Coupling with teflon seat

Details Coupling with teflon seat Coupling with teflon seat

1991-03-13

1992-07-21

Arola, Dave W.

Pipe joints or couplings

Packed

Screw thimble

285910, F16L 1706

Patent

active

051316951

ABSTRACT:
A reusable union coupling is provided, particularly for refrigeration service, comprising two fittings, a body and an adapter, which are attached to the two conduits or other components to be joined. A variable washer seal cavity is created when the body and adapter are mated, within which a teflon washer is disposed. Means are provided for moveably connecting the body to the adapter and selectively compressing the washer within the cavity, in particular a rotatable collar is provided which engages the adapter and threads onto the body. Means are also provided to prevent extrusions, displacement, and over-compression of the washer.

REFERENCES:
patent: 2537249 (1951-01-01), Walton
patent: 2880019 (1959-03-01), Wurtz et al.
patent: 3092404 (1963-06-01), MacWilliam
patent: 3124502 (1964-03-01), Radke
patent: 4622732 (1986-11-01), Broderick

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