Fluid coupling

Details Fluid coupling Fluid coupling

Filed on

1988-06-27

Date issued

1989-05-09

Examiner

Reese, Randolph A.

Patent Class

Pipe joints or couplings

SubClass

Essential catch

Other Related Categories

285348, F16L 3700, F16L 1900, F16L 3318

Type

Patent

Status

active

Patent number

048282979

Description

ABSTRACT:
A coupling between an end of a fluid conducting tube and a socket in a housing at the end of a fluid conducting passage in the housing. An annular shoulder on the tube seats on an annular base of the socket in an installed position of the tube and a annulus is defined between the outside of the tube and a circular entry to the socket above the base. A tubular plastic retainer, slidably disposed on the tube behind the annular shoulder and outside the socket, has an outwardly flared front end section which is squeezed to the smaller diameter of the circular entry and pushed into the annulus between the entry and the tube. In a seated position of the retainer, the flared front end section radially overlaps the annular shoulder so that a shear section of the retainer is defined between the annular shoulder and the circular entry. The shear section resists withdrawal of the tube from the socket.

REFERENCES:
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patent: 4332402 (1982-01-01), Shellhause
patent: 4526411 (1985-07-01), Bartholomew
patent: 4637640 (1987-01-01), Fournier et al.
patent: 4697832 (1987-10-01), Dickirson
patent: 4753459 (1988-06-01), Potier

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