US Patent: 2,700,911
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| Pipe Wrench With Spring-Biased Hook Jaw
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Patentee:
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| Karol T. Dyczynski (exact or similar names) - Erie, PA |
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Patent Dates:
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| Applied: |
Jun. 30, 1953 |
| Granted: |
Feb. 01, 1955 |
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Patent Pictures:
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Karol T. Dyczynski patent February 1, 1955 |
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Stan Schulz
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Description: |
| The spring biases the hook jaw to the open position. The biasing spring is retained in the frame when the adjustable jaw is removed. A couple of alternate means of holding the spring in the frame are presented. The exterior of the wrench resembles the RIDGID (Pat. no. 1,727,623 -- issued Sept. 10, 1929).
The specifications reference patent nos. 509,408 and 2,650,512.
The ERIE PIPEMASTER pipe wrenches have this biasing spring feature. |
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