Break-away shaft
Abstract
Abstract THE SUBJECT DISCLOSURE RELATES TO A BREAK-AWAY SHAFT WHICH PERMITS A TOOL SUCH AS A BRUSH, GRINDING OR POLISHING WHEEL OR THE LIKE TO BE REMOVED FROM A MACHINE SHAFT WITHOUT THE NECESSITY OF DISASSEMBLING THE MACHINE AND REMOVING THE SHAFT FROM THE MACHINE BEARINGS. THE BREAK-AWAY SHAFT COMPRISES A CENTER SHAFT HAVING SHAPED ENDS WHICH ARE INSERTED INTO TWO SHAFT STUBS HAVING CORRESPONDING SHAPED RECESSES SO THAT A TORQUE TRANSFER JOINT IS FORMED. THE SHAFT STUBS ARE SEPARATLY MOUNTED IN SPACED MACHINE BEARINGS, WITH ONE OF THE SHAFT STUBS EXTENDING THROUGH ITS BEARING MOUNTING FOR ENGAGEMENT BY A DRIVING MEANS. A REMOVABLE SECURING COLLAR ENCIRCLES EACH JOINT TO HOLD THE JOINT IN POSITION AND THE CENTER SHAFT PORTION IN ALIGNMENT WITH THE STUBS. A HOLDING MEMBER IS CARRIED ON EACH END OF THE CENTER SHAFT TO SECURE A TOOL MOUNTED ON THE CENTER SHAFT.
Inventors
- 👤 Lawrence Pendergast
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |