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Patent US3566516A successfully refreshed from Google Patents.
US3566516A
Expired / Lapsed
US
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Multiple spindle tool changer
Assignee: Kearney and Trecker Corp
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Filing: 1968-04-23
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Granted: 1971-03-02
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Expires: 1988-04-23
Abstract
Abstract THE DISCLOSURE RELATES TO A MULTIPLE SPINDLE PROFILER FOR PRODUCING A PLURALITY OF MILLING OPERATIONS SIMULTANEOUSLY ON THE SAME OR IDENTICAL WORKPIECES AND INCLUDES KEYLOCK MECHANISMS FOR A POSITIVE DRIVE BETWEEN THE CUTTERS AND THE SPINDLES WITH ORIENTING MECHANISM TO STOP THE SPINDLES IN A PARTICULAR POSITION TO COOPERATE WITH TOOLS BROUGHT TO THE SPINDLES BY A TOOL CHANGE MECHANISM. THE TOOL CHANGE MECHANISM IS ADAPTED TO CHANGE THE TOOLS THAT HAVE BEEN USED FOR TOOLS THAT ARE GOING TO BE USED, AND THE MACHINE AS A WHOLE AS WELL AS THE TOOL CHANGING OPERATION, ARE ALL AUTOMATICALLY CARRIED OUT UNDER THE CONTROL OF A TAPE.
Inventors
- 👤 Wallace E Brainard
- 👤 Erich F Drechsler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:11
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/157; B23Q3/15706; Y; Y10; Y10T; Y10T483/00; Y10T483/12; Y10T483/13; Y10T483/17; Y10T483/1733; Y10T483/179; Y10T483/1793; Y10T483/1795
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |