Gauge control for products from presses
Abstract
Abstract THIS INVENTION RELATES TO HYDRAULIC PRESSES AND PARTICULARLY TO APPARATUS FOR CONTROLLING GUAGE OF PRODUCTS PRODUCED IN PRESSES INCLUDING A FIXED BOLSTER, AND A MOVABLE BOLSTER OPERATIVELY POSITIONED IN THE PRESS FRAME FOR MOVEMENT TO AND FROM ASSOCIATION WITH THE FIXED BOLSTER FOR FORMING A PRODUCT THEREBETWEEN. A PAIR OF HYDRAULIC PISTON AND CYLINDER MEANS OPERATIVELY CONNECT THE MOVABLE BOLSTER AND THE FRAME AT CORRESPONDING POSITIONS ADJACENT EACH END OF THE MOVABLE BOLSTER WHEREBY PRESSURES EXERTED BY SUCH PISTON AND CYLINDER MEANS CAN BEND END PORTIONS OF THE MOVABLE BOLSTER REVERSELY TO ANY BENDING ACTION CREATED THEREIN BY PRESSURE CLOSING ACTION OF THE MOVABLE BOLSTER WHEREBY THE GAUGE OF THE PRODUCT PRODUCED BETWEEN THE BOLSTERS CAN BE CONTROLLED.
Inventors
- 👤 Daniel W Stephenson
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 |