Coupling for a vacuum fluid line

Details Coupling for a vacuum fluid line Coupling for a vacuum fluid line

1993-04-30

1994-06-21

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Handle or handwheel for rotary engagement

285314, 285331, F16L 3500

Patent

active

053223292

ABSTRACT:
The coupling for a vacuum fluid line has a tubular first coupling part (10) that can be axially inserted with radial play into an annular groove (14) in the frontal face of a bushing-shaped second coupling part (12) until it reaches a tight contact position and can be locked in this position. In order to facilitate and to be able to better control the release of the coupling, it is provided that on one of the coupling parts (10,12) a separation ring (24) is positioned in an axially fixed but rotatable manner. It has a cam-shaped lateral surface (34) that supports itself on a counter-surface (36) attached to another coupling part (10) and pushes apart the two coupling parts (10,12) by wedge action when the separation ring (24) is rotated.

REFERENCES:
patent: 1371882 (1921-03-01), Ferguson et al.
patent: 1966718 (1934-07-01), Hanson
patent: 3351359 (1967-11-01), Ferraris
patent: 3674287 (1972-07-01), Selley
patent: 5080405 (1992-01-01), Sasa et al.

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