US Patent: 4,651,598
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| Self-adjusting utility plier
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Patentee:
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| William A. Warheit (exact or similar names) - Butler, PA |
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Patent Dates:
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| Applied: |
Sep. 26, 1984 |
| Granted: |
Mar. 24, 1987 |
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Patent Pictures:
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1 | 2 | 3
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Patent 4651598 - edited drawing |
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Stan Schulz
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Description: |
| 1st of two patents noted on CRAFTSMAN ROBO-GRIP(R) pliers. (The second is 4,662,252). Contract manufacturer for the CRAFTSMAN ROBO-GRIP(R) not identified. The same patent numbers appear on MAC DJ9 QUICK-JAW pliers.
"Utility pliers for single-handed manual manipulation which will automatically adjust to positions of positive gripping and holding of any size workpiece within the size range defined by the maximum opening between the jaws of the pliers." |
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