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:
Sep. 22, 1998
Filed:
Jul. 07, 1995
Takayoshi Sasaki, Nagoya, JP;
Kotaro Kashiyama, Nagoya, JP;
Daido Metal Company Ltd., Nagoya, JP;
Abstract
There is disclosed an ultrasonic cleaning apparatus in which the amount of gas dissolved in a cleaning liquid in a cleaning vessel is reduced, thereby enabling a cleaning operation efficiently. The cleaning liquid stored in the cleaning vessel, cleans articles, immersed therein, by a cavitation phenomenon caused by an ultrasonic vibrator. The cleaning liquid is fed to a degassing vessel by a discharge pump through a discharge pipe, and is returned to the cleaning vessel by a supply pump through a supply pipe. Thus, the cleaning liquid is circulated between the two vessels. Gas, dissolved in the cleaning liquid in the degassing vessel, makes bubbles since the degassing vessel is kept to a vacuum, so that the cleaning liquid containing a reduced amount of dissolved gas is stored in the cleaning vessel. Therefore, bubbles are less produced by the ultrasonic vibrator, and the cleaning operation can be carried out efficiently.