초록 ▼

A hot and cold water mixing valve has a sleeve formed and adapted to fit within a valve fixture such as a kitchen faucet, lavatory faucet or shower/tub control. There is a stem which is positioned within the sleeve and rotatable and reciprocal relative thereto to control discharge through the mixing

A hot and cold water mixing valve has a sleeve formed and adapted to fit within a valve fixture such as a kitchen faucet, lavatory faucet or shower/tub control. There is a stem which is positioned within the sleeve and rotatable and reciprocal relative thereto to control discharge through the mixing valve. The sleeve has hot and cold water inlet ports and an outlet. The stem includes a piston directing flow from the sleeve inlets to the sleeve outlet. The stem also includes a stem driver formed and adapted to have an operating handle mounted thereon with the stem driver being connected to the piston by a thin rod whose diameter is substantially less than the piston outer diameter. The stem is pressure unbalanced, with the amount of unbalance being determined by the cross sectional area of the thin rod. A non-movable seal member is positioned within the sleeve with the thin rod passing through the seal member. The stem driver is attached to the thin rod on one side of the seal member, with the piston being attached to the thin rod on the other side of the seal member. Friction means is effective to provide resistance to relative movement between the stem and sleeve. There are sleeve seal members attached to the exterior of the sleeve to provide a valve closing seal when the piston is in a closed position.

대표청구항 ▼

A hot and cold water mixing valve including a valve fixture such as a kitchen faucet, lavatory faucet or shower/tube control, a sleeve means formed and adapted to fit within the valve fixture and a rotatable and reciprocal step positioned within the sleeve means, said sleeve means having hot and col

A hot and cold water mixing valve including a valve fixture such as a kitchen faucet, lavatory faucet or shower/tube control, a sleeve means formed and adapted to fit within the valve fixture and a rotatable and reciprocal step positioned within the sleeve means, said sleeve means having hot and cold water inlet ports and an outlet, said stem having an inlet and an outlet, with the stem inlet being movable into register with the sleeve means inlet ports and with the stem outlet being registrable with the sleeve means outlet, locating means formed on the exterior of said sleeve means and cooperating with locating means on the interior of the valve fixture for positioning the sleeve means and stem within the valve fixture, said locating means including at least one cam surface on the exterior of said sleeve means which cooperates with a cam surface on the interior of the valve fixture whereby, upon rotation of a fully inserted sleeve means within a valve fixture, the cam surfaces cause the sleeve means to be moved outwardly from the valve fixture.