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. 21, 2021
Filed:
Jul. 03, 2019
Nihon Spindle Manufacturing Co., Ltd., Hyogo, JP;
Keiichi Asami, Hyogo, JP;
Keiichiro Onishi, Hyogo, JP;
NIHON SPINDLE MANUFACTURING CO., LTD., Hyogo, JP;
Abstract
There is provided an in-liquid plasma device including a tubular flow channel in which a liquid flow, and a cavitation generator and a voltage application unit which are disposed in the tubular flow channel. The cavitation generator generates cavitation in the liquid inside the tubular flow channel. The voltage application unit is located in the tubular flow channel so as to generate plasma by applying a voltage to the liquid in which the cavitation is generated. The cavitation generator has a throttle portion whose inner diameter is smaller than other sites in the tubular flow channel. The throttle portion has an upstream side inclined surface located on an upstream side of a narrowest site of the throttle portion, and a downstream side inclined surface located on a downstream side of the narrowest site of the throttle portion.