E - Fixed Constructions – 03 – C
Patent
E - Fixed Constructions
03
C
E03C 1/10 (2006.01) F16K 15/02 (2006.01) F16K 17/26 (2006.01) F16K 24/00 (2006.01) F16K 24/06 (2006.01)
Patent
CA 2271526
A vacuum breaker for use in a fluid supply system is provided. The vacuum breaker comprises a body having an interior, a fluid inlet, a fluid outlet, and an atmospheric air vent. The body is adapted to permit fluid to flow through the interior from the fluid inlet to the fluid outlet. A first seat disposed within the interior of the body. A bonnet having a second seat communicates with the air vent and the interior. A displacable float cup is disposed between the bonnet and the first seat. The float cup adapted to be sealingly seated against the second seat when the vacuum breaker is subject to an open flow condition, and to be sealingly seated against the first seat when the vacuum breaker encounters a pressure loss condition. Gaskets are provided to enhance the seal at the first and second seats. Both seats are above a water level within the body of the vacuum breaker. At the open flow condition the float cup seals the air vent and at the pressure loss condition the float cup opens the air vent. A float cup for use in a vacuum breaker is also provided. The float cup comprises a bottom portion and a top portion sonically welded to the bottom portion. An air pocket is contained within the float cup. A shroud may be attached to the float cup about the periphery of the float cup. The air pocket is positioned so that at least a portion of the air pocket is below the shroud.
Centner Robert Joseph
Kersten Steven Allen
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Watersaver Faucet Co.,
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