US3220087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine turning machine
Assignee: Douglas and Lomason Co
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Filing: 1963-08-30
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Granted: 1965-11-30
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/20; B24B7/22; B24B7/224; B24B1/00; B24B41/00; B24B41/002; Y; Y10; Y10T; Y10T29/00; Y10T29/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
IN AN ENGINE TURNING MACHINE, A HORIZONTALLY MOVABLE WORK SUPPORTING TABLE, A VERTICALLY RECIPROCABLE TOOL HEAD POSITIONED ABOVE AND STRADDLING SAID TABLE AND THE WORK THEREON, A PLURALITY OF ROTARY TOOL SPINDLES RECIPROCABLY MOUNTED ON SAID TOOL HEAD AND ENGAGEABLE WITH THE WORK EFFECTING AN ENGINE TURNING PATTERN THEREON, DRIVE MEANS FOR SAID TABLE AND SAID TOOL HEAD FOR INDEXING SAID TABLE FORWARDLY A PREDETERMINED DISTANCE AND FOR EFFECTING RECIPROCATION OF SAID TOOL HEAD IN TIMED RELATION TO SAID MOVEMENT OF SAID TABLE DURING EACH CYCLE OF OPERATION, SAID DRIVE MEANS COMPRISING A DRIVE SHAFT DISPOSED BENEATH AND EXTENDING TRANSVERSELY OF SAID TABLE, AN ECCENTRIC ON SAID DRIVE SHAFT, A CRANK ARM CONNECTING SAID ECCENTRIC AND SAID TOOL HEAD FOR RECIPROCATING THE LATTER DURING EACH REVOLUTION OF SAID DRIVE SHAFT, A TOOTHED RACK SECURED TO AND EXTENDING LENGTHWISE OF THE TABLE, A SECOND ECCENTRIC ON SAID DRIVE SHAFT, AN INDEXING DOG MOUNTED ON SAID ECCENTRIC SO AS TO BE OSCILLATED ONCE DURING EACH SHAFT REVOLUTION, A TOOTH ON SAID INDEXING DOG ENGAGEABLE WITH SAID RACK FOR DRIVING SAID TABLE FORWARDLY DURING EACH CYCLE OF OPERATION, SPRING MEANS URGING SAID INDEXING DOG INTO ENGAGEMENT WITH SAID RACK, A HOLDING DOG
Claim 2
Dependent Claim
199 words
IN AN ENGINE TURNING MACHINE, A HORIZONTALLY MOVABLE WORK SUPPORTING TABLE, A VERTICALLY RECIPROCABLE TOOL HEAD POSITIONED ABOVE AND STRADDLING SAID TABLE AND THE WORK THEREON, A PLURALITY OF ROTARY TOOL SPINDLES RECIPROCABLY MOUNTED ON SAID TOOL HEAD AND ENGAGEABLE WITH THE WORK EFFECTING AN ENGINE TURNING PATTERN THEREON, DRIVE MEANS FOR SAID TABLE AND SAID TOOL HEAD FOR INDEXING SAID TABLE FORWARDLY A PREDETERMINED DISTANCE AND FOR EFFECTING RECIPROCATION OF SAID TOOL HEAD IN TIMED RELATION TO SAID MOVEMENT OF SAID TABLE DURING EACH CYCLE OF OPERATION, SAID DRIVE MEANS COMPRISING A DRIVE SHAFT DISPOSED BENEATH AND EXTENDING TRANSVERSELY OF SAID TABLE, AN ECCENTRIC ON SAID DRIVE SHAFT, A CRANK ARM CONNECTING SAID ECCENTRIC AND SAID TOOL HEAD FOR RECIPROCATING THE LATTER DURING EACH REVOLUTION OF SAID DRIVE SHAFT, A TOOTHED RACK SECURED TO AND EXTENDING LENGTHWISE OF THE TABLE, A SECOND ECCENTRIC ON SAID DRIVE SHAFT, AN INDEXING DOG MOUNTED ON SAID ECCENTRIC SO AS TO BE OSCILLATED ONCE DURING EACH SHAFT REVOLUTION, A TOOTH ON SAID INDEXING DOG ENGAGEABLE WITH SAID RACK FOR DRIVING SAID TABLE FORWARDLY DURING EACH CYCLE OF OPERATION, SPRING MEANS URGING SAID INDEXING DOG INTO ENGAGEMENT WITH SAID RACK, A HOLDING DOG
References Cited (Backward Citations)
US1792829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |