Mixing valve
AssigneeCrane Co.
InventorsJames W. Holt, John K. Meeks
Life of this patent
Estimating the term…
Abstract
A liquid mixing valve of the single handle type for mixing hot and cold water which incorporates a pair of plungers which are positioned in variable depth cams formed in a slider plate whereby actuation of the plate via a handle displaces the respective plungers from their seated position to permit passage of fluid therethrough.
Claims16
A mixing valve of the type having a single handle for controlling the volume and relative proportion of hot and cold water flowing through the valve including:
- a. a housing adapted to receive a valve cartridge, said housing having a hot water inlet port a cold water inlet port and an outlet;
- b. a valve cartridge positioned in said housing, said cartridge having a plurality of water inlet passages in communication with said inlet water ports, and, a seat in each water inlet passage;
- c. a plunger positioned in each of said water inlet passages, said plunger adapted to be seated within its respective water inlet passage and to be freely slidable therein whereby inlet water displaces said plunger from its respective seat;
- d. a slider plate mounted above said plungers for sliding movement both radially and rotatably in a single plane with respect to the longitudinal axis of said valve cartridge, said plate having a plurality of cams adapted to restrict the movement of said plungers relative to said water inlet passage seats;
- e. means for sliding said plate to thereby position each of said plungers relative to its respective seat to thereby selectively control the volume of water through its passage to the outlet.
A mixing valve of the type having a single handle for controlling the volume and relative proportions of hot and cold water flowing through said valve including hot water and cold water inlet ports communicating with said valve and having a means for discharging said water comprising:
- a. a valve cartridge positioned in a housing, said cartridge having a plurality of water inlet passages, each of said passages having an inlet section and outlet section, the inlet section communicating with a water inlet port and the outlet section having a seat adapted to seat a plunger;
- b. a plunger freely positioned in each outlet section, said plunger adapted for seating in said water outlet section and adapted to being displaced relative to said seat by the flow of water passing through said water inlet passages;
- c. a slider plate mounted above said plungers for sliding movement both radially and rotatably in a single plane with respect to the longitudinal axis of said valve cartridge, said plate having a plurality of cams adapted to restrict the movement of said plungers relative to said water inlet passage seats;
- d. means for slidably moving said slider plate whereby radial movement of said slider plate restricts the total displacement of said plungers relative to their respective seats and rotation restricts the relative displacement of each plunger, thereby selectively controlling the amount and temperature of the outlet water.
Dependencies are inferred from the claim text.