Method and fixture for holding threaded valve assemblies for tes

Details Method and fixture for holding threaded valve assemblies for tes Method and fixture for holding threaded valve assemblies for tes

1993-12-01

1996-11-26

Chilcot, Richard

Measuring and testing

Probe or probe mounting

738659, G01D 2100

Patent

active

055787720

ABSTRACT:
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.

REFERENCES:
patent: 4570903 (1986-02-01), Crass
patent: 4633713 (1987-01-01), Mesnard et al.
patent: 4660416 (1987-04-01), Charbonneau et al.
patent: 4690003 (1987-09-01), McNennamy et al.
patent: 4876905 (1989-10-01), Callsen et al.

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