Stanley Yokell
Engineers at Aurora Ave, Boulder, CO

License number
Colorado 17123
Issued Date
Mar 21, 1980
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
970 Aurora Ave APT F201, Boulder, CO 80302
LicenseFiles verified this license of Dec 9, 2016 at the Colorado - Department of Regulatory Agencies.

Professional information

Stanley Yokell Photo 1

Apparatus For Venting Tubes

US Patent:
5597276, Jan 28, 1997
Filed:
Jul 29, 1994
Appl. No.:
8/282921
Inventors:
Stanley Yokell - Boulder CO
International Classification:
B23C 334
US Classification:
409132
Abstract:
An apparatus is provided to allow a conventional tube grooving tool to be used to create a vent hole in a tube behind the tube sheet of a boiler or other tubular heat exchanger without cutting a hole or grove in the entire circumference of the tube. The apparatus includes an eccentric or a canted guide that is positioned within the end of the tube to guide the tool holder having a grove cutting tool mounted on it. The guide offsets the tool holder and the cutting tool from the centerline of the tube so that the cutting tool only cuts into a portion of the inside surface of the tube.

Engineers licenses in Colorado