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:
Jun. 21, 2005
Filed:
Nov. 13, 2002
Kazumasa Ohnishi, Nagaoka-shi Niigata, 940-0846, JP;
Kazumasa Ohnishi, Nagaoka-shi Niigata, 940-0846, JP;
Other;
Abstract
A flow rate of fluid moving within a tube having a small diameter can be measured by the steps of: preparing a structure that has first and second oscillation wave generating-detecting means on a surface of a wall along the conduit; moving the fluid in the conduit; generating an oscillation wave in the first oscillation wave generating-detecting means, applying the wave onto the wall, and measuring a period of time required for transmitting the generated oscillation wave to the second oscillation wave generating-detecting means within the wall; generating an oscillation wave in the second oscillation wave generating-detecting means, applying the wave onto the wall, and measuring a period of time required for transmitting the generated oscillation wave to the first oscillation wave generating-detecting means in the wall; and comparing a difference of the periods of time of transmission and separately prepared calibration data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile