US Patent: 3,207,934
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| Electric motor with improved cooling means
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Patentees:
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| Joseph W. Purman (exact or similar names) - Milwaukee, WI |
| Bruce T. Hein (exact or similar names) - Milwaukee, WI |
| Russell I. Robinson (exact or similar names) - Thiensville, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 18, 1962 |
| Granted: |
Sep. 21, 1965 |
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Jeff Joslin
Vintage Machinery entry for Louis Allis Co.
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Description: |
| These design improvements are intended for totally enclosed fan cooled (TEFC) motors in the 600 HP range. |
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