Dispensing pump having collar-to-body anti-rotation interlock

Details Dispensing pump having collar-to-body anti-rotation interlock Dispensing pump having collar-to-body anti-rotation interlock

1983-11-30

1986-05-20

Rolla, Joseph J.

Dispensing

With lock or fastening seal

Plural

222320, B67B 500

Patent

active

045895740

ABSTRACT:
Serrations on the upper end of the pump body are disposed for interlocking engagement with depending portions of the pump collar so that when the plunger is rotated in a counterclockwise direction to unlock the same from the collar in preparation for reciprocal operation, the collar is held securely by the body against rotation to assure unlocking. The serrations take the form of a plurality of equally circumferentially spaced ramps which are inclined in the direction of locking rotation of the plunger to thereby permit the collar to yieldably override the serrations when the locked plunger and collar are rotated as a unit in the locking direction relative to the body to orient a spout of the plunger in a desired location for factory packaging efficiency.

REFERENCES:
patent: 3179306 (1965-04-01), Corsette
patent: 3900123 (1975-08-01), Darlington
patent: 4162746 (1979-07-01), Anderson
patent: 4278187 (1981-07-01), Luedtke
patent: 4369899 (1983-01-01), Magers et al.
patent: 4433799 (1984-02-01), Corsette

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