Hand spray mounts with integral backflow prevention
First Claim
1. A shower hand spray wall mount with integral backflow prevention comprising:
- a housing connected to a water supply, said housing attaching a flexible hose of a hand-held spray head to a wall, said housing having an axially extending bore therewithin and an external hook holding a handle of said hand-held spray head, said housing integrating a IAMPO/ASME mandated backflow preventer, including at least one check valve communicating with an integral vacuum breaking air inlet substituting ambient air for dirty water into a water inlet of said axially extending bore, in the case of vacuum build-up within said bore of said housing, said at least one check valve permitting flow of air into said housing through said vacuum breaking air inlet when dirty water enters said axially extending bore of said housing upon said buildup of the vacuum within said axially extending bore of said housing.
2 Assignments
0 Petitions
Accused Products
Abstract
A wall mount provides the normal hose connection for attachment of the hose of a hand-held spray head while integrating a backflow preventer in an aesthetically pleasing unit. The wall mount preferably uses two spring-biased check valves with an integral air inlet and check valve to form redundant backflow prevention as well as an active vacuum breaker which substitutes ambient air for dirty water in the case of vacuum build-up. The wall mount includes a seal and locking technique which permits exact set-up of the orientation and wall fit of the unit with simple tools. An alternate embodiment of the wall mount also integrates the hook which holds the handle of the hand-held spray head.
100 Citations
9 Claims
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1. A shower hand spray wall mount with integral backflow prevention comprising:
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a housing connected to a water supply, said housing attaching a flexible hose of a hand-held spray head to a wall, said housing having an axially extending bore therewithin and an external hook holding a handle of said hand-held spray head, said housing integrating a IAMPO/ASME mandated backflow preventer, including at least one check valve communicating with an integral vacuum breaking air inlet substituting ambient air for dirty water into a water inlet of said axially extending bore, in the case of vacuum build-up within said bore of said housing, said at least one check valve permitting flow of air into said housing through said vacuum breaking air inlet when dirty water enters said axially extending bore of said housing upon said buildup of the vacuum within said axially extending bore of said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification