Manufacturers Index - Hilger Co.
Hilger Co.
St. Cloud, MN, U.S.A.
Manufacturer Class:
Wood Working Machinery
This page contains information on patents issued to this manufacturer.
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If you find a patent number or patent date by this manufacturer that is not on this
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Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
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USPTO's for finding information on machinery patents.
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2,220,370
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Nov. 05, 1940
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Drum for smoothing surfaces
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Joseph E. Swalinkavich Jr. |
St. Cloud, MN |
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Drum for smoothing surfaces
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Ray E. McFadden |
St. Cloud, MN |
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Drum for smoothing surfaces
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William P. Hilger |
St. Cloud, MN |
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CA-402,418
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Jan. 20, 1942
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Drum for smoothing surfaces
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Joseph E. Swalinkavich Jr. |
St. Cloud, MN |
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Drum for smoothing surfaces
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Ray E. McFadden |
St. Cloud, MN |
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D154,851
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Aug. 16, 1949
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Design for a floor sander
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William P. Hilger |
St. Cloud, MN |
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2,483,904
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Oct. 04, 1949
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Floor sanding edger
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William P. Hilger |
St. Cloud, MN |
Improvements to the mechanism of the sander in patent 2,565,658, to address the tendency of the bolt holding the sandpaper to tighten in use, making it difficult to remove and sometimes tearing the sandpaper. |
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2,486,947
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Nov. 01, 1949
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Surface finishing device
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William P. Hilger |
St. Cloud, MN |
Improvements to patent 2,483,904 to improve heat dissipation, by providing a felt pad between the rubber pad and the sandpaper. The felt permits some air circulation which helps reduce the temperature of the paper and also avoids the heat from friction between rubber and paper. |
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2,565,658
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Aug. 28, 1951
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Floor sanding edger
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William P. Hilger |
St. Cloud, MN |
The Hilger Company went bankrupt at about the time this patent was issued and its product assets were acquired by the Clarke Sanding Machine Co. |
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