Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Reexamination Certificate
2007-05-29
2007-05-29
Chin, Randall (Department: 1744)
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
C015S104310
Reexamination Certificate
active
10404239
ABSTRACT:
A belt driving pulley, as typically used in a belt driven, drum-type drain cleaning machine and/or any other belt driven machinery, is disclosed wherein slippage between the pulley and the motor drive shaft occurs if a predetermined resisting torque is applied to the pulley by the belt.
REFERENCES:
patent: 2926372 (1960-03-01), O'Brien
patent: 5265301 (1993-11-01), Irwin
Chin Randall
Frost Brown Todd LLC
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