The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 24, 2013

Filed:

Aug. 20, 2008
Applicant:

Erik Johannessen, Horten, NO;

Inventor:

Erik Johannessen, Horten, NO;

Assignee:

Lifecare AS, Bergen, NO;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for measuring augmented osmotic pressure in a reference cavity is provided, in which the device comprise a substrate frame () attached to a support structure () in which a plurality of transducer devices () are buried. An array of osmotic membranes () is integrated by the support structure and which acts to facilitate a trans-membrane pressure gradient as a function of the osmotic pressure change in a sealed cavity (). The sealed cavity is formed by rigid substrate materials () in which the membranes, support structure and transducer devices only will be subject to induced stress in response to augmented osmotic pressure and thereby generate a pressure induced signal change observed from the transducer devices. The transducer devices may be arranged as piezoresistive elements, as micromechanical switches, as variable capacitive elements or as an optical light source and detector. The device can be used to monitor changes in osmotic pressure in response to a concentration change of a specified dissolved solute particle.


Find Patent Forward Citations

Johannessen, Erik. (2013). Apparatus and method for measuring augmented osmotic pressure in a reference cavity (U.S. Patent No. 8539822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8539822

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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