US3219355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder
Assignee: Kyoritsu Seiki Corp
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Filing: 1963-10-04
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Granted: 1965-11-23
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Fujinuma Shigemitsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1071; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T279/17957; Y10T279/17965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A TOOL HOLDER FOR ATTACHING A CUTTER TOOL OR TOOL ADAPTER TO A MAIN DRIVING SPINDLE OR THE LIKE, COMPRISING A DRIVING MEMBER ADAPTED TO BE MOUNTED ON A SPINDLE AND HAVING A TAPERED SOCKET THEREIN, SAID DRIVING MEMBER HAVING SPIRAL SLOTS THEREIN OPENING INTO SAID SOCKET, DRIVING BALLS ROTATABLY MOUNTED IN SAID SLOTS, A DRIVING NUT ROTATABLY MOUNTED ON THE OUTSIDE OF SAID DRIVING MEMBER FOR MOVEMENT AXIALLY OF SAID DRIVING MEMBER, SAID DRIVING NUT HAVING GROOVES ON THE INNER PERIPHERAL SURFACE THEREOF IN WHICH SAID DRIVING BALLS ARE ENGAGED, AND A TAPERED MEMBER ADAPTED TO FORM THE END OF A TOOL OR A TOOL HOLDER OR THE LIKE, SAID TAPERED MEMBER BEING IN SAID TAPERED SOCKET AND HAVING AN ANNULAR GROOVE THEREIN AT A POSITION OPPOSED TO SAID SPIRAL SLOTS FOR RECEIVING SAID DRIVING BALLS, WHEREBY SAID TAPERED MEMBER CAN BE FIXED WITHIN SAID TAPERED SOCKET BY ROTATING AND SHIFTING SAID DRIVING BALLS AXIALLY BY ROTATING SAID DRIVING NUT IN ONE DIRECTION AND CAN BE RELEASED FROM SAID TAPERED SOCKET BY ROTATING SAID DRIVING NUT IN THE OPPOSITE DIRECTION.
Claim 2
Dependent Claim
181 words
A TOOL HOLDER FOR ATTACHING A CUTTER TOOL OR TOOL ADAPTER TO A MAIN DRIVING SPINDLE OR THE LIKE, COMPRISING A DRIVING MEMBER ADAPTED TO BE MOUNTED ON A SPINDLE AND HAVING A TAPERED SOCKET THEREIN, SAID DRIVING MEMBER HAVING SPIRAL SLOTS THEREIN OPENING INTO SAID SOCKET, DRIVING BALLS ROTATABLY MOUNTED IN SAID SLOTS, A DRIVING NUT ROTATABLY MOUNTED ON THE OUTSIDE OF SAID DRIVING MEMBER FOR MOVEMENT AXIALLY OF SAID DRIVING MEMBER, SAID DRIVING NUT HAVING GROOVES ON THE INNER PERIPHERAL SURFACE THEREOF IN WHICH SAID DRIVING BALLS ARE ENGAGED, AND A TAPERED MEMBER ADAPTED TO FORM THE END OF A TOOL OR A TOOL HOLDER OR THE LIKE, SAID TAPERED MEMBER BEING IN SAID TAPERED SOCKET AND HAVING AN ANNULAR GROOVE THEREIN AT A POSITION OPPOSED TO SAID SPIRAL SLOTS FOR RECEIVING SAID DRIVING BALLS, WHEREBY SAID TAPERED MEMBER CAN BE FIXED WITHIN SAID TAPERED SOCKET BY ROTATING AND SHIFTING SAID DRIVING BALLS AXIALLY BY ROTATING SAID DRIVING NUT IN ONE DIRECTION AND CAN BE RELEASED FROM SAID TAPERED SOCKET BY ROTATING SAID DRIVING NUT IN THE OPPOSITE DIRECTION.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |