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:
Jul. 01, 2008
Filed:
May. 31, 2002
Xiufeng Gao, Xi'an, CN;
IN Kyu Kim, Jinhae-shi, KR;
Kyeong Ho Kim, Changwon-shi, KR;
Young Joo Bae, Changwon-shi, KR;
Yongzhang Yu, Xi'an, CN;
Shiyu Feng, Xi'an, CN;
Xiufeng Gao, Xi'an, CN;
In Kyu Kim, Jinhae-shi, KR;
Kyeong Ho Kim, Changwon-shi, KR;
Young Joo Bae, Changwon-shi, KR;
Yongzhang Yu, Xi'an, CN;
Shiyu Feng, Xi'an, CN;
LG Electronics Inc., Seoul, KR;
Abstract
A multi-stage compressor is disclosed, which comprises: two motion converters driven by one driving shaft and converting a rotary motion to a straight-line reciprocating motion; first and second pistons () connected to one of the motion converters in opposite directions and moving reciprocatively in a straight line; and third and fourth pistons () connected to the other one of the motion converters in opposite directions, arranged at a predetermined angle with respect to the first and second pistons (), and moving reciprocatively in a straight line, and which is characterized in that at least two of the four pistons operate for first-stage compression and at least one of the others operate for second-stage compression.