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. 05, 1980
Filed:
Nov. 02, 1978
Sigeyuki Akita, Aichi, JP;
Hisato Wakamatsu, Toyota, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
An ultrasonic wave signal transmitted from an ultrasonic wave transmitter and propagating through an ultrasonic wave propagation medium is received by two ultrasonic wave receivers disposed in a sensor part in a relation spaced apart by a predetermined distance from each other in the direction of transmission of the signal. The sensor part generates a detected phase difference signal having a pulse width corresponding to the phase difference between the ultrasonic wave signal received by one of the two receivers and that received by the other receiver. This detected phase difference signal is applied to a measuring/display part which generates a pulse signal having the number of pulses corresponding to the detected phase difference, and an up/down counter counts the number of pulses of this pulse signal. On the basis of the result of counting by the counter, the temperature of the medium between the transmitter and the receivers is measured and displayed on a display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile