US Patent: 4,375,174
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| Adjustable End Wrench Releasable Locking Feature
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Patentee:
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| Stephen E. Shanley, Jr. (exact or similar names) - Grosse Ile, MI |
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Patent Dates:
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| Applied: |
Aug. 24, 1981 |
| Granted: |
Mar. 01, 1983 |
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Patent Pictures:
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Patent 4,375,174 - edited image |
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Stan Schulz
TRU-GRIP Wrench (1985 write-up) - (FLICKR)
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Description: |
| The patent is for a lever handle and linkage which tightens and can lock the grip of of the movable jaw on a "Crescent" type adjustable end wrench. Distributed as the "Tru-Grip Wrench." A 1985 ad lists three sizes: 8, 10, and 12 inch.
The patents cited are: 599,379, 1,403,334, 1,490,903, 1,506,362, 1,771,692, 2,539,852, 3,190,154, and 3,333,492. |
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