US3096579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing extruded articles
Assignee: Burgess Norton Manufacturing Co Inc
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Filing: 1959-09-11
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Granted: 1963-07-09
•
Expires: 1979-09-11
Abstract
No abstract record available.
Inventors
- 👤 Gustav M Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:07
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD OF COLD EXTRUDING METAL BLANKS INCLUDING THE STEPS OF CONFINING THE OUTER SURFACE OF THE BLANK, APPLYING AXIAL PRESSURE TO ONE END OF THE CONFINED BLANK WITH A PUNCH SMALLER IN CROSS SECTION THAN THE BLANK END WHILE SUPPORTING THE OPPOSITE END OF THE BLANK WITH A SIMILAR STATIONARY PUNCH WHEREBY THE BLANK EXTRUDES AXIALLY ALONG THE FIRST PUNCH, LIMITING THE EXTENT OF SAID EXTRUSION, APPLYING AXIAL PRESSURE EXTERNALLY CONCENTRIC TO AND IN THE SAME DIRECTION AS SAID FIRST PUNCH, WHEREBY THE OPPOSITE END OF SAID BLANK EXTRUDES AXIALLY ALONG THE STATIONARY PUNCH, LIMITING THE EXTRUSION IN THE SECOND DIRECTION, AND THEN EJECTING THE EXTRUDED BLANK FROM THE ZONE OF CONFINEMENT WHILE DELAYING THE START OF THE NEXT CYCLE A PERIOD OF TIME CONSISTENT WITH THE LENGTH OF THE FINISHED SLUG IN ORDER TO COMPLETE ITS EJECTION.
Claim 2
Independent Claim
139 words
A METHOD OF COLD EXTRUDING METAL BLANKS INCLUDING THE STEPS OF CONFINING THE OUTER SURFACE OF THE BLANK, APPLYING AXIAL PRESSURE TO ONE END OF THE CONFINED BLANK WITH A PUNCH SMALLER IN CROSS SECTION THAN THE BLANK END WHILE SUPPORTING THE OPPOSITE END OF THE BLANK WITH A SIMILAR STATIONARY PUNCH WHEREBY THE BLANK EXTRUDES AXIALLY ALONG THE FIRST PUNCH, LIMITING THE EXTENT OF SAID EXTRUSION, APPLYING AXIAL PRESSURE EXTERNALLY CONCENTRIC TO AND IN THE SAME DIRECTION AS SAID FIRST PUNCH, WHEREBY THE OPPOSITE END OF SAID BLANK EXTRUDES AXIALLY ALONG THE STATIONARY PUNCH, LIMITING THE EXTRUSION IN THE SECOND DIRECTION, AND THEN EJECTING THE EXTRUDED BLANK FROM THE ZONE OF CONFINEMENT WHILE DELAYING THE START OF THE NEXT CYCLE A PERIOD OF TIME CONSISTENT WITH THE LENGTH OF THE FINISHED SLUG IN ORDER TO COMPLETE ITS EJECTION.
References Cited (Backward Citations)
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US1756416A
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DE719483C
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DE750112C
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US2483376A
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US2840890A
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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 |