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:
Jan. 17, 2023
Filed:
Jun. 24, 2020
Lg Electronics Inc., Seoul, KR;
Ki Sun Kim, Seoul, KR;
Sangha Lee, Seoul, KR;
Jebyoung Moon, Seoul, KR;
Taeyoung Noh, Seoul, KR;
Jaeyeol Lee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A rotary compressor has a combined vane-roller structure that may ensure improved productivity and reliability through control of mechanical properties. The rotary compressor includes a coupling groove which is disposed at one side of an outer circumferential surface of the roller, which has a circular arc shape from an outer diameter of the roller towards an inner diameter of the roller, and which is configured to couple a vane and the roller, and includes a ferrosoferric oxide (FeO) film on a surface of the coupling groove. A manufacturing method of the rotary compressor is also described.