US3222904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for extrusive rolling of non-cylindrical hollow bodies
Assignee: N T W MISSILE ENGINEERING Inc
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Filing: 1962-05-14
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Granted: 1965-12-14
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Adolph W Ernestus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:27
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B21D22/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
EXTRUSIVE ROLLING APPARATUS COMPRISING: A FEMALE FORMING DIE HAVING AN INNER WALL FLARING TOWARD AN OPEN LARGE END; MEANS HOLDING THE DIE AND ROTATING IT; A ROLLER UNIT INCLUDING A SLIDE AND A FORMING ROLLER JOURNALLED THEREIN ON AN AXIS GENERALLY PARALLEL TO THE CROSS-SECTIONAL CONTOUR OF SAID INNER WALL IN A PLANE OF THE AXIS OF ROTATION; A GUIDE IN WHICH SAID SLIDE IS GUIDED FOR MOVEMENT IN AN EXTRUSION PATH PARALLEL TO SAID CROSS-SECTIONAL CONTOUR; A HOLDER IN WHICH SAID GUIDE IS MOUNTED FOR ADJUSTMENT GENERALLY RADIALLY OF THE AXIS OF DIE ROTATION, A POWER-OPERATED ACTUATOR FOR MOVING SAID ROLLER SLIDE ALONG SAID EXTRUSION PATH; AND MEANS FOR ADJUSTING SAID GUIDE RADIALLY TO ADJUST SAID ROLLER CLOSER TO SAID INNER WALL OF THE DIE FOR REDUCING THE WALL THICKNESS OF THE WORK.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |