Grip handle chuck

Details Grip handle chuck Grip handle chuck

1994-06-24

1995-05-16

Roberts, Jr., Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

279 50, 279 57, 279 74, B09B 902

Patent

active

054148880

ABSTRACT:
An improved plumbers' tool of the type employing a helically wound coiled spring which is controllably inserted into waste lines to remove blockages. In operating the tool of the invention, a storage drum from which the clean-out spring is payed out is rotated, usually by a small electric motor, and the spring is clamped in a chucking mechanism so as to rotate with the housing. The improvement of the present tool resides in the provision of a unique actuating mechanism which provides a substantial mechanical advantage that enables the operator, using only one hand to grip a forwardly positioned stationary handle with the fingers and move a pivotally movable, rearwardly positioned handle with the heel of the hand to cause the chucking mechanism to positively engage the coiled spring in a manner to prevent slippage even under severe torque loading conditions.

REFERENCES:
patent: 3449782 (1969-06-01), Hunt
patent: 4361924 (1982-12-01), Irwin

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