Power driven drain cleaner with safety overload clutch

Details Power driven drain cleaner with safety overload clutch Power driven drain cleaner with safety overload clutch

1977-05-05

1978-08-08

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

81 524A, B08B 902

Patent

active

041047575

ABSTRACT:
A power driven drain cleaner which utilizes an elongated flexible sewer snake that is motor driven at one end and connected to a sewer cleaning head at the other end. An overload slip or escapement clutch is positioned between the sewer cleaning head and the adjacent free end of the sewer snake. The slip clutch is a spring loaded clutch which gives off vibration clicks when slippage is occurring within the clutch upon application of a predetermined torque created between the snake and the cleaning head. The vibration clicking action of the clutch acts as a feedback signal which is fed to the power driven end of the snake for detection by the person operating the power driven drain cleaner, to indicate an obstruction has been met by the cleaning head in the sewer line and maximum safe torque is being applied to the sewer snake.

REFERENCES:
patent: 2169543 (1939-08-01), Sullivan
patent: 3574878 (1971-04-01), Shames
patent: 3662628 (1972-05-01), Schnepel

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