US 5,845,944 AGranted

Coupling for pressurized medium

AssigneeRaufoss Technology A/S

InventorsJens Olav Enger, Kjell Villanger

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Abstract

A coupling for pressurized medium comprising a stud member and a socket member, the stud member and the socket member are mutually locked together in a completely coupled position by a locking ring which engages with circumferential locking ring grooves in the stud and socket member, two sealing rings sealingly engage the stud member and socket member and the stud member and socket member have second grooves into which a safety ring is fitted, the second groove in the socket member has a larger axial extent than the safety ring so that when the locking ring is engaged in the locking ring grooves, the safety ring is not effective to retain the stud and socket members together but is only effective prior to the locking ring engaging the locking ring grooves when the stud and socket members are incompletely coupled together.

Claims7

Dependent claims

Coupling for pressurized medium, comprising:

a stud member;
a socket member in which the stud member is inserted axially;
a locking ring which is brought into engagement with a first annular locking ring groove in an outer surface of the stud member and a first annular locking ring groove in an inner surface of the socket member for locking the stud member and the socket member;
wherein the stud member has two circumferential contact surfaces containing two sealing rings, the socket member has two circumferential contact surfaces for the two sealing rings, the socket member has a second locking ring groove, the stud member has a second locking ring groove containing a safety ring which is brought into engagement with the second locking ring groove in the socket member, said second locking ring groove in the socket member having a larger axial extension than the safety ring and being axially situated such that when the first annular locking ring is in engagement with the corresponding first annular locking ring grooves in the stud member and the socket member, the safety ring is situated an axial distance from the axially outermost delimitation of the second locking ring groove in the socket member.

1 more element

Dependencies are inferred from the claim text.