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:
Feb. 20, 2001
Filed:
Jun. 10, 1999
Applicant:
Inventors:
Toshiaki Miyamoto, Aich-ken, JP;
Shuich Sano, Aich-ken, JP;
Assignee:
Honda Electronics Co., Ltd., Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 3/10 ;
U.S. Cl.
CPC ...
B08B 3/10 ;
Abstract
A sensor chamber is formed a side portion of a liquid supply inlet of a housing, a sound pressure sensor is mounted in the sensor chamber, ultrasonic waves from an ultrasonic vibrator provided in the housing are detected by the sound pressure sensor, and a defect of the ultrasonic vibrator is detected when the output of the sound pressure sensor becomes less than a predetermined value.