US3098292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming generally cylindrical parts from thick metal stock
Assignee: NL Industries Inc
•
Filing: 1959-09-02
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Granted: 1963-07-23
•
Expires: 1979-09-02
Abstract
No abstract record available.
Inventors
- 👤 Bunk Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:16
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9423
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A METHOD OF PRODUCING A PLURALITY OF GENERALLY CYLINDRICAL ARTICLES FROM DEFORMABLE SHEET STOCK, SAID ARTICLES BEING OF A UNIFORM, PREDETERMINED DIAMETER THROUGHOUT THEIR LENGTHS, SAID METHOF OF COMPRISING: SUPPORTING THE SHEET STOCK PARALLEL TO A PLANAR DIE FACE, SEVERING A FIRST CYLINDRICAL PART HAVING A DIAMETER GREATER THAN THE PREDETERMINED DIAMETER FROM SAID SHEET STOCK BY MOVING A CIRCULAR CUTTING EDGE HAVING A DIAMETER GREATER THAN SAID PREDETERMINED DIAMETER THROUGH SAID SHEET STOCK AND TOWARD THE DIE FACE, SIMULTANEOUSLY REDUCING THE DIAMETER OF A FIRST PORTION OF SAID PART REMOTE FROM SAID SHEET STOCK AND SAID CUTTING EDGE OF SAID PREDETERMINED DIAMETER BY FORCING SAID FIRST PORTION THROUGH A FLARED OPENING AT THE DIE FACE AND DIRECTLY INTO A CYLINDRICAL REDTRICTION HAVING A DIAMETER SUBSTANTIALLY EQUAL TO
References Cited (Backward Citations)
GB191223939A
Cited
GB336803A
Cited
US2275438A
Cited
FR895350A
Cited
US2419862A
Cited
US2404793A
Cited
US2473371A
Cited
GB653195A
Cited
US2786267A
Cited
US2879887A
Cited
US2907454A
Cited
US2953247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |