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.
Patent No.:
Date of Patent:
Mar. 07, 1995
Filed:
Sep. 08, 1993
Michael Neuman, Chesterland, OH (US);
Case Western Reserve University, Cleveland, OH (US);
Abstract
A plurality of flow sensors are fabricated using thin film deposition techniques on a single substrate. The deposition is performed to provide the proper physical relationship of the individual sensors. In the preferred embodiment, the sensors are thermoresistive elements, which change resistance in response to the flow of air across the individual elements. The change in temperature of the air flow in relation to the ambient provides an indication of the flow and may be used to determine the extent of the flow. The resulting multiple sensor structure may be effectively used as a respiration detector by positioning a different sensor element at each of the airflow orifices (i.e. two nostrils and mouth) of a patient. The individual sensor elements may be electrically coupled in series.