Valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Jan 27, 2014
filing date -
Jan 27, 2014
priority date (Note) -
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Abstract
A valve comprises an orifice plate (1) having one or more orifices (4) through which a fluid may flow, and one or more piezo-electric elements (2). Each element (2) has a face positioned to contact the orifice plate at an orifice. Each element has a first state in which it abuts the plate to prevent flow of fluid through the associated orifice and a second state in which the face is spaced from the plate to allow flow through the associated orifice. A controller (50) selectively applies a first voltage to an elements to cause it to adopt the first state and applies a second voltage to the one or more elements to cause the elements to adopt the second state.
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