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US 6,102,897 AGranted
Microvalve
OwnerVolker Langinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a microvalve for disposable use with a casing with at least one valve seat and a closing element fusible under thermal application for the opening and/or closing of the microvalve with electrical heating elements serving the thermal application being provided.
Claims16
A microvalve for disposable use comprising:
- a casing;
- at least one valve seat formed in the casing;
- a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve;
- and
- at least one electrical heating element thermally coupled to the closing element for supplying heat to the closing element;
- wherein, upon fusing, a central portion of the closing element melts open for opening the microvalve or the closing element melts into a central portion for closing the microvalve.
3 more elements
A microvalve for disposable use comprising:
- a casing;
- at least one valve seat formed in the casing;
- a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve;
- and
- at least one electrical heating element comprising a perforated resistance plate, wherein the closing element is applied to the perforated resistance plate by at least one of pressing, gluing, welding and fusing under thermal application;
- wherein, upon fusing, a central portion of the closing element melts open for opening the microvalve or the closing element melts into a central portion for closing the microvalve.
3 more elements
A microvalve for disposable use comprising:
- a casing;
- at least one valve seat formed in the casing;
- a closing element disposed in the at least one valve seat, the closing element being fusible under thermal application for opening or closing of the microvalve;
- and
- at least one electrical heating element thermally coupled to the closing element, wherein the electrical heating element comprises a thermostatically controlled, perforated PTC (Positive Temperature Coefficient) resistor.
2 more elements
Dependencies are inferred from the claim text.