E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
E03F 5/10 (2006.01) B65D 88/08 (2006.01) E03F 1/00 (2006.01)
Patent
CA 2305895
A vacuum waste tank for use in a vacuum drainage system, The tank has a vacuum intake for attachment to a vacuum source and a waste water intake for attachment to a vacuum pipe. The vacuum source creates a negative pressure in the tank and vacuum pipe so that liquid entering the pipe is pulled into the tank. The tank is made of a thermoplastic material having a flexural modulus sufficient to withstand an external pressure loading caused by the vacuum in the tank without buckling.
Pondelick Mark A.
Stradinger Jay D.
Evac International Oy
Kirby Eades Gale Baker
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