US4257644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheelchair tie-down
Assignee: Individual
•
Filing: 1979-04-02
•
Granted: 1981-03-24
•
Expires: 1999-04-02
Abstract
Abstract A wheelchair tie-down apparatus is provided for use on buses, vans, and other vehicles with emphasis in the public transportation area. The tie-down apparatus comprises three elongated coffers arranged to define a wheelchair bay, each of these coffers having hinged lids which open to expose an extendable, length-adjustable, flexible strap which is connected to a structural member of the wheelchair and then all three straps are cinched down through use of the length adjustment mechanism.
Inventors
- 👤 Richard E. Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
A; A61; A61G; A61G3/00; A61G3/08; A61G3/0808
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
In a vehicle having a floor and a designated floor area to provide a wheelchair station, a wheelchair tie-down apparatus comprising: (a) a plurality of coffers mounted to said floor substantially in said designated area, each of said coffers having ramp-like walls and a hinged, substantially flat lid spanning the tops of said walls to permit a wheelchair to roll over said coffers with relative ease; (b) an anchor member mounted in each coffer; (c) a flexible strap for each of said anchor members, said straps each having a tethered end connected to an anchor member and a distal end having a wheelchair-engaging means thereon; (d) each of said straps being dimensioned to lie within a respective one of said coffers when not in use and having a manually operable length adjustable means for cinching down said wheelchair when not in use.
Claim 2
Dependent Claim
142 words
In a vehicle having a floor and a designated floor area to provide a wheelchair station, a wheelchair tie-down apparatus comprising: (a) a plurality of coffers mounted to said floor substantially in said designated area, each of said coffers having ramp-like walls and a hinged, substantially flat lid spanning the tops of said walls to permit a wheelchair to roll over said coffers with relative ease; (b) an anchor member mounted in each coffer; (c) a flexible strap for each of said anchor members, said straps each having a tethered end connected to an anchor member and a distal end having a wheelchair-engaging means thereon; (d) each of said straps being dimensioned to lie within a respective one of said coffers when not in use and having a manually operable length adjustable means for cinching down said wheelchair when not in use.
Claim 3
Dependent Claim
42 words
The structure according to claim 1, wherein said coffers are three in number, two of which are disposed alongside said wheelchair station and the third being disposed at the rear of said wheelchair station to provide a three-point tie-down for said wheelchair.
Claim 4
Dependent Claim
19 words
The structure according to claim 2 wherein said coffers are elongated and define a U-shaped bay for said wheelchair.
References Cited (Backward Citations)
US817686A
Cited
US1010763A
Cited
US1835840A
Cited
US2024444A
Cited
US1934165A
Cited
US2442266A
Cited
US3469770A
Cited
US3595125A
Cited
US3955847A
Cited
US4019752A
Cited
US4060271A
Cited
US4083594A
Cited
US4093303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |