Chuck
Abstract
Abstract A CHUCK HAS A SLEEVE, THROUGH AN OPENING IN A TRANSVERSE WALL OF WHICH A PORTION OF A SHAFT MEMBER EXTENDS INTO THE INTERIOR AND TOWARDS THE OPEN END OF THE SLEEVE WHICH IS OPPOSITE AND REMOTE FROM THE TRANSVERSE WALL. THE INNER CIRCUMFERENTIAL SURFACE OF THE SLEEVE TAPERS CONICALLY IN DIRECTION TOWARDS THE OPEN END. A PLATE MEMBER IS CARRIED ON THE SHAFT EXTENDING NORMAL TO THE AXIS THEREOF. A PLURALITY OF GRIPPING JAWS ARE LOCATED IN THE SLEEVE INTERMEDIATE THE PLATE MEMBER AND OPEN END. THEY EACH HAVE AN ENDFACE ABUTTING THE PLATE MEMBER AND AN OUTER SURFACE COMPLEMENTARY TO AN IN EN- GAGEMENT WITH A PORTION OF THE INNER CIRCUMFERENTIAL SURFACE. SPRINGS URGE THE GRIPPING JAWS PERMANENTLY RADIALLY AWAY FROM EACH OTHER AND INTO ABUTMENT WITH THE PLATE MEMBER. ADJUSTING MEANS PERMITS MOVEMENT OF AT LEAST PART OF THE SLEEVE AXIALLY OF THE SHAFT TO RAPIDLY DISPLACE THE JAWS RELATIVE TO ONE ANOTHER, AND ALSO PERMITS ROTARY MOVEMENT OF AT LEAST PART OF THE SLEEVE RELATIVE TO THE SHAFT SO AS TO ENABLE TIGHTENING OF THE JAWS IN THEIR RESPECTIVE POSITION.
Inventors
- 👤 Fritz Schadlich
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |