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:
May. 06, 2008
Filed:
Jul. 28, 2001
Applicants:
Cheal-ki NO, Changwon-shi, KR;
Kee-joo Kim, Changwon-shi, KR;
Jai-seong Sim, Masan-shi, KR;
Inventors:
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 39/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Oil supply device () for a compressor in a refrigerating system including a cylindrical piece () fixed to a lower end of a crankshaft () for rotating together with the crankshaft, a propeller () fitted inside of the piece for making oil to rise by a relative movement with the piece (), and rotation prevention means () fitted to a bottom end of the propeller () for prevention of rotation of the propeller, thereby supplying an adequate amount of refrigerant oil even if the compressor, operative at a low, as well as a high speed, is operated at the low speed.