US Patent: 4,991,470
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| Socket Wrench With Improved Handle
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Patentee:
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| Robert P. Singleton (exact or similar names) - Birmingham, AL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 13, 1989 |
| Granted: |
Feb. 12, 1991 |
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Stan Schulz
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Description: |
| Abstract: "A speed socket wrench which substantially reduces the work required to remove nuts or bolts is disclosed. The wrench includes a bevel gear and mating bevel pinion mounted respectively on a gear shaft and pinion shaft. A drive shaft is provided on the outer end of the pinion shaft. A reversing ratchet mechanism is employed to lock the drive shaft. The specific construction and arrangement of components provides a socket wrench has been found to substantially reduce the work required to remove nuts or bolts, as compared with conventional wrenches. The present invention provides an improved T-handle for use with a tool having a shaft which rotates about its longitudinal axis. The T-handle is constructed with a generally L-shaped end member, having the shorter leg of the end member extending outwardly at an angle such as about 45 degrees and with the end member being pivotable at its center about the shaft so as to form an angle with the shaft which is complementary to the angle formed by the shorter leg of the end member with the main portion of the end member. In this manner, there is obtained a lever arm that is parallel to the shaft in the operating mode."
Fourth of four patents pertaining to the SIDEWINDER SPEED WRENCH. The other three are; 4,620,459, 4,680,994 and 4,907,476. The wrench as produced did not include this feature, which would have added a "speed crank" to the "T" handle.
Patents cited as references: 2,220,354, 2,572,444, 4,262,561 and one British patent. |
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