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:
Mar. 08, 2005
Filed:
Jan. 09, 2003
Yang-hee Cho, Seoul, KR;
Yang-Hee Cho, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Disclosed is a vacuum preventing device for a scroll compressor comprising: a chamber formed at one side of a fixed scroll and having a suction hole, a compression hole, and a discharge hole at an inner circumference surface thereof; an open/close member installed in the chamber and having a seal oil groove at an outer circumference surface thereof for selectively connecting the discharge hole to the suction hole; and an elasticity member installed in the chamber for providing an elasticity force to the open/close member. The device can enhance a compression efficiency of the compressor by preventing gas leakage efficiently and reduce a fabricating cost by improving a design of a clearance and enhancing a tolerance limit range.