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Patent Searching and Data


Title:
MICROMECHANICAL VALVE FOR MICROMECHANICAL DOSING DEVICES
Document Type and Number:
WIPO Patent Application WO/1993/010385
Kind Code:
A1
Abstract:
The object of the invention is to allow the smallest doses of substances to be supplied and shut off over a variable period of time in a very reliable manner and with stable operation. The new micromechanical valve essentially has three superimposed layers (1, 2, 3). The central layer is designed as a valve membrane (2) and the top layer is designed as a thin driving membrane (3). An actuating element (4) for controlling the valve is arranged on the driving membrane (3). The valve membrane (2) has on both sides shaped channel and chamber forming inlet and outlet structures, a central bore (9), its central area is non-detachably secured to the driving membrane (3) and releasably attached to the bottom layer (1), without hindering the flow of substance through the inlet channel (5), inlet chamber (6), bore (9) and, in the active state, through the outlet chamber (6) and outlet channel (8).

Inventors:
Joswig, Jürgen (Zöllmener Str. 14, Dresden, D-8029, DE)
Application Number:
PCT/DE1992/000976
Publication Date:
May 27, 1993
Filing Date:
November 19, 1992
Export Citation:
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Assignee:
Joswig, Jürgen (Zöllmener Str. 14, Dresden, D-8029, DE)
International Classes:
F16K7/14; F15C5/00; F16K99/00; (IPC1-7): F15C5/00; F16K7/14
Other References:
PATENT ABSTRACTS OF JAPAN vol. 015, no. 290 (M-1139)1991
Attorney, Agent or Firm:
LIPPERT, STACHOW, SCHMIDT & PARTNER (Löscherstraße 33, P.O. Box 2438, Dresden, D-8019, DE)
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