Bar grinder
Abstract
Abstract BARS ARE GROUND IN THE MACHINE BY BEING ADVANCED ALONG A HORIZONTALLY DISPOSED WORK REST PAST A GRINDING HEAD. THE BARS ARE ADVANCED BY A CONVEYOR HAVING A PLATEN EXTENDING ALONG ONE SIDE OF THE WORK REST. POWER MEANS IS PROVIDED FOR MOVING THE GRINDING HEAD TOWARD AND FROM THE CONVEYOR TO MOVE THE GRINDING HEAD ELEMENT INTO AND OUT OF GRINDING ENGAGEMENT WITH THE ADVANCING BARS. SENSORS ARE PROVIDED FOR EFFECTING MOVEMENT OF THE HEAD, WHEREBY AN AREA OF PREDETERMINED LENGTH IS GROUND ON EACH BAR IN A PRESELECTED AREA. THE CONVEYOR PLATEN MAY BE TILED TO GRIND THE BARS ON A BEVEL, AND THE GRINDING HEAD IS TILTABLE FOR GRINDING RELATIVELY NARROW BEVELS ALONG THE TOP AND BOTTOM EDGES OF THE BARS.
Inventors
- 👤 Brian M Schaller
- 👤 Robert L Schaller
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |