Hydraulic feeding device for a honing tool
Abstract
Abstract THE SPECIFICATION DISCLOSES A DEVICE FOR HONING IN WHICH A HONING TOOL IS ROTATED AND, WHILE ROTATING, IS EXPANDED INTO ENGAGEMENT WITH THE WORK. A HYDRAULIC MOTOR EFFECTS EXPANSION OF THE HOUSING TOOL AND WHEN THE HOMING TOOL ENGAGES THE WORK AND IS RETARDED IN ROTATION THEREBY, A ROTARY VALVE IS CLOSED TO INTERRUP THE DRAINING OF FLUID FROM THE HYDRAULIC MOTOR AND THAEREBY HALT THE EXPANSION OF THE TOOL. FURTHER EXPANSION OF THE TOOL DURING A WORK OPERATION IS EFFECTED BY ANOTHER VALVE WHICH PERMITS CONTROLLED INCREMENTAL DRAINING OF FLUID FROM THE HYDRAULIC MOTOR. REVERSING OF THE SUPPLY OF FLUIF TO THE HYDRAULIC MOTOR PERMITS COLLASPING OF THE TOOL AT THE END OF A WORK OPERATION.
Inventors
- 👤 Christoph W Gehring
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |