US3633242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furniture jack
Assignee: Individual
•
Filing: 1970-09-01
•
Granted: 1972-01-11
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Expires: 1990-09-01
Abstract
Abstract An item of furniture which incorporates self-containing elevating means, the means including a jack which is movable between a raised and a lowered position, the jack at its lower end including caster wheels so that when the jack is lowered, the furniture can be moved within a room.
Inventors
- 👤 Henry J Wasofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/04; B60B33/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
237 words
In a furniture jack, the combination of an item of furniture, said item of furniture comprising either a couch, a stuffed chair or other equivalent and relatively heavy furniture, and said furniture item incorporating a jack mechanism for effortlessly moving said furniture item away from a wall or relocating the same, said furniture item including opposite end walls and a plurality of four legs for supporting said furniture item upon a floor of a room, and said jack mechanism comprising a pair of frame mechanisms each one of which is supported upon an inner side of each of said sidewalls of said furniture item, each of said frame mechanisms comprising a stationary plate secured to said inner side of said furniture end wall, each of said plates having a pair of pins projecting therefrom, at least one of said pins comprising an elongated rod supported between said plates of said frame mechanism, said rod being supported rotatably free on each of said plates, a pair of legs centrally pivotable about said pins, a lower end of said legs each being provided with a caster wheel, and a pair of interconnecting links between said legs of each said frame mechanism, one end of each of said links being attached pivotally free to an upper end of one leg while the opposite end of said link is connected pivotally free to a lower end of the other said leg.
Claim 2
Dependent Claim
237 words
In a furniture jack, the combination of an item of furniture, said item of furniture comprising either a couch, a stuffed chair or other equivalent and relatively heavy furniture, and said furniture item incorporating a jack mechanism for effortlessly moving said furniture item away from a wall or relocating the same, said furniture item including opposite end walls and a plurality of four legs for supporting said furniture item upon a floor of a room, and said jack mechanism comprising a pair of frame mechanisms each one of which is supported upon an inner side of each of said sidewalls of said furniture item, each of said frame mechanisms comprising a stationary plate secured to said inner side of said furniture end wall, each of said plates having a pair of pins projecting therefrom, at least one of said pins comprising an elongated rod supported between said plates of said frame mechanism, said rod being supported rotatably free on each of said plates, a pair of legs centrally pivotable about said pins, a lower end of said legs each being provided with a caster wheel, and a pair of interconnecting links between said legs of each said frame mechanism, one end of each of said links being attached pivotally free to an upper end of one leg while the opposite end of said link is connected pivotally free to a lower end of the other said leg.
Claim 3
Dependent Claim
57 words
The combination as set forth in claim 1, wherein a radially extending stub shaft is rigidly affixed to said pin comprising said elongated rod extending between said frame mechanisms, said radially extending stub shaft detachably receiving a tubular handle for conveniently pivoting said rod so to adjust said frame mechanism between a retracted and an extended position.
Claim 4
Dependent Claim
41 words
The combination as set forth in claim 1, wherein a pair of stops are mounted on each of said plates of each frame mechanism, said stops limiting the downwardly extending position of said frame mechanism legs when in an extended position.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |