Patent US2439164A successfully refreshed from Google Patents.
US3752464A
Expired / Lapsed
US
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Work holding device
Assignee: KARG MACHINE PRODUCTS Inc
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Filing: 1971-08-04
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Granted: 1973-08-14
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Expires: 1991-08-04
Abstract
Abstract Work holding device or vise with a base, fixed and movable work engaging surfaces or jaws, and dual means - fluid-pressure actuated and manually actuated - for positioning the jaws relative one to the other.
Inventors
- 👤 G Csatlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:58
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/06; B25B1/10; B25B1/106
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
164 words
In a work holding device with a base, fixed and movable work engaging jaws, and dual means, fluid-pressure actuated and manually actuated, for positioning the jaws relative one to the other, the combination of, a slide member on said base carrying said movable jaw and having an interiorly threaded bore therein, an elongated actuating shaft with an end having a mating exterior thread rotatably inserted into said slide member bore, a stanchion on said basE for rotatably and slidably holding said actuating shaft in axial alignment with said slide member bore, said actuating shaft extending away from said slide member and through the stanchion and terminating in a free end adapted to receive a handle, a hollow piston on said actuating shaft between said free end and said stanchion, said piston being received in a fluid-pressure transmitting relation within an annular cylinder, a mounting collar for positioning said cylinder coaxially around said shaft, and means for positioning said mounting collar axially of said stanchion.
Claim 2
Dependent Claim
164 words
In a work holding device with a base, fixed and movable work engaging jaws, and dual means, fluid-pressure actuated and manually actuated, for positioning the jaws relative one to the other, the combination of, a slide member on said base carrying said movable jaw and having an interiorly threaded bore therein, an elongated actuating shaft with an end having a mating exterior thread rotatably inserted into said slide member bore, a stanchion on said basE for rotatably and slidably holding said actuating shaft in axial alignment with said slide member bore, said actuating shaft extending away from said slide member and through the stanchion and terminating in a free end adapted to receive a handle, a hollow piston on said actuating shaft between said free end and said stanchion, said piston being received in a fluid-pressure transmitting relation within an annular cylinder, a mounting collar for positioning said cylinder coaxially around said shaft, and means for positioning said mounting collar axially of said stanchion.
Claim 3
Dependent Claim
26 words
A work holding device according to claim 1, wherein a coiled compression spring is positioned between said piston and said stanchion coaxially around said actuating shaft.
References Cited (Backward Citations)
US2708381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |