Installer for twist lock air fitting

Details Installer for twist lock air fitting Installer for twist lock air fitting

1984-08-17

1986-04-29

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

269 43, B25B 722

Patent

active

045847541

ABSTRACT:
The invention is an apparatus for installing and disengaging the well-known twist lock air fitting (also known as a Chicago fitting). The invention in its narrower sense comprises two vise grips each securely attached to one of the two interlocking members of the twist lock air fitting with the two vise grips connected by an interconnecting bar attached to one vise grip with a ball joint interconnection. The twist lock air fitting is installed by pressing together and rotating the two vise grips until the claws pass the locking tabs of the fitting. Disengaging of the fitting is accomplished by a reversal of the above procedure.

REFERENCES:
patent: 2187878 (1940-01-01), Hill et al.
patent: 3252192 (1966-05-01), Smith
patent: 3400872 (1968-09-01), Rogers
patent: 3711920 (1973-01-01), Simmons
patent: 3716079 (1973-02-01), Marshall
patent: 4257135 (1981-03-01), Moebius

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