Tube coupling with gasket retainer

Details Tube coupling with gasket retainer Tube coupling with gasket retainer

1990-08-01

1992-09-08

Reese, Randolph A.

Pipe joints or couplings

Particular interface

Interlocked or overlapped

285353, 285379, 285386, 285910, 277236, F16L 1900

Patent

active

051452197

ABSTRACT:
A tube coupling assembly particularly suited for ultra-high vacuum applications comprises a pair of coupling components having through passages and abutting end faces. Each end face includes an annular continuous rib or bead. A threaded coupling nut acts to drive the ribs into sealing engagement with the opposite sides of flat annular sealing washer gasket positioned between the end faces. To prevent relative rotation between the end faces and the sealing gasket, as well as to prevent torque transmission to related system components, protrusions are provided which engage the coupling components to produce a driving connection between the gasket and/or the two coupling components prior to engagement of the ribs with the gasket. Also, a resinous plastic bearing washer is used between the coupling nut and the associated coupling component to reduce torque transmission during make-up.

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patent: 4838583 (1989-06-01), Babuder et al.
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patent: 4867462 (1989-09-01), Udagawa
patent: 4872712 (1989-10-01), Maier
patent: 4887852 (1989-12-01), Hancock

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