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. 27, 2022
Filed:
Feb. 07, 2018
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 18/02 (2006.01); F04C 27/00 (2006.01); F01C 19/00 (2006.01);
U.S. Cl.
CPC ...
F04C 18/0261 (2013.01); F04C 18/0215 (2013.01); F04C 18/0284 (2013.01); F04C 27/002 (2013.01); F04C 27/005 (2013.01); F01C 19/005 (2013.01); F04C 18/0269 (2013.01);
Abstract
A tip sealfor a scroll compressor capable of reducing a frictional force between scroll members and the tip seal where the tip sealhas a spiral shape for sealing a compression chamber formed between a fixed scroll and a movable scroll in a scroll compressor provided with the fixed scroll. The movable scroll having a plurality of concave partsbeing formed by partially notching a sliding surfaceon the scroll members, the concave partsbeing arranged on at least one of a spiral inner peripheral surfaceor a spiral outer peripheral surface. Each of the concave partsbeing open to the inner peripheral surfaceor the outer peripheral surface