U.S. patent number 3,731,674 [Application Number 05/168,586] was granted by the patent office on 1973-05-08 for shoe with nerve and muscle relaxant. Invention is credited to Don M. Parvin.
United States Patent | 3,731,674 |
Parvin | May 8, 1973 |
The heel of a shoe contains a battery and electrically powered motor means connected in circuit by a manually operated on-off switch. When the switch is closed, the means produces vibrations transmitted through the feet of the wearer to the rest of the body, promoting a relaxing action on nerves and muscles.
Inventors: | Parvin; Don M. (Defiance, OH) |
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Family ID: | 22612105 |
Appl. No.: | 05/168,586 |
Filed: | August 3, 1971 |
Current U.S. Class: | 601/30; 36/141; 601/70 |
Current CPC Class: | A43B 7/146 (20130101); A43B 3/34 (20220101); A61H 23/0263 (20130101) |
Current International Class: | A61H 23/02 (20060101); A61h 001/02 () |
Field of Search: | ;128/25B,34-36,582 |
2949108 | August 1960 | Vecchio |
1,266,292 | May 1961 | FR | |||
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