초록 ▼

A test fixture and method involves the use of a rotary element mounted within a fixture, the element having an internally threaded bore engaging a threaded body portion of the valve assembly and adapted to be selectively rotated by a drive motor to be drawn into a bore in the fixture accepting a ste

A test fixture and method involves the use of a rotary element mounted within a fixture, the element having an internally threaded bore engaging a threaded body portion of the valve assembly and adapted to be selectively rotated by a drive motor to be drawn into a bore in the fixture accepting a stem portion of the valve assembly. A wrenching hexagonal contour on the housing receives a hex contour on a body portion of the valve assembly to hold the valve assembly against rotation upon insertion into the fixture bore. A sealing ring is compressed as the valve stem is fully drawn into the fixture bore, damage to the seal being avoided by not rotating the valve assembly during installation or removal.

대표청구항 ▼

A test fixture for testing a valve assembly having a stem section including threaded body portion and sealing ring encircling said threaded body portion, said test fixture comprising: housing means having an open bore configured to receive said valve stem section readily insertable into said bore, s

A test fixture for testing a valve assembly having a stem section including threaded body portion and sealing ring encircling said threaded body portion, said test fixture comprising: housing means having an open bore configured to receive said valve stem section readily insertable into said bore, said valve assembly being held against rotation when said valve stem is inserted in said bore; a rotary element rotatably mounted within said housing means having an internally threaded bore aligned with said valve housing bore, the thread of said internally threaded bore adapted to threadedly mate with said threaded body portion of said valve assembly to be tested; selectively actuatable drive means for causing said rotary element to be rotated in either rotative direction, said valve assembly moved axially in said bore by rotation of said rotary element; a seal engaging surface concentric to said housing bore and located to be engaged with said sealing ring as said valve assembly is drawn into said housing bore by rotation of said rotary element by said drive means in a direction causing advance of said threaded body portion into said threaded internal bore, whereby said valve assembly can be drawn axially into said test fixture and said sealing ring sealed against said seal engaging surface without being rotated.