US Patent: 4,016,782
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| Adjustable Ratchet Wrench
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Patentee:
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| Henry L. Guimarin (exact or similar names) - Grapevine, TX |
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Patent Dates:
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| Applied: |
Sep. 12, 1975 |
| Granted: |
Apr. 12, 1977 |
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Patent Pictures:
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Henry L. Guimarin Patent April 12, 1977 |
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Stan Schulz
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Description: |
| This patent includes paired jaws on a lead screw mounted in a rectangular opening in the ratchet head. A thumb wheel in the center of the lead screw operates the jaw adjustment. The jaw faces are "V" shape to facilitate use or square or hexagonal nuts. The ratchet is reversible.
Used along with D238,140 and 4,112,792 in the GUIMARIN "GEM" adjustable ratchet wrench.
The references and specifications note prior patents 275,079, 295,797, 600,158, and 1,135,929. |
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