US Patent: 5,271,300
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| Composite Hand Tool
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Patentees:
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| Gregory A. Zurbuchen (exact or similar names) - Kenosha, WI |
| Paul M. Machmeier (exact or similar names) - Racine, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 14, 1992 |
| Granted: |
Dec. 21, 1993 |
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Stan Schulz
Snap-On Tools Company History
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Description: |
| Emrich & Dithmar - patent attorneys
This patent continued with patent #5,448,932.
Abstract
A totally non-metallic wrench formed entirely of fiber-reinforced plastic material includes a core of random discontinuous glass-fiber-reinforced plastic material and a band of unidirectional continuous glass-fiber-reinforced plastic material extending around the periphery of the core which are subjected to compression molding to form a composite wrench structure.
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