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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.:

US 10514025 B1

PDFFull Text
Date of Patent:
Dec. 24, 2019

Filed:

Dec. 04, 2015

Preheater for compressor

Applicant:

Daikin Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Shinichi Ishizeki, Osaka, JP;

Hiroshi Doumae, Osaka, JP;

Yuusuke Kishiwaki, Osaka, JP;

Masahide Fujiwara, Osaka, JP;

Motonobu Ikeda, Osaka, JP;

Assignee:

DAIKIN INDUSTRIES, LTD., Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Kenneth J Hansen

Assistant Examiner:

Chirag Jariwala

Int. Cl.
CPC ...
F04B 39/04 (2006.01); G01F 23/26 (2006.01); F25B 1/00 (2006.01);
U.S. Cl.
CPC ...
F04B 39/04 (2013.01); F25B 1/00 (2013.01); G01F 23/263 (2013.01); G01F 23/266 (2013.01); F25B 2500/27 (2013.01); F25B 2500/31 (2013.01); F25B 2600/024 (2013.01); F25B 2700/03 (2013.01); F25B 2700/04 (2013.01); F25B 2700/2105 (2013.01);
Abstract

A preheater for a compressor that is capable of heating a lubricant oil efficiently with smaller power is provided. A preheater for a compressor includes: a capacitive oil surface sensor that is provided at a compressor used in a refrigerating cycle, and detects an oil surface of a lubricant oil A in the compressor; and a power supply unit that applies high-frequency voltage to the oil surface sensor.

Find Patent Forward Citations

Ishizeki, Shinichi. (2019). Preheater for compressor (U.S. Patent No. 10514025). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10514025

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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