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. 26, 1999
Filed:
Dec. 17, 1996
Patrice Ligneul, Chaville, FR;
Philippe Hocquet, Vanves, FR;
Schlumberger Industries, S.A., Montrouge, FR;
Abstract
A fluidic oscillator is symmetrical about a longitudinal plane of symmetry in which a longitudinal fluid flow direction is contained. The oscillator generates a two-dimensional jet of fluid that oscillates transversely relative to said longitudinal plane symmetry. An ultrasound signal is generated in the fluid flow travelling from one transducer towards another. The ultrasound signal is received and modulated by the oscillations of the jet of fluid. The received signal is processed to determine a volume-related quantity concerning the fluid that has flowed through said fluidic oscillator. The tow ultrasound transducers are substantially in alignment with the longitudinal plane of symmetry.