摘要：

An improved fluid spray assembly of the type having a primary housing (30), which has an exterior surface with front (32) and rear (34) faces and an opening (36) in the front face that exposes a cavity (38) in the housing, and a check valve (50), which has an exterior surface with upstream (52) and downstream (54) faces, further includes (a) a secondary housing (20) which has an exterior surface with front (22) and rear faces (24) and a fluid flow passage (26) that extends between the secondary housing's faces, and wherein: (b) the primary housing's cavity has a boundary surface which includes a rear portion (40) with a port (42) band a intermediate portion (44) that extends between said cavity opening and said rear portion, (c) the housing exterior surface rear face has an inlet (48) which is connected to the cavity's port by a connecting flow passage (46), and (d) the primary housing cavity's intermediate boundary surface is configured so as to accommodate the placement through the primary housing opening and the holding in place of both the check valve and the secondary housing.

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