Joseph Paul Kubitschek
Engineers at Darley Ave, Boulder, CO
License number
Colorado 32943
Issued Date
Jul 15, 1998
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
3255 Darley Ave, Boulder, CO 80305
Professional information
Modified Isbester (Mi) Flow Control Gate Valve
US Patent:
2002012, Sep 12, 2002
Filed:
Mar 9, 2001
Appl. No.:
09/801762
Inventors:
Joseph Kubitschek - Boulder CO, US
K. Frizell - Arvada CO, US
Dane Cheek - Denver CO, US
K. Frizell - Arvada CO, US
Dane Cheek - Denver CO, US
International Classification:
F16K003/00
US Classification:
251/326000, 251/329000
Abstract:
A gate valve unit is provided for controlling the flow of a liquid through a conduit. The gate valve unit includes a valve body including a conduit connector member or flange. A valve face block affixed to the valve body includes first and second backwardly sloped surfaces. A pair of movable gate leaves are disposed on the first and second surfaces of the face block and are movable away from and toward a central passage through the unit for controlling fluid flow through the unit. A face seal provides a seal between the surfaces of the face block and the gate leaves. A visor seal is attached to the valve body which is movable between an operative position in which the visor seal provides sealing between the gate leaves, and an inoperable position away from the gate leaves so as to not interfere with the operation of the gate leaves.