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US3915102A Expired / Lapsed US ⏱️ 0.0 years remaining

Wheelchair table

Assignee: Lawrence Peska Associates Inc
•
Filing: 1974-07-12
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Granted: 1975-10-28
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Expires: 1994-07-12
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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 2026-10-30 11:08
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.

References Cited (Backward Citations)

US843584A Cited
US1645683A Cited
US2556611A Cited
US2514524A Cited
US3027209A Cited
US3108549A Cited
US3137525A Cited
US3217672A Cited
US3410232A Cited

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

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