05230625 is referenced by 3 patents and cites 11 patents.

A valve arrangement for controlling a suction stream in a dental suction system, wherein the valve controlling the flow contains a closure element that defines a valve space on one side and a control space on the opposite side. The closure element, such as a membrane, is urged closed when the pressure in the control space is greater than the pressure in the valve space and the movement of the closure element is obtained by actuation of various control valves which control flow in effective lines extending to the control space, which lines have different effective cross sections so as to control the amount of movement of the closure element toward the closed position.

Title
Valve arrangement
Application Number
7/859667
Publication Number
5230625
Application Date
March 30, 1992
Publication Date
July 27, 1993
Inventor
Lutz Beerstecher
Bensheim
DE
Ralf Sutter
Mannheim
DE
Agent
Hill Steadman & Simpson
Assignee
Siemens Aktiengesellschaft
IPC
A61C 17/06
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