Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1991-06-20
1992-05-12
Trettel, Michael F.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285315, 285319, 285375, 285903, 285921, F16J 1500, F16L 3900
Patent
active
051120860
ABSTRACT:
A coupling device for releasably connecting a corrugated member to the coupling device, has a radially outer housing, a radially inner operating sleeve and at least one locking claw forming part of the sleeve that is axially movable within the outer housing. The locking claw is accessible through an opening in the outer housing wall and its claw engages a corrugation ridge when a corrugated member is inserted into the operating sleeve. In the locked position a flange of the operating sleeve is axially spaced from the housing, whereby the claw rests against an edge of the opening and cannot be tilted radially outwardly about its hinge. In an unlockable position the flange of the sleeve contacts the housing and the claw can clear the opening edge to permit withdrawal of a corrugated member.
REFERENCES:
patent: 4247136 (1981-01-01), Fouss et al.
patent: 4542922 (1985-09-01), Grossauer
patent: 4836580 (1989-06-01), Farrell
patent: 4923227 (1990-05-01), Petty et al.
patent: 4989905 (1991-02-01), Rajecki
patent: 5042844 (1991-08-01), Iida et al.
Bamberg Alfred
Gruber Ernst
Fasse W. G.
FLEXA GmbH & Co. Produktion und Vertrieb KG
Trettel Michael F.
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