Method for manufacturing wrench handle with pressed...

Details Method for manufacturing wrench handle with pressed... Method for manufacturing wrench handle with pressed...

2008-01-29

2008-01-29

Hail, III, Joseph J. (Department: 3723)

Metal tools and implements, making

Machines

Wrench

C081S124400, C081S900000

Reexamination Certificate

active

07322261

ABSTRACT:
A method for manufacturing a wrench handle includes preheating a work piece made of metal, with a layer of carbon scale being generated on the work piece during preheating. The preheated work piece is forged/pressed to form a wrench handle, with the carbon scale on the work piece being forged into upper and lower faces of the wrench handle. An indentation is formed on each of the upper and lower faces of the wrench handle. The carbon scale is then removed, leaving pits in the upper and lower faces of the wrench handle, with the pits concealed by the indentation sections.

REFERENCES:
patent: 5448932 (1995-09-01), Zurbuchen et al.
patent: 6855217 (2005-02-01), Suzuki

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