Patent US3856518A successfully refreshed from Google Patents.
Patent US3566642A successfully refreshed from Google Patents.
US3566642A
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US
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Hexagonal rod die construction having an inherent die surface lubrication system
Assignee: Ford Motor Co
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Filing: 1968-09-18
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Granted: 1971-03-02
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Expires: 1988-09-18
Abstract
Abstract A DIE CONSTRUCTION COMPRISING INCREMENTAL RODS ARRANGED IN REGISTRY, THE ENDS OF THE RODS FORMING INCREMENTAL DIE SURFACE AREAS, SAID RODS BEING MACHINED INDIVIDUALLY PRIOR TO ASSEMBLY WITH A PREDETERMINED LENGTH AND WITH END SURFACES HAVING SURFACE NORMALS SITUATED IN PRECALIBRATED DIRECTIONS, THE MACHINING PROCEDURE INCLUDING THE REMOVAL OF METAL FROM SELECTED RODS TO PROVIDE FLUID FLOW PASSAGES WHICH COMMUNICATE EITHER WITH A LUBRICATION SUPPLY MANIFOLD WHEREBY LUBRICANT IS SELECTIVELY DISTRIBUTED TO SELECTED REGIONS OF THE DIE SURFACE OR WITH AN AIR VENT SPACE WHEREBY AIR ENTRAPPED BY THE WORKPIECE MAY BE VENTED.
Inventors
- 👤 Foster E Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:05
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/24; B23P15/246; B21; B21D; B21D37/00; B21D37/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |