Donald Gitthens
Barber at Owens St, Arvada, CO
License number
Colorado 1439
Issued Date
May 20, 1968
Renew Date
Apr 1, 2016
Expiration Date
Mar 31, 2018
Type
Barber
Address
Address
5853 Owens St, Arvada, CO 80004
Professional information
Hydraulic Safety Valve Base
US Patent:
3965919, Jun 29, 1976
Filed:
Sep 26, 1974
Appl. No.:
5/509647
Inventors:
Robert E. McGarvey - Arvada CO
Donald L. Gitthens - Arvada CO
Donald L. Gitthens - Arvada CO
International Classification:
F16K 1107
US Classification:
137107
Abstract:
The present invention relates to a safety valve for use with a hydraulic system as is utilized in raising loads such as with a front-end loader, a fork truck, snorkel truck, and the like. The safety valve provides a spring actuated plunger which acts to trap hydraulic fluid within a hydraulic cylinder to retain a load in its raised position in the event a hydraulic feed line or the like should break.