Method and tool product of differential heat treatment process

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United States of America Patent

PATENT NO 9943934
SERIAL NO

12247932

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Importance

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Abstract

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A tool having a relatively ductile working end for engaging workpieces and a relatively hard non-working portion for driving the tool is disclosed, and a process for making same. The tool is formed with the material in a first state, such as by cold-working, and then only the non-working portion is heat treated to a second state. The working end is thus maintained in the ductile state while the non-working portion is hardened, thus imparting different materials performance characteristics to working end and non-working portion.

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Patent Owner(s)

Patent OwnerAddress
SNAP-ON INCORPORATED2801 80TH STREET P O BOX 1410 KENOSHA WI 53141-1410

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eggert, Daniel M Kenosha, US 74 1110

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