US Patent: 4,662,252
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| Auto-grip pliers
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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. 18, 1985 |
| Granted: |
May 05, 1987 |
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Patent Pictures:
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Patent 4,662,252 - edited drawing |
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Stan Schulz
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Description: |
| 2nd patent number appearing on CRAFTSMAN ROBO-GRIP(R) self-adjusting pliers.
"Self-adjusting utility pliers are disclosed in pending U.S. patent application Ser. No. 654,405 filed Sept. 26, 1984, now U.S. Pat. No. 4,651,598; issued Mar. 24, 1987. The tool therein disclosed is intended for the same use and purpose as the aforedescribed prior art pliers but has the clear advantage of single-handed adjustment. Further, the pliers are adapted to slideably close upon a work piece in response to manual closing action on the handles, and, in response to contact with the work piece, automatically lock against further sliding action and shift from the sliding to a pivoting mode whereby continued exertion of manual force on the handles causes increased gripping action on the work piece." |
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