Patent US3134997A successfully refreshed from Google Patents.
US3134997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload release tap holder
Assignee: AT&T Inc
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Filing: 1961-08-15
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Granted: 1964-06-02
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Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Henry C Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:44
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/04; F16D7/042; F16D7/046; B; B23; B23B; B23B31/00; B23B31/02; B23B31/08; B23B31/083; B23B31/086; Y; Y10; Y10T; Y10T408/00; Y10T408/70; Y10T408/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
234 words
IN AN OVERLOAD RELEASE TAP HOLDER FOR JOGGING AN OBSTRUCTION LOOSE FROM A HOLE BEING TAPPED IN A ROTATING WORKPIECE, A TUBULAR HOUSING HAVING A LONGITUDINAL SLOT, A CLUTCH PLATE HAVING A TAPERED RECESS FORMED IN ONE FACE SLIDABLY MOUNTED IN SAID HOUSING, A STOP PIN MOUNTED ON SAID CLUTCH PLATE AND EXTENDING INTO SAID SLOT, A CHUCK SLIDABLY AND ROTATABLY MOUNTED IN SAID HOUSING FOR HOLDING A TAP, SPRING MEANS FOR URGING SAID CHUCK AND CLUTCH TOGETHER, A TAPERED CLUTCH PIN SLIDABLY MOUNTED IN SAID CHUCK AND EXTENDING INTO THE RECESS IN SAID CLUTCH, AN EXTERNALLY THREADED RING SLIDABLY MOUNTED ON SAID HOUSING, A LIMIT PIN MOUNTED ON SAID RING AND DEPENDING INTO SAID SLOT FOR ENGAGING SAID STOP PIN TO LIMIT MOVEMENT OF SAID CLUTCH PLATE AS THE CHUCK ADVANCES DURING TAPPING TO COMPRESS SAID SPRING MEANS AND WITHDRAW THE CLUTCH PIN FROM THE RECESS TO DISENGAGE SAID CHUCK FROM SAID CLUTCH PLATE, A THREADED COLLAR ROTATABLY MOUNTED ABOUT SAID HOUSING AND COOPERATING WITH THE THREADED RING FOR LONGITUDINALLY ADJUSTING THE LIMIT PIN IN THE LONGITUDINAL SLOT, MEANS FOR ADVANCING THE HOUSING TO MOVE THE TAP INTO A ROTATING WORKPIECE, AND A SPRING ENGAGING AND URGING THE CLUTCH PIN INTO THE RECESS WITH A PREDETERMINED FORCE WHICH IS OVERCOME BY THE TAP ENGAGING AN OBSTRUCTION FOR INTERMITTENTLY DISENGAGING AND REENGAGING THE CLUTCH PIN WITH THE RECESS UNTIL THE OBSTRUCTION IS JOGGED FREE.
Claim 2
Dependent Claim
234 words
IN AN OVERLOAD RELEASE TAP HOLDER FOR JOGGING AN OBSTRUCTION LOOSE FROM A HOLE BEING TAPPED IN A ROTATING WORKPIECE, A TUBULAR HOUSING HAVING A LONGITUDINAL SLOT, A CLUTCH PLATE HAVING A TAPERED RECESS FORMED IN ONE FACE SLIDABLY MOUNTED IN SAID HOUSING, A STOP PIN MOUNTED ON SAID CLUTCH PLATE AND EXTENDING INTO SAID SLOT, A CHUCK SLIDABLY AND ROTATABLY MOUNTED IN SAID HOUSING FOR HOLDING A TAP, SPRING MEANS FOR URGING SAID CHUCK AND CLUTCH TOGETHER, A TAPERED CLUTCH PIN SLIDABLY MOUNTED IN SAID CHUCK AND EXTENDING INTO THE RECESS IN SAID CLUTCH, AN EXTERNALLY THREADED RING SLIDABLY MOUNTED ON SAID HOUSING, A LIMIT PIN MOUNTED ON SAID RING AND DEPENDING INTO SAID SLOT FOR ENGAGING SAID STOP PIN TO LIMIT MOVEMENT OF SAID CLUTCH PLATE AS THE CHUCK ADVANCES DURING TAPPING TO COMPRESS SAID SPRING MEANS AND WITHDRAW THE CLUTCH PIN FROM THE RECESS TO DISENGAGE SAID CHUCK FROM SAID CLUTCH PLATE, A THREADED COLLAR ROTATABLY MOUNTED ABOUT SAID HOUSING AND COOPERATING WITH THE THREADED RING FOR LONGITUDINALLY ADJUSTING THE LIMIT PIN IN THE LONGITUDINAL SLOT, MEANS FOR ADVANCING THE HOUSING TO MOVE THE TAP INTO A ROTATING WORKPIECE, AND A SPRING ENGAGING AND URGING THE CLUTCH PIN INTO THE RECESS WITH A PREDETERMINED FORCE WHICH IS OVERCOME BY THE TAP ENGAGING AN OBSTRUCTION FOR INTERMITTENTLY DISENGAGING AND REENGAGING THE CLUTCH PIN WITH THE RECESS UNTIL THE OBSTRUCTION IS JOGGED FREE.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |