发明申请
US20090184276A1 APPARATUS TO BIAS VALVE CLOSURE MEMBERS 有权
偏置阀闭合件的设备

APPARATUS TO BIAS VALVE CLOSURE MEMBERS
摘要:
Apparatus to bias valve closure members are described. An example biasing apparatus includes a first spring seat that has a first seating surface and a first protruding member extending a predetermined distance from the first seating surface and a second spring seat that has a second seating surface and a second protruding member extending a predetermined distance from the second seating surface. The first and second protruding members engage to slidably couple the first and the second spring seats.
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