Article shaping or forming machines
Abstract
Abstract A MACHINE FOR HOT OR COLD FORGING OF A WORKPIECE OR FOR COMPACTING METAL POWDER IN A DIE INTO A SOLID WORKPIECE HAS A SUPPORT AND AT LEAST ONE TOOL RECIPROCATABLE TOWARDS AND AWAY FROM THE SUPPORT, A FIRST LINK IS PIVOTALLY SECURED AT ONE END TO THE TOOL AND IS PIVOTALLY JOINTED AT THE OTHER END TO ONE END OF A SECOND LINK, THE SECOND LINK BEING PIVOTALLY SECURED AT ITS OTHER END TO ANCHOR MEANS WHICH CAN BE DISPLACED TOWARDS AND AWAY FROM THE SUPPORT. THE PIVOT JOINT IS RECIPROCATED THROUGH A POSI- TION IN WHICH THE LINKS ARE IN LINE BETWEEN POSITIONS IN WHICH THE LINKS ARE INCLUDED TO ONE ANOTHER. THE PIVOT JOINT MAY BE RECIPROCATED BY MEANS OF A DOUBLE-ACTING FLUID OPERATED PISTON AND CYLINDER DEVICE. A PLURALITY OF SIMILAR PIVOT JOINTS MAY BE OPERATED SIMULTANEOUSLY AND IN SYNCHRONISM BY CONNECTING ALL THE PIVOT JOINTS TO AN ANNULAR RING WHICH IS RECIPROCATED ABOUT ITS AXIS.
Inventors
- 👤 Keith Ross
Bibliographic Details
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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 |