Patent US3915102A successfully refreshed from Google Patents.
US3915102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheelchair table
Assignee: Lawrence Peska Associates Inc
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Filing: 1974-07-12
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Granted: 1975-10-28
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Expires: 1994-07-12
Abstract
Abstract A telescoping support assembly with positive locking mechanism for a table designed to stradle a wheelchair enabling a person confined to the wheelchair to position the table in the desired position for feeding, writing or other functions normally performed on a table. The two legged membered telescoping support assemblies are mounted transversely to the ends of the planar table top. For each two legged membered telescoping support assembly a positive lever type locking mechanism is provided.
Inventors
- 👤 Daniel Barron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:49
CPC Classifications
A; A47; A47B; A47B9/00; A47B9/14; A47B2200/00; A47B2200/13
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
284 words
A wheelchair table, which comprises: a. a rectangularly shaped table top having a curved cutout portion along one longitudinal edge thereof; b. an inverted U-shaped hollow tubular member affixed transversely to a bottom surface of said table top at each end thereof, the open ended legs of each said tubular member extending downwardly, each said leg having on its interior face an aperture therethrough; c. a pair of cross brace members having center vertically aligned slot apertures therethrough, each said cross brace member communicating between said pair of said legs of each said tubular member; d. a hollow cylindrically shaped sleeve in each said aperture of each said leg; e. a pair of horizontally placed cross joining beams; f. upwardly extending support bars joined to each end of each said cross joining beam, each said support bar having a plurality of equally spaced horizontally aligned slot apertures therein along one longitudinal surface thereof, each said support bar slidably contained into each said open end of each said leg of each said tubular member; g. a vertically placed scissor shaped member mounted on a horizontal pin in each said vertical slot aperture of each said cross brace member, the handles of said scissor shaped member extending above said cross brace member and the legs of said scissor shaped member extending below said cross brace member; h. a horizontal extension rod extending outwardly from a lower free end of each said leg of each said scissor shaped member, each said extension rod slidably extending through one said cylindrically shaped sleeve to engage one said horizontal slot aperture of one said support bar; and i. tension springs mounted between said handles of each said scissor shaped member.
Claim 2
Dependent Claim
284 words
A wheelchair table, which comprises: a. a rectangularly shaped table top having a curved cutout portion along one longitudinal edge thereof; b. an inverted U-shaped hollow tubular member affixed transversely to a bottom surface of said table top at each end thereof, the open ended legs of each said tubular member extending downwardly, each said leg having on its interior face an aperture therethrough; c. a pair of cross brace members having center vertically aligned slot apertures therethrough, each said cross brace member communicating between said pair of said legs of each said tubular member; d. a hollow cylindrically shaped sleeve in each said aperture of each said leg; e. a pair of horizontally placed cross joining beams; f. upwardly extending support bars joined to each end of each said cross joining beam, each said support bar having a plurality of equally spaced horizontally aligned slot apertures therein along one longitudinal surface thereof, each said support bar slidably contained into each said open end of each said leg of each said tubular member; g. a vertically placed scissor shaped member mounted on a horizontal pin in each said vertical slot aperture of each said cross brace member, the handles of said scissor shaped member extending above said cross brace member and the legs of said scissor shaped member extending below said cross brace member; h. a horizontal extension rod extending outwardly from a lower free end of each said leg of each said scissor shaped member, each said extension rod slidably extending through one said cylindrically shaped sleeve to engage one said horizontal slot aperture of one said support bar; and i. tension springs mounted between said handles of each said scissor shaped member.
Claim 3
Dependent Claim
25 words
A wheelchair table as recited in claim 1 in which a set of casters are mounted onto a bottom base of said cross joining beam.
Claim 4
Dependent Claim
18 words
A wheelchair table according to claim 1, wherein an electrical outlet panel is contained in said table top.
Claim 5
Dependent Claim
21 words
A wheelchair table according to claim 3, wherein a curved shaped bracket communicates between each said leg and said table top.
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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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |