Plunger shaft retainer and trigger release mechanisms for user-s

Details Plunger shaft retainer and trigger release mechanisms for user-s Plunger shaft retainer and trigger release mechanisms for user-s

1995-06-27

1997-08-05

Huson, Gregory L.

Dispensing

With discharge assistant

Container with follower

B67D 542

Patent

active

056533632

ABSTRACT:
Simple and economical drive mechanism controls for incorporation in a manually operated caulking gun. The controls include various restraint springs and reeds to afford the caulk gun user the option of releasing pressure (to avoid drips) or not upon full release of the trigger, and a resistance clip to provide some restraint against the plunger shaft inadvertently sliding backward when the trigger is fully released and pressure is removed in the dripless drive context.

REFERENCES:
patent: 4081112 (1978-03-01), Chang
patent: 5197635 (1993-03-01), Chang
patent: 5381931 (1995-01-01), Chang

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