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:
Jan. 30, 1979
Filed:
Feb. 17, 1978
Applicant:
Inventors:
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7319 / ;
Abstract
A flow rate detector of the type comprising a corona discharge circuit to cause partial ionization of a fluid at a section of a fluid passage and a probe positioned downstream for detecting the amount of ions carried by the fluid as an indication of the fluid flow velocity. To achieve direct detection of mass flow rate even when the fluid exhibits fluctuation in its density, the detector includes a control circuit which serves the function of maintaining the intensity of a discharge current flowing through the corona discharge circuit constant.