US3214951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rolling teeth on tubular elements
Assignee: Michigan Tool Co
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Filing: 1963-03-11
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Granted: 1965-11-02
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Willard B Mccardell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:27
CPC Classifications
B; B21; B21H; B21H5/00; B21H5/02; B21H5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A MACHINE FOR FORMING EXTERNAL TEETH ADJACENT ONE END OF A TUBULAR CYLINDRICAL ELEMENT, A PLURALITY OF TOOTHFORMING TOOLS HAVING WORKING SURFACES MOUNTED IN SPACED RELATIONSHIP ON OPPOSITE SIDES OF THE TUBULAR ELEMENT ADJACENT SAID ONE END, MEANS FOR MOVING SAID TOOLS TRANSVERSELY TO THE ELEMENT AXIS, AND SUPPORT MEANS SUPPORTING SAID TUBULR ELEMENT FOR ROTATION ABOUT ITS LONGITUDINAL AXIS, SAID SUPPORT MEANS INCLUDING CONFINING MEANS SURROUNDING THE PERIPHERY OF ONE END PORTION OF THE TUBULAR ELEMENT, SAID CONFINING MEANS COMPRISING AN AXIALLY EXTENDING FLANGE HAVING AN INTERNAL CYLINDRICAL SURFACE WITH SUBSTANTIALLY THE SAME DIAMETER AS THE EXTERNAL SURFACE OF SAID TUBULAR ELEMENT AND IN CONTINUOUS ENGAGEMENT THEREWITH AROUND THE ENTIRE PERIPHERY OF SAID TUBULAR ELEMENT SO AS TO CONFINE SAID TUBULAR ELEMENT AND PREVENT ANY DEFORMATION THEREOF WHILE SAID TEETH ARE BEING FORMED, AND MANDREL MEANS INTERNALLY SUPPORTING SAID ONE END PORTION ADJACENT SAID WORKING SURFACES OF SAID TOOLS.
Claim 2
Dependent Claim
151 words
IN A MACHINE FOR FORMING EXTERNAL TEETH ADJACENT ONE END OF A TUBULAR CYLINDRICAL ELEMENT, A PLURALITY OF TOOTHFORMING TOOLS HAVING WORKING SURFACES MOUNTED IN SPACED RELATIONSHIP ON OPPOSITE SIDES OF THE TUBULAR ELEMENT ADJACENT SAID ONE END, MEANS FOR MOVING SAID TOOLS TRANSVERSELY TO THE ELEMENT AXIS, AND SUPPORT MEANS SUPPORTING SAID TUBULR ELEMENT FOR ROTATION ABOUT ITS LONGITUDINAL AXIS, SAID SUPPORT MEANS INCLUDING CONFINING MEANS SURROUNDING THE PERIPHERY OF ONE END PORTION OF THE TUBULAR ELEMENT, SAID CONFINING MEANS COMPRISING AN AXIALLY EXTENDING FLANGE HAVING AN INTERNAL CYLINDRICAL SURFACE WITH SUBSTANTIALLY THE SAME DIAMETER AS THE EXTERNAL SURFACE OF SAID TUBULAR ELEMENT AND IN CONTINUOUS ENGAGEMENT THEREWITH AROUND THE ENTIRE PERIPHERY OF SAID TUBULAR ELEMENT SO AS TO CONFINE SAID TUBULAR ELEMENT AND PREVENT ANY DEFORMATION THEREOF WHILE SAID TEETH ARE BEING FORMED, AND MANDREL MEANS INTERNALLY SUPPORTING SAID ONE END PORTION ADJACENT SAID WORKING SURFACES OF SAID TOOLS.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |