US3196654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw rolling die
Assignee: Illinois Tool Works Inc
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Filing: 1962-06-11
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Granted: 1965-07-27
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Gordon Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:07
CPC Classifications
B; B21; B21H; B21H3/00; B21H3/02; B21H3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A THREAD ROLLING DIE COMPRISING A WORKPIECE ENGAGEABLE FACE INCLUDING GENERALLY DIAGONALLY DISPOSED RIBS FOR FORMING HELICAL THREAD CONVOLUTIONS ON A WORKPIECE, SAID RIBS EXTENDING FROM ADJACENT A FIRST LONGITUDINAL MARGIN OF SAID FACE TOWARD A SECOND LONGITUDINAL MARGIN OF SAID FACE, SAID DIE BEING RELIEVED ALONG AND LATERALLY OUTWARDLY OF SAID SECOND MARGIN FROM AN ENTERING END OF THE DIE TOWARD A DISCHARGE END OF THE DIE FOR PROVIDING A RECESS AND ACCOMMODATING MATERIAL OF A WORKPIECE PROJECTING LATERALLY OF SAID SECOND MARGIN DURING A THREAD ROLLING OPERATION, AND SAID DIE INCLUDING MEANS DISPOSED LATERALLY OF SAID SECOND MARGIN IN A DIRECTION AWAY FROM SAID FIRST MARGIN AND TRAVERSING SAID RECESS FOR POSITIVELY ENGAGING SAID PROJECTING MATERIAL OF THE WORKPIECE AND BREAKING SAID MATERIAL FROM THE REMAINDER OR THE WORKPIECE DURING A THREAD ROLLING OPERATION.
Claim 2
Dependent Claim
136 words
A THREAD ROLLING DIE COMPRISING A WORKPIECE ENGAGEABLE FACE INCLUDING GENERALLY DIAGONALLY DISPOSED RIBS FOR FORMING HELICAL THREAD CONVOLUTIONS ON A WORKPIECE, SAID RIBS EXTENDING FROM ADJACENT A FIRST LONGITUDINAL MARGIN OF SAID FACE TOWARD A SECOND LONGITUDINAL MARGIN OF SAID FACE, SAID DIE BEING RELIEVED ALONG AND LATERALLY OUTWARDLY OF SAID SECOND MARGIN FROM AN ENTERING END OF THE DIE TOWARD A DISCHARGE END OF THE DIE FOR PROVIDING A RECESS AND ACCOMMODATING MATERIAL OF A WORKPIECE PROJECTING LATERALLY OF SAID SECOND MARGIN DURING A THREAD ROLLING OPERATION, AND SAID DIE INCLUDING MEANS DISPOSED LATERALLY OF SAID SECOND MARGIN IN A DIRECTION AWAY FROM SAID FIRST MARGIN AND TRAVERSING SAID RECESS FOR POSITIVELY ENGAGING SAID PROJECTING MATERIAL OF THE WORKPIECE AND BREAKING SAID MATERIAL FROM THE REMAINDER OR THE WORKPIECE DURING A THREAD ROLLING OPERATION.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |