Patent US3336642A successfully refreshed from Google Patents.
US3336642A
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US
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Clamp with preset tension
Assignee: American Drill Bushing Co
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Filing: 1965-10-19
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Granted: 1967-08-22
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert H Armacost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:12
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/067; B25B5/16; B25B5/163; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/44581; Y10T24/4459
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PRESSURE CLAMP FOR EXERTING A PREDETERMINED PRESSURE ON A SHEET OF MATERIAL COMPRISING A FRAME HAVING SPACED BRACKET ARMS WITH CLAMPING ENDS OPPOSITE EACH OTHER, A CONNECTING HANDLE ATTACHED TO SAID ARMS, A GUIDE MEMBER ADJACENT ONE OF SAID BRACKET ARMS AND AN OPERATING ASSEMBLY COMPRISING A SHAFT EXTENDING SLIDABLY AND NONROTATABLY THROUGH SAID GUIDE MEMBER AND SAID ONE BRACKET ARM, A SPRING ACTING BETWEEN SAID SHAFT AND SAID FRAME BIASED TO EXTEND SAID SHAFT TOWARD SAID OTHER BRACKET ARM, AND LIFTER COMPRISING A FIRST END ELEMENT MOVABLY CONNECTED TO SAID SHAFT, A SECOND END ELEMENT HAVING A THUMBPIECE THEREON AND A CONTACT ELEMENT INTERMEDIATE SAID END ELEMENTS HAVING A MOVING ENGAGEMENT WITH SAID ONE BRACKET ARM.
Claim 2
Dependent Claim
118 words
A PRESSURE CLAMP FOR EXERTING A PREDETERMINED PRESSURE ON A SHEET OF MATERIAL COMPRISING A FRAME HAVING SPACED BRACKET ARMS WITH CLAMPING ENDS OPPOSITE EACH OTHER, A CONNECTING HANDLE ATTACHED TO SAID ARMS, A GUIDE MEMBER ADJACENT ONE OF SAID BRACKET ARMS AND AN OPERATING ASSEMBLY COMPRISING A SHAFT EXTENDING SLIDABLY AND NONROTATABLY THROUGH SAID GUIDE MEMBER AND SAID ONE BRACKET ARM, A SPRING ACTING BETWEEN SAID SHAFT AND SAID FRAME BIASED TO EXTEND SAID SHAFT TOWARD SAID OTHER BRACKET ARM, AND LIFTER COMPRISING A FIRST END ELEMENT MOVABLY CONNECTED TO SAID SHAFT, A SECOND END ELEMENT HAVING A THUMBPIECE THEREON AND A CONTACT ELEMENT INTERMEDIATE SAID END ELEMENTS HAVING A MOVING ENGAGEMENT WITH SAID ONE BRACKET ARM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |