US Patent: 2,750,628
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| Heating Unit for Plastic Molding Machines
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Patentee:
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| William S. Renier (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 29, 1951 |
| Granted: |
Jun. 19, 1956 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Claim:
The ,present invention relates to heating units of the type used in certain plastic molding machines to heat plastic materials to proper molding temperatures. Such units are designed to effect an even heating of the material as it is used and are formed to define a plurality of relatively small heated passageways through which the material is passed just prior to its injection into the molds. |
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