US3405547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread rolling die with twisted slug forming and removal surface
Assignee: REED ROLLED THREAD DIE CO
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Filing: 1966-09-27
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Granted: 1968-10-15
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Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Roger W Orlomoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
B; B21; B21H; B21H3/00; B21H3/02; B21H3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PAIR OF DIES FOR PRODUCING GIMLET POINTED SCREWS FROM A BLANK BY THE ROLLED THREAD PROCESS, EACH DIE OF SAID PAIR BEING OD IDENTICAL CONFIGURATION AND COMPRISING A VERTICAL PLANE GROOVED SURFACE FOR CREATING THE THREAD ON THE BODY OF THE SCREW, A SLOPING PLANE SURFACE HAVING THEREIN CONTINUATIONS OF SAID GROOVES AND EXTENDING AWAY FROM SAID VERTICAL GROOVED SURFACE FOR CREATING THE THREADED POINTED PORTION OF SAID SCREW, THE LINE OF INTERSECTION OF SAID VERTICAL GROOVED SURFACE AND SAID SLOPING GROOVED SURFACE FORMING A STRAIGHT HEEL LINE, THE SAID SLOPING GROOVED SURFACE HAVING A DIAGONAL LOWER EDGE COMMENCING AT AND EXTENDING DOWNWARDLY AWAY FROM SAID HEEL LINE AT A SMALL ANGLE THERETO, SAID SLOPING GROOVED SURFACE ALSO HAVING ANOTHER LOWER EDGE COMMENCING AT THE END
Claim 2
Dependent Claim
127 words
A PAIR OF DIES FOR PRODUCING GIMLET POINTED SCREWS FROM A BLANK BY THE ROLLED THREAD PROCESS, EACH DIE OF SAID PAIR BEING OD IDENTICAL CONFIGURATION AND COMPRISING A VERTICAL PLANE GROOVED SURFACE FOR CREATING THE THREAD ON THE BODY OF THE SCREW, A SLOPING PLANE SURFACE HAVING THEREIN CONTINUATIONS OF SAID GROOVES AND EXTENDING AWAY FROM SAID VERTICAL GROOVED SURFACE FOR CREATING THE THREADED POINTED PORTION OF SAID SCREW, THE LINE OF INTERSECTION OF SAID VERTICAL GROOVED SURFACE AND SAID SLOPING GROOVED SURFACE FORMING A STRAIGHT HEEL LINE, THE SAID SLOPING GROOVED SURFACE HAVING A DIAGONAL LOWER EDGE COMMENCING AT AND EXTENDING DOWNWARDLY AWAY FROM SAID HEEL LINE AT A SMALL ANGLE THERETO, SAID SLOPING GROOVED SURFACE ALSO HAVING ANOTHER LOWER EDGE COMMENCING AT THE END
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |