B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
15/12.5
B08B 9/02 (2006.01) B08B 9/04 (2006.01) E03F 9/00 (2006.01)
Patent
CA 1161607
METHOD AND IMPLEMENT FOR CLEANING DRAINS Abstract of the Disclosure An implement for cleaning sanitary, industrial or the like drains, said implement having a carriage hub with radially extending cutting means and a correspondingly radially extending plunger means, together with means for wetting the debris in the drain in advance of the cutting means, said plunger means com- prising a plurality of fan shaped elements pivoted between said radially extending cutting means and which are folded backwardly when the implement is pulled forwards through a. drain in a direc- tion parallel to the axis of the hub and which are expanded into a plate when the implement is pulled backwards in an opposite direction. Depending on the configuration of the fan shaped elements, the implement is capable of cleaning drains of various configurations including box culverts and tubular pipes. When the radially extending cutting means are circular segments and the fan shaped elements are circular sectors, said implement preferably further including a circumferentially extending scraping means with transverse circumferentially extending knives affixed thereto.
379835
Clifford Jack R.
Perley-Robertson Hill & Mcdougall Llp
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