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. 20, 1981
Filed:
Aug. 23, 1979
Charles E Hawk, Newport News, VA (US);
Danny K Livingston, Hampton, VA (US);
Teledyne, Inc., Los Angeles, CA (US);
Abstract
A length of conduit is coupled at its ends to a heat sink. A pair of thermocouples are joined to the conduit at spaced points intermediate the ends of the conduit. A conductive post is connected at one of its ends to the heat sink and its other end is joined to a location on the conduit, midway between the thermocouples, by conductive material having a higher electrical resistance than both of the joined elements. A coil arrangement is associated with the post and is energized to cause heating current to pass through the post, the high resistance conductive material and the conduit. The heat generated by the flow of heating current is concentrated at the midpoint between the thermocouples. The thermocouples produce outputs representative of the flow of fluid through the conduit.