Patent US3138974A successfully refreshed from Google Patents.
US3138974A
Expired / Lapsed
US
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Spindle selector for machine having a turret head
Assignee: BURGMASTER CORP
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Filing: 1960-05-23
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Granted: 1964-06-30
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Burg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:40
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/16; B23B39/20; B23B39/205; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1453; Y10T74/1488; Y10T82/00; Y10T82/25; Y10T82/2572; Y10T82/2574; Y10T82/2581
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
THE COMBINATION INCLUDING THE FOLLOWING ELEMENTS: A ROTATABLE HEAD CARRYING TOOL SPINDLES EQUIANGULARLY SPACED AROUND THE AXIS OF THE ANGULAR MOVEMENT OF THE HEAD; MEANS FOR SEQUENTIALLY INDEXING THE HEAD SO AS TO BRING THE SPINDLES SUCCESSIVELY INTO EFFECTIVE OPERATIVE POSITION; MEANS FOR MOVING THE HEAD TOWARD AND FROM THE WORK; A FIRST ELECTRIC CIRCUIT FOR CONTROLLING THE INDEXING MOVEMENT OF THE HEAD; A SECOND ELECTRIC CIRCUIT FOR CONTROLLING THE MOVEMENT OF THE HEAD FIRST TOWARD AND THEN FROM THE WORK; MEANS SELECTING THE HEAD POSITION AT WHICH THE SECOND CIRCUIT IS EFFECTIVE FOR A CYCLE OF MOVEMENT OF THE HEAD TOWARD AND FROM THE WORK; AND MEANS RENDERING THE FIRST CIRCUIT INEFFECTIVE WHILE THE SECOND CIRCUIT IS EFFECTIVE.
Claim 2
Dependent Claim
119 words
THE COMBINATION INCLUDING THE FOLLOWING ELEMENTS: A ROTATABLE HEAD CARRYING TOOL SPINDLES EQUIANGULARLY SPACED AROUND THE AXIS OF THE ANGULAR MOVEMENT OF THE HEAD; MEANS FOR SEQUENTIALLY INDEXING THE HEAD SO AS TO BRING THE SPINDLES SUCCESSIVELY INTO EFFECTIVE OPERATIVE POSITION; MEANS FOR MOVING THE HEAD TOWARD AND FROM THE WORK; A FIRST ELECTRIC CIRCUIT FOR CONTROLLING THE INDEXING MOVEMENT OF THE HEAD; A SECOND ELECTRIC CIRCUIT FOR CONTROLLING THE MOVEMENT OF THE HEAD FIRST TOWARD AND THEN FROM THE WORK; MEANS SELECTING THE HEAD POSITION AT WHICH THE SECOND CIRCUIT IS EFFECTIVE FOR A CYCLE OF MOVEMENT OF THE HEAD TOWARD AND FROM THE WORK; AND MEANS RENDERING THE FIRST CIRCUIT INEFFECTIVE WHILE THE SECOND CIRCUIT IS EFFECTIVE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |