US Patent: 3,069,903
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| Torque measuring wrenches of the torsion type
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Patentee:
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| Kenneth R. Larson (exact or similar names) - Des Plaines, IL |
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Patent Dates:
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| Applied: |
Jul. 26, 1957 |
| Granted: |
Dec. 25, 1962 |
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Stan Schulz
"Vintage Machinery" entry for Snap-On, Inc.
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Description: |
| Improvements to patents 2,312,104, 2,367,224, and 2,682,796. These patent torque wrench designs all use the amount of twist, rather than flex, of a beam to indicate the torque. This patent provides a design that can work accurately across a wide range of torques, from inch-ounces on up, by changing the "torsion resisting element". |
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