B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
15/11
B08B 9/02 (2006.01) A47L 7/00 (2006.01) E03C 1/308 (2006.01)
Patent
CA 1331424
ABSTRACT OF THE INVENTION The present invention discloses a method and apparatus for open- ing drains and the like, and includes a suitable vacuum/pressure source such as a household or industrial wet/dry vacuum cleaner with a control mechanism fitted to the vacuum cleaner or an intermediate receptacle for sequentially applying vacuum/pressure pulses to a clogged drain for loosening an purging the blockage occurring in the drain.
602335
Lemaks Industries Inc.
Marks & Clerk
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