Abstract: A tub faucet includes a first shell; a second shell; a cross-shaped first coupling including a tubular member having two sets of two opposite wells at two ends respectively, an externally threaded first tube, an externally threaded second tube; two T-shaped second couplings each including an externally threaded inlet, a tubular first joining member, the first joining member having two opposite tabs on an outer surface, and an externally threaded, tubular second joining member; two knobs rotatably secured to the second joining members respectively; and a spout threadedly secured to the second tube, the spout having a stem configured to open or close the spout. The first joining members are secured to two ends of the tubular member respectively with the tabs inserted into the wells respectively. The first and second shells are complimentarily fastened together with the first and second couplings partially disposed therein.

Abstract: A check valve includes a hollow cylindrical valve body including an inclined rim at a first end, an annular section on an inner surface and tapered to a second end, and an annular groove on an outer surface; a hollow cylindrical outlet member including an axial channel, openings around an end surface, an internal annular trough, an annular flange extending outward from the trough of the outlet member, and an annular groove on an outer surface; a moveable member including an annular groove on an outer surface, a stem distal the groove of the moveable member, and an annular trough on an inner surface; a ring including an axial channel and openings around the channel; and a biasing member having a first end anchored in the trough of the moveable member and a second end anchored in the trough of the outlet member.

Abstract: A mounting bracket for a shower head includes a hollow, cylindrical mounting member including a recess, a channel, and external threads; a screw driven through the channel into a wall; a fastening element including a well, a protuberance, an annular flange, and a receptacle in the well; a sleeve including internal threads secured to the external threads to fasten the sleeve, the fastening element, and the mounting member together; a main body including a channel for receiving a section of a pipe, a hollow, cylindrical projection put on the protuberance to engage the flange, an externally threaded protrusion, and a tunnel member projecting out of the projection; a screw driven through the tunnel member into the receptacle to fasten the main body and the fastening element together; and a cap including internal threads secured to the protrusion to fasten the cap and the main body together.

Abstract: A modular faucet is provided with a pipe including an inner well, an aperture proximate to a first end, a groove at a second end, and a recess communicating with the groove; a tee including an externally threaded hollow cylinder, a projection on an inner surface of the cylinder, and a depression on an outer surface and communicating with the cylinder wherein the recess passes through the projection and is fastened in the groove; a hose having one end threadedly secured to the longitudinal part and an internally threaded other end; a spout including a latch at one end, and an externally threaded projection at one end; and a hollow adapter including a slot on an inner surface, a protuberance on an outer surface, and a protrusion distal the protuberance. The hose passes through the depression, the cylinder, and the pipe to threadedly secure to the spout.

Abstract: A modular faucet is provided with a pipe including an inner well, an aperture proximate to a first end, a groove at a second end, and a recess communicating with the groove; a tee including an externally threaded hollow cylinder, a projection on an inner surface of the cylinder, and a depression on an outer surface and communicating with the cylinder wherein the recess passes through the projection and is fastened in the groove; a hose having one end threadedly secured to the longitudinal part and an internally threaded other end; a spout including a latch at one end, and an externally threaded projection at one end; and a hollow adapter including a slot on an inner surface, a protuberance on an outer surface, and a protrusion distal the protuberance. The hose passes through the depression, the cylinder, and the pipe to threadedly secure to the spout.

Abstract: A Venturi tube device is provided with a Venturi tube; a hollow cylindrical fitting; a shroud; and a hollow, cylindrical flow guide member disposed in the Venturi tube. In a showing operation, air can flow through one communicating hole of the shroud, a space defined by two adjacent ridges on the fitting, a conic hole between the two adjacent ridges, and a transverse hole of the Venturi tube in addition to water flowing through the flow guide member and the Venturi tube.