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. 30, 2004
Filed:
May. 14, 2002
Applicant:
Inventors:
Ji-yoon Kang, Seoul, KR;
Woo-sup Han, Kyungki-do, KR;
Jun-o Kim, Kyungki-do, KR;
Yong-kyu Byun, Kyungki-do, KR;
Kyu-yong Kim, Kyungki-do, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/600 ; H02K 1/602 ; H02K 4/100 ; F16H 2/514 ; F16H 1/904 ;
U.S. Cl.
CPC ...
H02K 1/600 ; H02K 1/602 ; H02K 4/100 ; F16H 2/514 ; F16H 1/904 ;
Abstract
A linear actuator capable of inducing a linear motion as well as a rotational motion using only two rotors is provided. The linear actuator includes: first and second rotors connected to respective driving force sources; a linear motion unit formed on the first rotor to be linearly movable; and a driving power transmission unit which is fixed to the second rotor and engages the linear motion unit. A linear motion on a rotor can be easily induced using a relative angular velocity difference between two rotors without an additional driving power source for the linear motion.