Howard J. Bates Jr.
Engineering at Bycroft Cir, Yorba Linda, CA
License number
Louisiana PE.0011014
Issued Date
Jul 11, 1967
Expiration Date
Dec 31, 1983
Category
Civil Engineer
Address
Address
4032 Bycroft Cir, Yorba Linda, CA 92886
Professional information
Speed Control Valve
US Patent:
4724866, Feb 16, 1988
Filed:
Jul 31, 1986
Appl. No.:
6/891748
Inventors:
Howard J. Bates - Yorba Linda CA
Willard D. Childs - Encinitas CA
Eugene S. Matsuda - Laguna Hills CA
Douglas W. J. Nayler - Mission Viejo CA
Willard D. Childs - Encinitas CA
Eugene S. Matsuda - Laguna Hills CA
Douglas W. J. Nayler - Mission Viejo CA
Assignee:
NL Industries, Inc. - New York NY
International Classification:
F16K 1506
US Classification:
137498
Abstract:
A speed control valve is formed with a pair of cooperating inversely operating dashpots to control movement of a valve element in either direction so as to prevent sudden actuation upon change in fluid velocity or oscillation due to fluid flow changes. Bleeding of fluid into and out of the dashpots controls the speed of movement of the valve element.