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:
Aug. 15, 1978
Filed:
Oct. 04, 1976
Howard R Hart, Jr, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A passive flowmeter device is described comprising a conduit for conducting fluid flow therethrough, means located at or near one end of the conduit for introducing fluid flow into the conduit, means located at or near the other end of the conduit for removing fluid flow therefrom and means for detecting the presence in the fluid of quantities of a specific tracer substance, said detecting means being disposed within the conduit intermediate the ends thereof. In one form of the device means are provided in communication with the conduit for introducing therein a preselected tracer substance. The device operates by enabling a comparison between the rate of diffusion of the tracer substance in the given fluid with the rate of flow of the fluid as evidenced by the density gradient of quantities of the tracer substance transported by the fluid.