F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/16
F16K 24/00 (2006.01)
Patent
CA 1282298
ABSTRACT Disclosed is a vacuum breaker and backflow prevention device for a faucet comprising a body member having a tubular outlet portion integrally joined by a web to a tubular inlet portion of larger diameter than the outlet portion, the web having a plurality of vent holes therethrough and peripherally supporting a flexible, resilient diaphragm and overlying plate member. The plate member has an outer region provided with a plurality of through holes and a central depending shank portion extending through a central hole in the diaphragm. The tubular inlet portion has internal screw threads for attachment to a faucet outlet member whereby the plate and diaphragm are retained in the tubular inlet portion by the outlet member. The tubular outlet portion has external threads for attachment of a hose coupling whereby more than slight water pressure from the faucet causes the diaphragm to flex away from the plate and the shank so that water flows through the holes in the plate and through the central hole in the diaphragm to the outlet portion and the diaphragm covers and blocks the vent holes. A back pressure condition or a vacuum in the faucet causes the diaphragm to seal around the shank and to uncover the vent holes so that water can not flow into the faucet. An air inlet valve upstream of the device ensures that it drains automatically when the faucet is turned off and no hose is connected to it.
531694
Smart & Biggar
Waltec Inc.
LandOfFree
Hose bibb vacuum breaker does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hose bibb vacuum breaker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hose bibb vacuum breaker will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1267797