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:
Apr. 17, 1990
Filed:
Dec. 12, 1988
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
732025 ; 7320425 ;
Abstract
A thermal flow sensor has a housing through the inside of which a fluid is allowed to flow, and a supporting pipe passage disposed within and substantially in the center of the housing. A plurality of thermosensitive resistors are supported on the outer periphery of the supporting pipe passage and are disposed within substantially the same plane normal to the flow of the fluid. A fluid temperature sensor is provided within the supporting pipe passage. The flow rate can be detected correctly even when the flow rate of the fluid varies within that same plane, since the sensor is adapted to detect the average flow rate.