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:
May. 31, 1977
Filed:
Jan. 28, 1974
John W Tanney, Ottawa, CA;
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
A fluid stream velocity measuring apparatus and its method of use wherein a fluid jet is directed from a nozzle along a portion of the flow path of a fluid stream whose velocity is to be measured, towards the open end of one or more receiver tubes. The nozzle and receiver tube or tubes are mounted by mounting means to have a jet forming space, extending between them a distance of at least five times the minimum distance across the nozzle orifice, with the fluid stream having a substantially unobstructed flow path along a surface of the mounting means extending past the nozzle and receiver tube or tubes. The fluid pressure in the receiver tube or tubes is measured to determine the velocity of the fluid stream into which the jet is directed. The internal geometry of the fluid jet nozzle is derived from the jet Reynolds number which is in excess of 1700 and the external geometry of the nozzle and/or receiver is defined to provide a substantially unobstructed flow path past the nozzle and receiver and substantially unrestrained interaction of the fluid stream with the jet.