US3636802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bar-turning machine
Assignee: Teledyne Inc
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Filing: 1969-12-29
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Granted: 1972-01-25
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Expires: 1989-12-29
Abstract
Abstract In U.S. Pat. No. 2,635,499 issued to M. R. Karge, there is described an apparatus for turning slender work. My invention includes improvements on the machine of Karge in that I provide a double tool arrangement for cutting the workpiece or bar from opposite sides and additionally I provide a turret-type template assembly and means for retrieving shaped workpieces by means of reduced air pressure.
Inventors
- 👤 William A Hessinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:33
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/04; B23Q7/047; B23B; B23B3/00; B23B3/16; B23B3/161; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; B23Q7/006; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2521
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
In a bar-turning machine, means includiNg first chuck means for rotating said bar about its axis, carriage means movable in either of opposite directions parallel with said axis, slip chuck means partially tightened around said bar and carried by said carriage means coaxial with said first chuck means and serving to support said bar while allowing rotation thereof, toolholding means fastened to said carriage means adjacent said slip chuck means, a work transfer tube coaxial with said bar and having a rack extending lengthwise of said tube, means mounting said tube for movement toward or away from the shaped end portion of said bar, a motor for driving said rack and tube in either of two opposed directions by means of a pinion on the shaft of said motor and meshed with said rack, and electrical means for controlling said motor.
Claim 2
Dependent Claim
141 words
In a bar-turning machine, means includiNg first chuck means for rotating said bar about its axis, carriage means movable in either of opposite directions parallel with said axis, slip chuck means partially tightened around said bar and carried by said carriage means coaxial with said first chuck means and serving to support said bar while allowing rotation thereof, toolholding means fastened to said carriage means adjacent said slip chuck means, a work transfer tube coaxial with said bar and having a rack extending lengthwise of said tube, means mounting said tube for movement toward or away from the shaped end portion of said bar, a motor for driving said rack and tube in either of two opposed directions by means of a pinion on the shaft of said motor and meshed with said rack, and electrical means for controlling said motor.
Claim 3
Dependent Claim
20 words
The bar-turning machine as described in claim 1 and including means for producing variation of air pressure in said tube.
Claim 4
Dependent Claim
25 words
The bar-turning machine as described in claim 2 and including control means for timing and phasing the operation of said motor and said pressure-variation-producing means.
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |