US Patent: 1,330,542
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| Valve Spring Lifter
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Patentee:
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| Harry W. Kulp (exact or similar names) - Lancaster, PA |
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Patent Dates:
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| Applied: |
Apr. 21, 1919 |
| Granted: |
Feb. 10, 1920 |
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Patent Pictures:
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Harry W. Kulp patent Febr. 10, 1920 |
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Stan Schulz
K-D Valve Lifter ca. 1920 (FLICKR)
K-D Mfg. Co. v Waterloo Valve Spring Compressor Co. (LEAGLE)
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Description: |
| The construction keeps the jaws parallel, and allows for interchange of parts.
Early distribution by GASCO (General Auto Supply Co.); manufacture by K-D Mfg. Co. Bridgeport Hardware Mfg. licensed the patent for use in conjunction with W. F. Hobbs' patent no. 1,614,300.
Patent no. 1,461,275 adds an automatic ratchet lock to the tool, to hold a spring in compressed position.
This patent and 1,879,330 were found to have been infringed by the Waterloo Valve Spring Compressor Co. in K-D Mfg. Co. v. Waterloo Valve Spring Compressor Co. [13 F.Supp. 811 (1936)]. |
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