Abstract:
The shutoff valve comprises a valve body having outwardly facing axially aligned cups each receiving a hollow valve cage upon which a sealing member is peripherally mounted. The sealing member forms an expansible pressure chamber communicating on the outside with an inlet, and on its inside with a spool fitted into the cage. The angular position of the spool determines either a sealed or an open position of the pressure chamber. The spools are connected together for movement in unison.
Abstract:
A cup-shaped recess has four circularly arrayed ports, hot and cold inlet ports on opposite sides and two outlet ports in quadrature relationship. A valve post projects from and registers with the four ports. The post provides laterally opening hot and cold water openings at its outer end controlled by a cylindrical valve member, and at its outer end a pair of slots. The post has large passages establishing the requisite communication between the four ports, the hot and cold water valve-controlled openings and the slots.
Abstract:
This invention relates to a single-handled valve for controlling both combined volume and relative proportion of hot and cold water. A control valve stem extends through a moldable sleevelike sealing member, the sleeve-like sealing member cooperating with hot and cold water inlet openings. The axial and angular positions of the stem determine the combined volume and relative proportion while the sleeve-like sealing member performs all of the sealing functions between the inlet openings and the valve outlet.
Abstract:
The non-rising stem valve includes a hollow cartridge cage open at its top to receive a plug-like control member. A collar at the bottom of the cage projects eccentrically therefrom to accommodate a tubular seal member that forms both a static and dynamic seal. The valve body accommodates the cage and provides an accentric recess for the collar and seal member. The control member has a flat lower surface at which the plug passage opens for transit across the upper end of the seal member. The single seal member is inserted and removed with the cage as a unit, and is easily replaced. An internal groove in the seal member forms a lip for access of fluid under pressure to provide a supplemental sealing force.
Abstract:
A common casting provides hot and cold water inlets to a mixer valve and two outlet ports, one for the shower and the other for the tub. The casting provides a chamber for a hollow diverter valve member. The diverter valve member has a lateral outlet at one end registrable selectively with the tub and shower ports. An inlet to the interior of the hollow diverter valve member is formed at the other end. Peripheral O-rings on opposite sides of the inlet provide a seal. These O-rings are located in eccentric grooves so that a lateral thrust is imposed on the diverter valve member. The thrust seals the lateral outlet and prevents undesired flow to the opposite outlet port.
Abstract:
The popup plunger has an offset connector at its lower end cooperable with the end of a ball-mounted lever. In one mode of connection, the ball-mounted lever positively interlocks the plunger, preventing its being lifted out of the plunger casing. In the alternate mode of connection, an interlock is provided as in the first mode; however, unknown to the vandal or unadvised person, the interlock is released by a simple angular movement of the plunger resulting from the flexibility and resilience of the plunger connector itself.
Abstract:
A ceramic valve plate is provided with a plastic liner cap that cooperates first, with the operating arm so as to minimize contact pressure and second, with a plastic back bearing so as to minimize sliding friction. The operating arm carries a cylindrical cross bar that fits into the recess of the valve plate lined by flanges of the liner cap.