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:
Mar. 09, 1982
Filed:
Aug. 20, 1979
Donald E Barry, Norwood, MA (US);
Igino Lombardo, Sharon, MA (US);
Ortho Diagnostics, Inc., Raritan, NJ (US);
Abstract
A method for the measurement of fluid velocity and fluid flow rate is described which may be applied to a system in which fluid is caused to exit through an orifice to form a free jet. Optical as well as fluidic properties of the jetting fluids are used to determine the mean velocity of the jet between its point of exit from the orifice and at least a preselected detection point. From the mean velocity determination, the fluid flow rate may also be determined. A marker signal perturbation is applied to the jetting fluid at the orifice, and is detected downstream at a stream sensing point which is located a preselected distance from that orifice.