James M Wilson
Electrician in Durango, CO
License number
Colorado 2074
Issued Date
Sep 21, 1979
Renew Date
Mar 1, 2009
Expiration Date
Sep 30, 2011
Type
Master Electrician
Address
Address
PO Box 2984, Durango, CO 81302
Personal information
See more information about James M Wilson at radaris.comName
Address
Phone
5163 Buffalo Rd, Erie, CO 80516
Aurora, CO
Professional information
See more information about James M Wilson at trustoria.com
Hand Punch
Hand Punch
US Patent:
4587737, May 13, 1986
Filed:
Aug 2, 1984
Appl. No.:
6/637067
Inventors:
James M. Wilson - Durango CO
International Classification:
B26F 132
US Classification:
30358
Abstract:
There is disclosed a hand punch comprising a C-shaped member having a punch and die mounted in the extremities thereof. A rotary head having a threaded member axially disposed therein is mounted for rotation in one extremity of the C and the punch or cutting head is mounted on that member so that, when the rotary head is rotated, the cutting head is advanced into the die. The cutting head has cutting edges adapted to bite into the material to be punched and to hold it against rotation. It is threaded onto the threaded member by a reverse thread so that, once it bites into the material to be punched, the threaded member is held against rotation, whereby rotation of the rotary head drives the punch into the die.