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Description: |
| Lost motion and friction are major challenges in the design and execution of adjustable wrenches with a slide and spiral shaft geared to the movable jaw.
This patent includes bearings, close manufacturing tolerances, and "TEFLON" on the contact between the slide and spiral shaft.
The specifications cite a number of patents as relevant prior art: 1,354,782, 1,723,574, 1,739,182, 1,915,396, 2,447,094, 2,603,116, 2,753,748, 2,795,987, and 2,837,952.
This patent is cited in design patent D524,126 (July 4, 2006). |
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