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:
Dec. 19, 2023
Filed:
Aug. 06, 2019
Applicant:
Ebara Corporation, Tokyo, JP;
Inventors:
Naoki Toyomura, Tokyo, JP;
Mitsuru Miyazaki, Tokyo, JP;
Assignee:
EBARA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 23/292 (2006.01); B24B 37/34 (2012.01); B08B 3/02 (2006.01); B08B 3/04 (2006.01); B24B 37/005 (2012.01);
U.S. Cl.
CPC ...
G01F 23/2921 (2013.01); B08B 3/02 (2013.01); B08B 3/04 (2013.01); B24B 37/005 (2013.01); B24B 37/34 (2013.01);
Abstract
A sensor target cover capable of preventing an optical liquid level detection sensor from erroneously detecting a rise in a liquid level is provided. A sensor target cover is used in combination with an optical liquid level detection sensor. The sensor target cover includes a reflecting plate, an inner wall structure surrounding the reflecting plate, and an outer wall structure surrounding the inner wall structure. A gap is formed between the inner wall structure and the outer wall structure.