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US Patent: 1,815,980
Valve Spring Lifter
Patentees:
Harry W. Kulp - Lancaster, PA
Martin C. Dellinger - Lancaster, PA

USPTO Classifications:
29/221

Tool Categories:
specialty tools : valve spring tools

Assignees:
None

Manufacturer:
K-D Mfg. Co. - Lancaster, PA

Witnesses:
none listed

Patent Dates:
Applied: Dec. 12, 1928
Granted: Jul. 28, 1931

Patent Pictures: [ 1 | 2 ]
Harry W. Kulp and Martin C. Dellinger patent July 28, 1931
USPTO pdf tiff
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Description:
Improvement to engine valve lifters of the type based on patent no. 1,359,814 to fit the design of Model A Ford engines. The design kept the jaws parallel through their range of motion.

Produced as the K-D No. 307 valve spring compressor.

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