E - Fixed Constructions – 03 – C
Patent
E - Fixed Constructions
03
C
137/129
E03C 1/01 (2006.01) E03C 1/04 (2006.01) E03C 1/10 (2006.01)
Patent
CA 1296239
Abstract of the Disclosure A two piece aspirator is constructed to be fitted within a fitting such that an annular clearance is provided between the bore that has two supply inlets and a depending cylindrical section of the aspirator body. A venturi cap member is snap fitted onto the aspirator body and has an outer periphery axially spaced from the end of the cylindrical section to provide an annular opening thereabout which is in communication with a passage through the aspirator body. The venturi or cap has a radial section which spans most of the interior of the cylindrical section and has a frusto-conical section which is complementary to a tapered end of the cylindrical section to provide for a radially extending section of the passageway leading to the annular opening. The passage of water through the annular clearance passing by the annular opening provides a venturi effect and therefore negative pressure resulting in air being sucked through the shower riser when water flows through the tub spout downstream of the fitting and through the passage and annular opening.
589769
Crawford Dennis W.
Turner Larry G.
Masco Corporation Of Indiana
Smart & Biggar
LandOfFree
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