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US4397245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work piece holder
Assignee: Individual
•
Filing: 1980-12-08
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Granted: 1983-08-09
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Expires: 2000-12-08
Abstract
Abstract A tilting work table for supporting articles during work operations and having a base structure, a bed plate pivotally connected to the base structure, a plurality of hydraulic cylinders connected between the base structure and the bed plate to raise or tilt the bed plate from a horizontal position to a vertical position, a plurality of folding leg braces connected between the bed plate and the base structure and extendable into a position to form a "stiff-leg" arrangement for bracing the bed plate in substantially any tilted position, secondary cylinders connected between the leg braces and the base structure for urging the leg braces into the extended position and to "break" or initiate the folding of the leg braces when the bed plate is lowered from the vertical position to the horizontal position.
Inventors
- 👤 Monard G. Washburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:29
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/14; B25H1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
A tilting work table for supporting a work piece during a work operation and comprising: a base means; a bed plate having a working surface for receiving the work piece thereon, said bed plate being pivotally connected to said base frame; means operably connected between said base means and said bed plate for moving said bed plate between horizontal and vertical positions; manually operable folding leg means secured between the base means and bed plate for bracing of the bed plate in the tilted positions thereof to preclude accidental movement of the tilted bed plate toward a horizontal position upon failure of the bed plate moving means; said folding leg means comprising at least two leg members having the adjacent ends thereof hingedly secured together and movable between alternate extended and collapsed positions; and secondary cylinder means operably connected between the base means and leg means to initiate the collapsing of the leg means.
Claim 2
Dependent Claim
154 words
A tilting work table for supporting a work piece during a work operation and comprising: a base means; a bed plate having a working surface for receiving the work piece thereon, said bed plate being pivotally connected to said base frame; means operably connected between said base means and said bed plate for moving said bed plate between horizontal and vertical positions; manually operable folding leg means secured between the base means and bed plate for bracing of the bed plate in the tilted positions thereof to preclude accidental movement of the tilted bed plate toward a horizontal position upon failure of the bed plate moving means; said folding leg means comprising at least two leg members having the adjacent ends thereof hingedly secured together and movable between alternate extended and collapsed positions; and secondary cylinder means operably connected between the base means and leg means to initiate the collapsing of the leg means.
Claim 3
Dependent Claim
18 words
A tilting work table as set forth in claim 1 wherein said secondary cylinder means is pneumatically actuated.
Claim 4
Dependent Claim
18 words
A tilting work table as set forth in claim 1 wherein said secondary cylinder means is hydraulically actuated.
References Cited (Backward Citations)
US2014394A
Cited
US2314144A
Cited
US2469644A
Cited
US2471003A
Cited
US2639541A
Cited
US2798333A
Cited
US2823451A
Cited
US2972207A
Cited
US3047286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |