Peter Bates

US Patent:

7000854, Feb 21, 2006

Filed:

Nov 8, 2002

Appl. No.:

10/291157

Inventors:

Michael L. Malek - North Olmsted OH, US
W. Randall Tucker - Oberlin OH, US
Peter Bates - Framingham MA, US
Gaurav Rohatgi - Franklin MA, US

Assignee:

Moen Incorporated - North Olmsted OH

International Classification:

A62C 31/00
F16K 11/14

US Classification:

239445, 239525, 239448, 239449, 239569, 137871, 13762548

Abstract:

A spray head for a faucet or the like has a wand body defining a flow path from an inlet to first and second outlets. Diverter seats are provided so a face seal on a diverter spool can direct flow to the first or second outlet. The spool is positioned by a trigger acting on cam surfaces formed on a toggle. A spring biases the toggle to one of two stable states. Movement of the spool by the trigger causes the toggle to change states so subsequent actuation of the trigger causes the spool to move in the opposite direction. The wand body also has a pause button that reciprocates in a chamber that is part of the flow path. The chamber includes a valve seat and the pause button has a spool having a face seal that is engageable with the valve seat to shut off flow through the spray head. A return spring causes separation of the pause button's face seal upon release of pressure on the pause button. The pause button's seals in the chamber are arranged to have equal diameters and thus provide balanced hydraulic forces on the spool.