperating with at least said one of said wheels, biasing means for urging said shoe into engagement with said one of said wheels to limit rotation of said one wheel, means for locking said shoe away from said one wheel and against said biasing means so that said shoe does not limit rotation of said one wheel, said means for locking comprising an elongated handle pivotally mounted on said frame and having a generally transverse bore, said means further including a bracket carried on said frame and a pin engaging said bracket and said generally transverse bore when said handle is moved against said biasing means to prevent limitation of rotation of said wheel.
Claim 2
Dependent Claim
150 words
A walker for assisting an invalid which comprises a rigid frame, at least three wheels carrying said frame, a brake comprising a shoe dimensioned for engagement with the periphery of one of said wheels, said shoe cooperating with at least said one of said wheels, biasing means for urging said shoe into engagement with said one of said wheels to limit rotation of said one wheel, means for locking said shoe away from said one wheel and against said biasing means so that said shoe does not limit rotation of said one wheel, said means for locking comprising an elongated handle pivotally mounted on said frame and having a generally transverse bore, said means further including a bracket carried on said frame and a pin engaging said bracket and said generally transverse bore when said handle is moved against said biasing means to prevent limitation of rotation of said wheel.
Claim 3
Dependent Claim
24 words
The apparatus as described in claim 1, wherein said apparatus includes a fourth wheel and at least two of said wheels are caster mounted.
Claim 4
Dependent Claim
18 words
The apparatus as described in claim 2, wherein said apparatus further includes a seat carried on said frame.
Claim 5
Dependent Claim
15 words
The apparatus as described in claim 3, wherein (said seat further includes elongated depending finger.)
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |