Patent US3286502A successfully refreshed from Google Patents.
US3286502A
Expired / Lapsed
US
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Side extrusion
Assignee: General Electric Co
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Filing: 1964-03-26
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Granted: 1966-11-22
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Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Cogan Richard Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:03
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21C23/16; B21C23/001; B21C23/08; B21C23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
IN A METHOD OF EXTRUDING FROM A WORKPIECE BILLET THROUGH AN EXTRUSION ORIFICE AN ARTICLE HAVING A CROSSSECTIONAL SHAPE OTHER THAN CIRCULAR NORMAL TO THE AXIS OF EXTRUSION, THE STEP OF: SHAPING THE WORKPIECE BILLET TO PROVIDE THE BILLET WITH END PORTIONS AND WALL PORTIONS EXTENDING LENGTHWISE BETWEEN THE END PORTIONS, EACH CROOS-SECTIONAL DIMENSION OF THE BILLET THROUGH THE WALL PORTION NORMAL TO THE LENGTH BETWEEN THE END PORTION OF THE BILLET BEING SHAPED TO CORRESPOND GENERALLY WITH EACH COMMON CROSS-SECTON THROUGH THE EXTRUSION ORIFICE SO THAT THE GENERALLY LARGER CROSS-SECTIONS THROUGH THE BILLET CORRESPONDS IN GENERAL POSITION WITH THE LARGER CROSS-SECTION THROUGH THE EXTRUSION ORIFICE; POSITIONING THE BILLET IN AN EXTRUSION DIE HAVING BILLET RECEPTACLE SHAPED TO CORRESPOND WITH THE SHAPE OF THE BILLET SO THAT A WALL PORTION INTERMEDIATE THE END PORTIONS IS POSITIONED OPPOSITE AN EXTRUSION ORIFICE IN A WALL OF THE EXTRUSION DIE AND EACH CROSSSECTIONAL DIMENSION OF THE WORKPIECE BILLET NORMAL TO THE WORKPIECE BILLET LENGTH IS IN ALIGNMENT WITH EACH COMMON CROSS-SECTION THROUGH THE EXTRUSION ORIFICE SO THAT THE GENERALLY LARGER CROSS-SECTION THROUGH THE WORKPIECE BILLET ARE IN GENERAL ALIGNMENT WITH THE LARGER CROSS-SECTION THROUGH THE EXTRUSION ORIFICE; AND THEN EXTRUDING THE ARTICLE THROUGH THE EXTRUSION ORIFICE FROM A WALL PORTION OF THE BILLET AT A POINT INTERMEDIATE THE END PORTIONS.
Claim 2
Dependent Claim
217 words
IN A METHOD OF EXTRUDING FROM A WORKPIECE BILLET THROUGH AN EXTRUSION ORIFICE AN ARTICLE HAVING A CROSSSECTIONAL SHAPE OTHER THAN CIRCULAR NORMAL TO THE AXIS OF EXTRUSION, THE STEP OF: SHAPING THE WORKPIECE BILLET TO PROVIDE THE BILLET WITH END PORTIONS AND WALL PORTIONS EXTENDING LENGTHWISE BETWEEN THE END PORTIONS, EACH CROOS-SECTIONAL DIMENSION OF THE BILLET THROUGH THE WALL PORTION NORMAL TO THE LENGTH BETWEEN THE END PORTION OF THE BILLET BEING SHAPED TO CORRESPOND GENERALLY WITH EACH COMMON CROSS-SECTON THROUGH THE EXTRUSION ORIFICE SO THAT THE GENERALLY LARGER CROSS-SECTIONS THROUGH THE BILLET CORRESPONDS IN GENERAL POSITION WITH THE LARGER CROSS-SECTION THROUGH THE EXTRUSION ORIFICE; POSITIONING THE BILLET IN AN EXTRUSION DIE HAVING BILLET RECEPTACLE SHAPED TO CORRESPOND WITH THE SHAPE OF THE BILLET SO THAT A WALL PORTION INTERMEDIATE THE END PORTIONS IS POSITIONED OPPOSITE AN EXTRUSION ORIFICE IN A WALL OF THE EXTRUSION DIE AND EACH CROSSSECTIONAL DIMENSION OF THE WORKPIECE BILLET NORMAL TO THE WORKPIECE BILLET LENGTH IS IN ALIGNMENT WITH EACH COMMON CROSS-SECTION THROUGH THE EXTRUSION ORIFICE SO THAT THE GENERALLY LARGER CROSS-SECTION THROUGH THE WORKPIECE BILLET ARE IN GENERAL ALIGNMENT WITH THE LARGER CROSS-SECTION THROUGH THE EXTRUSION ORIFICE; AND THEN EXTRUDING THE ARTICLE THROUGH THE EXTRUSION ORIFICE FROM A WALL PORTION OF THE BILLET AT A POINT INTERMEDIATE THE END PORTIONS.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |