Device for a coupling unit having connectable and disconnectable

Details Device for a coupling unit having connectable and disconnectable Device for a coupling unit having connectable and disconnectable

1978-07-06

1981-07-14

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

Insulated

285321, 285354, 285388, F16L 1112

Patent

active

042782767

ABSTRACT:
In a coupling unit having first and second parts connectable and disconnectable with each other, the second part is provided with an outer ring-shaped groove which extends through the wall of the second part along the circumference. The first part has a corresponding recess or groove. The parts are connected by at least one locking ring. The locking ring is located in the groove of the second part and has at least one indentation which extends through the groove and interacts with the recess in the first part.

REFERENCES:
patent: 115917 (1871-06-01), Wharton
patent: 298150 (1884-05-01), Zoller
patent: 3305249 (1967-02-01), Zahuranec
patent: 3314646 (1967-04-01), Ferguson et al.
patent: 3428340 (1969-02-01), Pelton
patent: 3534988 (1970-10-01), Lindsey
patent: 3540760 (1970-11-01), Miller et al.
patent: 3584902 (1971-06-01), Vyse
patent: 3922011 (1975-11-01), Walters
patent: 3990730 (1976-11-01), Ekman
patent: 3999781 (1976-12-01), Todd

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