US3071406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate clamps
Assignee: Individual
•
Filing: 1955-03-30
•
Granted: 1963-01-01
•
Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Laurence H Lucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:46
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A CLAMP COMPRISING A SLOTTED WALL SUPPORT, AN ANVIL CARRIED BY A WALL OF THE SLOT AND HAVING A WORK SURFACE EXTENDING NORMAL TO THE SUPPORT, A CLAMPING CAM PIVOTED TO THE SUPPORT ON AN AXIS SUBSTANTIALLY PARALLEL TO THE SURFACE AND HAVING A PERIPHERAL PORTION MOVABLE TOWARD SAID SURFACE, A SHACKLE LEVER PIVOTED ON AN AXIS INTERMEDIATE ITS ENDS TO THE SUPPORT, A LINK PIVOTALLY CONNECTED TO THE CAM AT A LOCATION SPACED FROM ITS PIVOT AXIS AND TO ONE END OF THE SHACKLE LEVER, A SHACKLE PIVOTED TO THE OTHER END OF THE LEVER, SAID SHACKLE UPON APPLICATION OF A FORCE THERETO, OPERATING TO MOVE THE CAM TOWARD OR AWAY FROM THE ANVIL SURFACE BY ROTATION OF THE LEVER, A TORSION SPRING HAVING ONE END ABUTTING THE SUPPORT AND A FREE END ABUTTING THE CAM AT A LOCATION SPACED FROM ITS PIVOT TO BIAS THE CAM TOWARD THE ANVIL SURFACE, AND MEANS INCLUDING A LEVER MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE FREE END OF THE TORSION SPRING FOR MOVING IT FROM ABUTTING ENGAGEMENT WITH THE CAM TO RELIEVE THE BIAS THEREON.
Claim 2
Dependent Claim
185 words
A CLAMP COMPRISING A SLOTTED WALL SUPPORT, AN ANVIL CARRIED BY A WALL OF THE SLOT AND HAVING A WORK SURFACE EXTENDING NORMAL TO THE SUPPORT, A CLAMPING CAM PIVOTED TO THE SUPPORT ON AN AXIS SUBSTANTIALLY PARALLEL TO THE SURFACE AND HAVING A PERIPHERAL PORTION MOVABLE TOWARD SAID SURFACE, A SHACKLE LEVER PIVOTED ON AN AXIS INTERMEDIATE ITS ENDS TO THE SUPPORT, A LINK PIVOTALLY CONNECTED TO THE CAM AT A LOCATION SPACED FROM ITS PIVOT AXIS AND TO ONE END OF THE SHACKLE LEVER, A SHACKLE PIVOTED TO THE OTHER END OF THE LEVER, SAID SHACKLE UPON APPLICATION OF A FORCE THERETO, OPERATING TO MOVE THE CAM TOWARD OR AWAY FROM THE ANVIL SURFACE BY ROTATION OF THE LEVER, A TORSION SPRING HAVING ONE END ABUTTING THE SUPPORT AND A FREE END ABUTTING THE CAM AT A LOCATION SPACED FROM ITS PIVOT TO BIAS THE CAM TOWARD THE ANVIL SURFACE, AND MEANS INCLUDING A LEVER MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE FREE END OF THE TORSION SPRING FOR MOVING IT FROM ABUTTING ENGAGEMENT WITH THE CAM TO RELIEVE THE BIAS THEREON.
References Cited (Backward Citations)
US365426A
Cited
US1091356A
Cited
US2360601A
Cited
US2393101A
Cited
US2549918A
Cited
US2538325A
Cited
US2654630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |