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Electrically controlled fitting

  • US 5,111,846 A
  • Filed: 11/06/1990
  • Issued: 05/12/1992
  • Est. Priority Date: 11/16/1989
  • Status: Expired due to Fees
First Claim
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1. An electrically controlled sanitary fitting having a hot water inlet and a cold water inlet and an outlet and having in each case one hydraulically operable shutoff valve arranged between the relevant inlet and the outlet for releasable blocking of the hot and cold water flow, the hydraulic control circuit of which shutoff valve is connected to the relevant inlet and the outlet and can be closed or interrupted by means of an auxiliary valve for opening and closing the shutoff valve which auxiliary valve is operable by a drive arrangement (32) fed by electricity, wherein a common drive arrangement (32) fed by electricity is provided for both auxiliary valves (70, 70'"'"'), each shutoff valve (40, 42) having a diaphragm-shaped or piston-shaped closure part (56), on the one side of which there is provided a valve seat (52) interacting with the closure part (56) and, on the other side, a pilot control space (60) which is connected to the respective inlet (20,20'"'"') via a passage (62), can be connected via the auxiliary valve (70,70'"'"') to the outlet (24) to open the shutoff valve (40,42) and can be separated from said outlet for closing the shutoff valve, the auxiliary valves being apart from the pilot control spaces, wherein the drive arrangement (32) has a drive member (34) fed by electricity and a transmission element (36) which is in effective connection with said drive member and acts on both auxiliary valves (70,70'"'"'), wherein the drive member (34) has a solenoid arrangement with a plunger (112) which operates both auxiliary valves (70, 70'"'"') via a transmission linkage (114), and wherein each auxiliary valve (70, 70'"'"') has a stationary, annular auxiliary valve seat (130) and a closure element (132) interacting with said auxiliary valve seat having an operating shaft (134) extending through the auxiliary valve seat (130).

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