Patent US3096881A successfully refreshed from Google Patents.
US3096881A
Expired / Lapsed
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Lubricating composition and method for the hot extrusion of metals
Assignee: Westinghouse Electric Corp
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Filing: 1956-12-20
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Granted: 1963-07-09
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Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Roy W Tombaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:50
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN THE METHOD OF EXTRUDING A METAL BILLET FROM AN EXTRUSION CONTAINER HAVING A BORE THERETHROUGH TO ACCOMMODATE THE METAL BILLET AND A DIET AT ONE END OF THE BORE, THE DIE HAVING AN OPENING THROUGH WHICH THE BILLET IS EXTRUDED, THE STEPS COMPRISING APPLYING A LAYER OF A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF, BY VOLUME, 1 PART OF FINELY DIVIDED MOLYBDENUM DISULFIED AND FROM 2 PARTS TO 6 PARTS OF FINELY DIVIDED LEAD TO THE SURFACE OF THE BORE AND TO THE SURFACES OF THE DIE WITH WHICH THE BILLET MAKES CONTACT DURING EXTRUSION, HEATING THE BILLET TO A TEMPERATURE OF FROM 1500*F. TO 2400*F. AND INTRODUCING IT INTO THE BORE OF THE EXTRUSION CONTAINER AND EXTRUDING THE BILLET UNDER PRESSURE.
Claim 2
Dependent Claim
122 words
IN THE METHOD OF EXTRUDING A METAL BILLET FROM AN EXTRUSION CONTAINER HAVING A BORE THERETHROUGH TO ACCOMMODATE THE METAL BILLET AND A DIET AT ONE END OF THE BORE, THE DIE HAVING AN OPENING THROUGH WHICH THE BILLET IS EXTRUDED, THE STEPS COMPRISING APPLYING A LAYER OF A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF, BY VOLUME, 1 PART OF FINELY DIVIDED MOLYBDENUM DISULFIED AND FROM 2 PARTS TO 6 PARTS OF FINELY DIVIDED LEAD TO THE SURFACE OF THE BORE AND TO THE SURFACES OF THE DIE WITH WHICH THE BILLET MAKES CONTACT DURING EXTRUSION, HEATING THE BILLET TO A TEMPERATURE OF FROM 1500*F. TO 2400*F. AND INTRODUCING IT INTO THE BORE OF THE EXTRUSION CONTAINER AND EXTRUDING THE BILLET UNDER PRESSURE.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |