Positively-locking, quick-release coupling

Details Positively-locking, quick-release coupling Positively-locking, quick-release coupling

1993-04-28

1994-08-16

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Handle or handwheel for rotary engagement

285 85, 285312, F16L 3500

Patent

active

053380690

ABSTRACT:
A coupler has a locking mechanism which comprises a J-shaped blocking pin which is attached to a housing. A spring urges the blocking pin towards a locking arm so that a pin end traps the arm between the housing and the pin end to hold the arm in a locked position. The spring may be manually compressed to cause the pin end to move away from the arm so that the arm can swing outward to an unlocked position. The protruding pin end is bevelled and the locking arm has a bevelled portion which mates with the bevelled pin end. As the locking arm is swung to its locked position, the blocking pin end is pushed away from the arm allowing the arm to pass freely by the pin end. After the locking arm has passed over the pin end, the pin end is drawn toward the arm by the spring capturing the arm in the locked position.

REFERENCES:
patent: 767843 (1904-08-01), Smith
patent: 3124374 (1964-03-01), Krapp
patent: 3976313 (1976-08-01), Lauffenburger et al.
patent: 4222593 (1980-09-01), Lauffenburger et al.

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