Patent US3567270A successfully refreshed from Google Patents.
US3567270A
Expired / Lapsed
US
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Variable pressure grab hand
Assignee: ThyssenKrupp Budd Co
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Filing: 1969-08-06
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Granted: 1971-03-02
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Expires: 1989-08-06
Abstract
Abstract A CAM OPERATED GRAB HAND FOR GRASPING AND HOLDING A WORK PIECE FOR REMOVAL OF THE WORK PIECE FROM A METAL WORKING MACHINE. ONE FINGER OF THE GRAB HAND IS MOUNTED ON AND MOVABLE WITH A CONTROL ARM AND THE OTHER FINGER IS PIVOTALLY SECURED TO THE FIRST FINGER FOR BEING PIVOTED INTO ENGAGEMENT THEREWITH BY A CAM SECURED TO THE CONTROL ARM. A SPRING BIASING MEANS MAY BE ADJUSTED TO VARY THE PRESSURE OF THE GRIP APPLIED TO THE WORK PIECE BY THE PIVOTAL ENGAGEMENT OF THE SECOND FINGER WITH THE FIRST.
Inventors
- 👤 Charles C Halberstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:19
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/10; B21J; B21J13/00; B21J13/08; B23; B23Q; B23Q7/00; B23Q7/04; B23Q7/043
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 |