US Patent: 1,222,229
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| Valve Releasing Device
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Patentee:
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| Robert L. Mapson (exact or similar names) - San Diego, CA |
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Patent Dates:
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| Applied: |
Mar. 20, 1916 |
| Granted: |
Apr. 10, 1917 |
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Patent Pictures:
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Robert L. Mapson patent April 10, 1917 |
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Stan Schulz
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Description: |
| The adjustment is accomplished by a roughly parallelogram frame structure, and held by a spring-tensioned latch.
Advertising for the MAPSON "Perfection" Valve Lifter claimed, "the action is all above the cylinder head."
A known example gives the company's location as Los Angeles. |
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