Patent US3836136A successfully refreshed from Google Patents.
US3836136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work clamp
Assignee: Individual
•
Filing: 1973-01-02
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Granted: 1974-09-17
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Expires: 1993-01-02
Abstract
Abstract Work clamp has a frame member upon which is movably mounted a clamp pad. The frame member also pivotally carries a clamp arm. A movable jaw is pivotally mounted on the clamp arm. The cam pivots the clamp arm on the frame so that clamping is achieved and pivoting of the one jaw permits the jaws to be maintained in proper relationship.
Inventors
- 👤 J Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:18
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/12; B25B5/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A work clamp comprising: a frame member; first and second jaw supporting arms, a first jaw fixed on said first jaw supporting arm, said first jaw supporting arm being of such construction as to slide freely along said frame member so as to be selectively positioned on said frame member and lock on said frame member when positioned, said second jaw supporting arm being pivotally mounted on said frame member, a second jaw pivotally mounted on said second jaw supporting arm, a holding arm pivotally mounted to said frame and to said second jaw to control the pivoting of said second jaw with respect to said pivoted second jaw supporting arm to maintain said second jaw in clamping orientation with respect to said first jaw, a cam pivotally mounted on said frame member said cam being engaged or disengaged with said second jaw supporting arm by means of a toggle assembly whereby the extent of motion of said cam may be increased or decreased by manipulation of an adjustment screw in said toggle assembly so that the total travel of said pivoted second jaw supporting arm and said second pivoted jaw carried thereon is thereby affected, thus providing for controllable manipulation of said clamping jaws toward and from each other and into and out of clamping engagement with an object positioned therebetween.
Claim 2
Dependent Claim
222 words
A work clamp comprising: a frame member; first and second jaw supporting arms, a first jaw fixed on said first jaw supporting arm, said first jaw supporting arm being of such construction as to slide freely along said frame member so as to be selectively positioned on said frame member and lock on said frame member when positioned, said second jaw supporting arm being pivotally mounted on said frame member, a second jaw pivotally mounted on said second jaw supporting arm, a holding arm pivotally mounted to said frame and to said second jaw to control the pivoting of said second jaw with respect to said pivoted second jaw supporting arm to maintain said second jaw in clamping orientation with respect to said first jaw, a cam pivotally mounted on said frame member said cam being engaged or disengaged with said second jaw supporting arm by means of a toggle assembly whereby the extent of motion of said cam may be increased or decreased by manipulation of an adjustment screw in said toggle assembly so that the total travel of said pivoted second jaw supporting arm and said second pivoted jaw carried thereon is thereby affected, thus providing for controllable manipulation of said clamping jaws toward and from each other and into and out of clamping engagement with an object positioned therebetween.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |