US Patent: 4,512,221
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| Electric Powered Adjustable Wrench
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Patentee:
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| John A. Picone (exact or similar names) - Island Park, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 25, 1983 |
| Granted: |
Apr. 23, 1985 |
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Patent Pictures:
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Patent 4,512,221 - edited drawing |
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Stan Schulz
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Description: |
| Abstract
An adjustable jaw end wrench, in which the adjustable jaw is operated by a worm gear, the worm gear is meshed with the rack of the movable jaw and the worm gear is driven by an electric motor. Linear motion propelling the jaw open and/or closed is produced by the electric motor. Batteries in the handle provide the power for the electric movement and a DPDT (Double Pole Double Throw) switch controls the function of the wrench.
The frame in this design is pieces held together by screws.
A known example marketed as ZipWrench is marked with this patent and 6,477,921. Made in China and apparently marketed in the U.S. by Picone Products, Inc.
Wells & Wells - patent attorneys |
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