Connection system for interconnecting a heat exchanger and a pip

Details Connection system for interconnecting a heat exchanger and a pip Connection system for interconnecting a heat exchanger and a pip

1989-02-02

1989-12-19

Callaghan, Thomas F.

Pipe joints or couplings

With means blocking release of holding means

Key or pin

285174, 285319, 285330, 285921, F16L 3700

Patent

active

048878499

ABSTRACT:
A connection system for interconnecting a heat exchanger and a pipe union, in which the pipe union (7) that opens out into a connection tube (4) of the heat exchanger water box (3) is permanently fixed to a flexible pipe (31) and is releasably connected to the tube (4). The leading end of the pipe union (7) has a neck (6) which is divided into a plurality of axial fingers (11) which are resilient in a radial direction and which carry snap-fastening catches (8). The catches (8) are circumferentially spaced apart and they alternate with cylindrical portions of the pipe union. The inside surface of the tube (4) has two sets of axially extending grooves (12, 13). The first set of grooves (12) are catch-receiving grooves for engaging the catches (8) when the union (7) is thrust axially into the tube (4). The second set of grooves (13) are catch-releasing grooves, and the union may be released from the tube by rotating it to bring the catches into alignment with the catch-releasing grooves and then withdrawing it axially. The invention is appliable to providing fast-action releasable connectors for use in the auotmobile industry.

REFERENCES:
patent: 2250199 (1941-07-01), Kelly
patent: 2869099 (1959-01-01), Robinson
patent: 3189372 (1965-06-01), Johnson
patent: 3588149 (1971-06-01), Demler, Sr.
patent: 3950014 (1976-04-01), Doubleday
patent: 4758023 (1988-07-01), Vermillion
patent: 4773474 (1988-09-01), Stay

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