Patent US3256541A successfully refreshed from Google Patents.
US3256541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tap holder
Assignee: Individual
•
Filing: 1964-06-16
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Granted: 1966-06-21
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 John I Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:32
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/44; B23G1/46; Y; Y10; Y10T; Y10T408/00; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A TAP HOLDER COMPRISING A CYLINDRICAL HOUSING OPEN AT THE FRONT END, MEANS FOR LOCKING A TAP OR THE LIKE IN SAID HOUSING, A REAR WALL ON SAID HOUSING, MEANS FOR MOUNTING SAID HOLDER IN A MACHINE, AND MEANS FOR COUPLING SAID MOUNTING MEANS TO SAID HOUSING REAR WALL, SAID COUPLING MEANS PROVIDING A LOST MOTION BETWEEN SAID HOUSING AND SAID MOUNTING MEANS ON RECIPROCATING ROTATION OF SAID MOUNTING MEANS, SAID COUPLING MEANS PROVIDING AN AXIAL MOVEMENT BETWEEN SAID HOUSING AND SAID MOUNTING MEANS, SAID MOUNTING MEANS INLCUDING A SHANK FOR MOUNTING IN A MACHINE, AN INTEGRAL COLLAR AT THE FRONT OF SAID SHANK, AND A FRONT ANNULAR WALL PORTION ON SAID COLLAR OF THE SAME DIAMETER AS SAID HOUSING, SAID COUPLING MEANS INCLUDING A STUD EXTENDING AXIALLY FROM SAID REAR WALL, SAID STUD HAVING AN ANNULAR GROOVE, SAID MOUNTING MEANS HAVING AN AXIAL OPENING FOR RECEIVING SAID STUD, AND A LOCK PIN EXTENDING CHORDALLY INTO SAID MOUNTING MEANS AND TANGENTIALLY INTO SAID STUD GROOVE TO LOCK SAID HOUSING TO SAID MOUNTING MEANS.
Claim 2
Dependent Claim
173 words
A TAP HOLDER COMPRISING A CYLINDRICAL HOUSING OPEN AT THE FRONT END, MEANS FOR LOCKING A TAP OR THE LIKE IN SAID HOUSING, A REAR WALL ON SAID HOUSING, MEANS FOR MOUNTING SAID HOLDER IN A MACHINE, AND MEANS FOR COUPLING SAID MOUNTING MEANS TO SAID HOUSING REAR WALL, SAID COUPLING MEANS PROVIDING A LOST MOTION BETWEEN SAID HOUSING AND SAID MOUNTING MEANS ON RECIPROCATING ROTATION OF SAID MOUNTING MEANS, SAID COUPLING MEANS PROVIDING AN AXIAL MOVEMENT BETWEEN SAID HOUSING AND SAID MOUNTING MEANS, SAID MOUNTING MEANS INLCUDING A SHANK FOR MOUNTING IN A MACHINE, AN INTEGRAL COLLAR AT THE FRONT OF SAID SHANK, AND A FRONT ANNULAR WALL PORTION ON SAID COLLAR OF THE SAME DIAMETER AS SAID HOUSING, SAID COUPLING MEANS INCLUDING A STUD EXTENDING AXIALLY FROM SAID REAR WALL, SAID STUD HAVING AN ANNULAR GROOVE, SAID MOUNTING MEANS HAVING AN AXIAL OPENING FOR RECEIVING SAID STUD, AND A LOCK PIN EXTENDING CHORDALLY INTO SAID MOUNTING MEANS AND TANGENTIALLY INTO SAID STUD GROOVE TO LOCK SAID HOUSING TO SAID MOUNTING MEANS.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |