Lapping machine
Abstract
Abstract A LAPPING MACHINE WHEREIN A SINGLE RING-SHAPED ROTARY LAP SUPPORTS SEVERAL RING-SHAPED ADAPTORS WHICH ACCOMMODATE WORK HOLDERS FOR WORKPIECES RESTING ON THE LAPPING SURFACE OF THE LAP. THE ADAPTORS HELD AGAINST ROTATION WITH THE LAP BY A DISK WHICH IS COAXIAL WITH THE LAP AND BY ONE OR MORE ROLLERS WHICH ARE MOUNTED ON ARMS CARRIED BY THE FRAME OF THE LAPPING MACHINE. THE PERIPHERAL SURFACE OF EACH ADAPTOR ABUTS AGAINST THE DISK AND AGAINST THE RESPECTIVE ROLLER OR ROLLERS. THE AXIAL POSITION OF THE DISK AND/OR THE AXIAL POSITIONS OF THE ROLLERS ARE ADJUSTABLE TO THEREBY CHANGE THE PRESSURE BETWEEN THE WORKPIECES AND THE INNER OR OUTER PORTIONS OF THE LAPPING SURFACE. IN THIS WAY, UNEVEN WEAR ON SELECTED PORTION OR PORTIONS OF THE LAPPING SURFACE CAN BE ELIMINATED OR INTENTIONALLY BROUGHT ABOUT BY APPROPRIATE ADJUSTMENT OF THE DISK AND/OR ROLLERS.
Inventors
- 👤 Hellmut Ebner
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |