Cylinder operated power clamp
Abstract
Abstract A WORK CLAMP OR HOLD DOWN CLAMP USED FOR HOLDING WORKPIECES AGAINST A CORRESPONDING SURFACE WHICH IS POWER OPERATED BY A FLUID MOTOR HAVING A PISTON AND PISTON ROD, THE CLAMP COMPRISES A PIVOT ARM WHICH IS PIVOTED WITHIN AN EXTENSION OF THE FLUID MOTOR AND THE OUTER END OF THE PISTON ROD OF THE FLUID MOTOR IS ATTACHED TO ONE END OF A LINK OR SWING LEVER AND THE OTHER END OF THE SWING LEVER IS ATTACHED TO THE PIVOT ARM, THE PIVOTAL CONNECTION TO THE SWING LEVER OR LINK IS BY MEANS OF A PIN WHICH EXTENDS INTO A LONGITUDINAL SLOT PROVIDED IN THE EXTENSION OF THE FLUID MOTOR AND WHICH IS DISPOSED ALONG THE CENTER LINE OF THE FLUID MOTOR, UPON RECIPROCATION OF THE PISTON OF THE FLUID MOTOR THE PIN WHICH CON- NECTS THE PISTON ROD TO THE SWING LEVER IS MOVED LONGITUDINALLY IN THE SLOT CAUSING THE SWING LEVER TO FOLLOW AND THEREBY PIVOT THE CLAMP ARM AROUND ITS FIXED PIVOT FROM RELEASE INTO CLAMPING POSITION OR VICE-VERSA.
Inventors
- 👤 Leland F Blatt
Bibliographic Details
Claims Analysis
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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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |