| US Patent: D151,860 
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| Momentum Wrench | 
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| Patentee: |  |
 | Raymond L. Stoyer (exact or similar names) - Lebanon, PA |  
 
| USPTO Classifications: |  | D8/68 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Aug. 07, 1947 |  
| Granted: | Nov. 23, 1948 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Raymond L. Stoyer design patent November 23, 1948 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | It appears the flywheel can attach to the rotating socket with a spring-loaded detent.
The specifications cite patent no. 226,149 as relevant prior art. In that patent, an axle nut wrench has a flywheel type handle. |  |