US Patent: 2,320,044
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Wrench
Spark Plug Wrench
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Patentee:
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| Henry H. Merriman (exact or similar names) - Jackson, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 03, 1940 |
| Granted: |
May 25, 1943 |
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Patent Pictures:
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Henry H. Merriman patent May 25, 1943 |
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Stan Schulz
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Description: |
| A deep socket with four internal coil springs arranged to center the spark plug, protect the porcelain from damage, and hold the spark plug firmly for cleaning or handling while hot.
The springs are held by a split ring which fits into a groove in the body of the socket.
Pat. nos. 2,294,193 and 2,304,271 are parallel efforts. |
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