Plastic spring assembly for trigger sprayer

Details Plastic spring assembly for trigger sprayer Plastic spring assembly for trigger sprayer

1992-02-24

1993-07-20

Kashnikow, Andres

Dispensing

With discharge assistant

With biasing means for discharge assistant and/or its casing

222383, 239333, B67D 500

Patent

active

052286029

ABSTRACT:
The trigger operated pumping mechanism for a fluid dispensing device comprises a body. The pumping mechanism comprises a cylinder in the body of the dispensing device, a piston received in the cylinder, a trigger movably mounted to the body and having a front side and a back side, and being coupled to the piston, and a non-metal biasing mechanism for biasing the trigger away from the body to bias the piston coupled to the trigger out of the cylinder. The biasing mechanism includes a separate, non-coiled elongate, generally flat, spring having elongate, opposed flat surfaces and opposite ends and being positioned between the body and the trigger. The trigger back side has a back wall. The spring has one flat surface of one end portion at one end of the spring positioned adjacent the back wall of the trigger and has the other end of the spring positioned rearwardly of the trigger and engaging against the body.

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