|
2010
|
Invention
|
Hemi-wedge verifiable shutoff valve. An improved hemi-wedge type valve is disclosed that has upst... |
|
2007
|
Invention
|
Rotatable wedge cartridge valve mechanism and method for assembly and disassembly. A rotatable we... |
|
|
Invention
|
Rotatable wedge valve mechanism and method for manufacture. A rotatable wedge valve mechanism has... |
|
|
Invention
|
Self-adjusting seat for rotary valve.
A valve seat assembly is provided for rotatable valves. Th... |
|
2006
|
Invention
|
High-pressure, hemi-wedge cartridge valve. A valve having a cartridge that fits within the valve ... |
