US3575405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel bar clamping device
Assignee: Individual
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Filing: 1968-08-28
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Granted: 1971-04-20
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Expires: 1988-08-28
Abstract
Abstract A clamping device includes a pair of jaw members, each being mounted on corresponding ends of a pair of parallel bars for pivoting and sliding motion relative to said bars.
Inventors
- 👤 Emmit B Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/10; B25B5/104; B25B5/106
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
In a screw threaded clamping device of the type including a pair of spaced apart generally parallel bar members adapted to receive a workpiece in clamped retention between a pair of corresponding ends thereof, the improvement comprising: first and second jaw members each including a workpiece engaging plate portion and a web portion having an elongated slot therein, the plate portions of said first and second members each being provided with a plurality of recessed areas on their opposing surfaces and defining relatively raised land areas therebetween so as to facilitate the clamped retention of a workpiece received therebetween, means including a pair of cross pins each separately receivable through a different one of said slots and mounting said jaw members on respectively corresponding ends of said bar members for pivoting and sliding motion relative thereto, and the interior wall surface of each of said elongated slots being provided with a plurality of detents serving as seating positions for said received cross pin to facilitate pivotal movement of said jaw members.
Claim 2
Dependent Claim
171 words
In a screw threaded clamping device of the type including a pair of spaced apart generally parallel bar members adapted to receive a workpiece in clamped retention between a pair of corresponding ends thereof, the improvement comprising: first and second jaw members each including a workpiece engaging plate portion and a web portion having an elongated slot therein, the plate portions of said first and second members each being provided with a plurality of recessed areas on their opposing surfaces and defining relatively raised land areas therebetween so as to facilitate the clamped retention of a workpiece received therebetween, means including a pair of cross pins each separately receivable through a different one of said slots and mounting said jaw members on respectively corresponding ends of said bar members for pivoting and sliding motion relative thereto, and the interior wall surface of each of said elongated slots being provided with a plurality of detents serving as seating positions for said received cross pin to facilitate pivotal movement of said jaw members.
Claim 3
Dependent Claim
31 words
A clamping device as defined in claim 1, wherein in each of said jaw members, said detents are disposed along the slot engaging surface closest to said workpiece engaging plate portion.
Claim 4
Dependent Claim
55 words
A clamping device as defined in claim 1, wherein said pivotal and sliding motion of one of said jaw members is independent of the pivotal and sliding motion of the other of said jaw members so as to permit said jaw members to conform generally to selected surfaces of the workpiece to be clamped 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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |