THOMAS RICHARD BODNAR
Engineers in Murrysville, PA
License number
Pennsylvania PE019075E
Category
Engineers
Type
Professional Engineer
Address
Address
Murrysville, PA 15668
Professional information
Flanged Valve Connectors
US Patent:
4711426, Dec 8, 1987
Filed:
Oct 22, 1986
Appl. No.:
6/922007
Inventors:
Thomas R. Bodnar - Murrysville PA
International Classification:
F16K 5100
US Classification:
251151
Abstract:
A combination valve and flanged connector for connecting a metallic or non-metallic pipe directly to the valve body is disclosed. The flanged valve connector includes a radial flange secured on a longitudinal end of the valve body. Secured to the radial flange is a tubular member for receiving the end section of a pipe to be connected with the valve body. The tubular member has a generally frusto conical end sized to snugly receive a sealing gasket in sealed relationship between the tubular member and the valve body. The tubular member also has a length sufficient to be engaged by a retainer for holding the sealed gasket in place and to also support a follower ring engaging the gasket retainer, the follower ring being provided with a deep, longitudinally extending strengthening flange.
Gate Valves
US Patent:
4765591, Aug 23, 1988
Filed:
Jun 1, 1987
Appl. No.:
7/056154
Inventors:
Thomas R. Bodnar - Murrysville PA
International Classification:
F16K 318
US Classification:
251330
Abstract:
A gate valve is provided having a valve body with a fluid passage therethrough and a riser passage at right angles to the fluid passage. A valve gate is included for opening and closing the fluid passage. A valve stem is operatively connected with the valve gate for transmitting movement force to the valve gate. The valve stem includes a first wrench for receiving a drive member and an identically shaped second wrench head. The wrench heads are separated by a first zone of weakness formed to fail completely when a first predetermined torque is applied to the stem. Upon complete failure of the first zone of weakness the second wrench head would be exposed for engagement by a drive member to turn the valve stem. A second zone of weakness is formed on the valve stem below the first zone of weakness and is formed to fail when a second predetermined torque greater than the first predetermined torque is applied to the stem. The valve gate has a one piece body with a seal member removably arranged on the body to engage the valve body in the fluid passage.