US Patent: 6,247,386
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| Dual action indexable wrench
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Patentee:
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| Stephen Gummow (exact or similar names) - Rockton, IL |
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Patent Dates:
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| Applied: |
Oct. 06, 1999 |
| Granted: |
Jun. 19, 2001 |
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Patent Pictures:
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Patent 6,247,386 - edited drawing. |
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Stan Schulz
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Description: |
| Abstract: "An improved dual action indexable wrench having a moment arm connected to a wrench body which can be operated in a first configuration to apply force directly and in a second configuration to apply force by reciprocal motion, which can be readily switched between the two configurations by engaging and disengaging a shoulder on the wrench body having a v-shaped notch and a corresponding leading edge on the handle having square corners dimensioned to be received within the notch on the shoulder."
A correspondent notes this design followed an earlier version and subsequent related patents, some of which were the basis for patent infringement lawsuits (viz. 4,406,186, 5,419,221 and 5,775,184). This patent was used in the STANLEY No. 89-808 ratchet.
Prior patents 1,417,338, 1,564,442, 1,764,379, 1,822,428, 4,334,445, 4,406,186, 4,688,454, 4,805,494, 5,419,221, 5,694,818, 5,775,184 and 5,941,141 are cited as references. |
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