Lever mechanism for a mixing valve

Details Lever mechanism for a mixing valve Lever mechanism for a mixing valve

1974-05-07

1978-10-31

Wyche, Benjamin W.

Machine element or mechanism

Mechanical movements

Oscillating to reciprocating and intermittent rotary

1376362, F16H 2102

Patent

active

041227263

ABSTRACT:
The lever mechanism includes an easy-to-clean cowl which covers the end of a fixture containing a mixing valve. A generally cylindrical fulcrum bracket, attached to the valve body, forms the topmost static element of the fixture. The cowl has a central cup that projects centrally into the fulcrum bracket. The mixing valve control stem is pivotally coupled to the bottom of this cup. A cowl skirt surrounds the fulcrum bracket. A fulcrum member, advantageously either a pin or a ball, is attached to the cowl interior and projects into an annular, outwardly opening receiving groove at the periphery of the fulcrum bracket. Tilting of the operating lever cowl moves the valve stem axially to control flow volume. During such tilting the fulcrum member moves radially in the receiving groove; this changes the location of the fulcrum point so as to prevent lateral displacement of the valve stem. Angular motion of the cowl imparts concomitant mixture controlling angular movement to the mixing valve stem.

REFERENCES:
patent: 2471289 (1949-05-01), Sedgwick
patent: 2839083 (1958-06-01), Moen
patent: 3173444 (1965-03-01), Bucknell et al.
patent: 3369566 (1968-02-01), Schmitt et al.
patent: 3433264 (1969-03-01), Parkison

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