US3391585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring spindle
Assignee: Ex-Cell-O Corp
•
Filing: 1966-09-14
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Granted: 1968-07-09
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Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Dorr E Griswold
- 👤 Ronald E Compton
- 👤 Robert W Militzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:02
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03457; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T82/00; Y10T82/12; Y10T82/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A TOOL SPINDLE FOR MACHINING A BORE IN A WORKPIECE, THE COMBINATION, COMPRISING: (A) A SPINDLE HOUSING; (B) A SPINDLE SHAFT MOUNTED IN SAID HOUSING; (C) AN EXPANSIBLE TOOL MEANS OPERATIVELY MOUNTED ON SAID SPINDLE SHAFT; (D) CAM MEANS CARRIED BY SAID SHAFT FOR ADJUSTING SAID TOOL MEANS FOR CONTROLLING THE SIZE OF THE BORE AND FOR RADIALLY ADVANCING AND RETRACTING THE TOOL MEANS; AND, (E) MEANS FOR OPERATING SAID CAM MEANS.
Claim 2
Dependent Claim
73 words
IN A TOOL SPINDLE FOR MACHINING A BORE IN A WORKPIECE, THE COMBINATION, COMPRISING: (A) A SPINDLE HOUSING; (B) A SPINDLE SHAFT MOUNTED IN SAID HOUSING; (C) AN EXPANSIBLE TOOL MEANS OPERATIVELY MOUNTED ON SAID SPINDLE SHAFT; (D) CAM MEANS CARRIED BY SAID SHAFT FOR ADJUSTING SAID TOOL MEANS FOR CONTROLLING THE SIZE OF THE BORE AND FOR RADIALLY ADVANCING AND RETRACTING THE TOOL MEANS; AND, (E) MEANS FOR OPERATING SAID CAM 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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |