Michael Caccia2107 23Rd St, Rockford, IL 61108

Michael Caccia Phones & Addresses

2107 23Rd St, Rockford, IL 61108 (815) 226-9244 (815) 708-6058

South Elgin, IL

Elk Grove Village, IL

Schaumburg, IL

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Us Patents

Process Of Forming A Twisted, Spirally Grooved Member And The Member Formed Thereby

US Patent:
6287210, Sep 11, 2001
Filed:
Apr 7, 2000
Appl. No.:
9/544905
Inventors:
Michael Janusz - Elgin IL
Michael A. Caccia - Rockford IL
Assignee:
Textron Inc. - Providence RI
International Classification:
B21H 302
US Classification:
470 12
Abstract:
A novel process of forming a member, process of forming an extruded and axially twisted member, such as a drill, a fastener, a self-drilling/tapping fastener, and the member formed by the process is disclosed. The process includes the steps of: providing a blank; extruding a predetermined shape along at least a section of the blank, thereby forming at least two first portions and at least two portions on the extruded section; forming a head on the end of the blank to define a head and a shank; and axially twisting at least a section of the first and second portions a predetermined amount. As a result of the twisting step, each first portion forms a spiral along the length of the twisted section and each second portion forms a spiral along the length of the twisted section. The first portions alternate with the second portions and each second portion defines a spiral groove for transporting material along the length of the shank. The resulting member can be threaded along all or a portion of the shank.

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