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:
Aug. 06, 2019
Filed:
Oct. 15, 2015
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 53/04 (2006.01); F04B 53/14 (2006.01); F04B 35/04 (2006.01); F04B 49/06 (2006.01); H02K 41/03 (2006.01); H02K 3/28 (2006.01); H02K 11/225 (2016.01);
U.S. Cl.
CPC ...
F04B 53/14 (2013.01); F04B 35/045 (2013.01); F04B 49/06 (2013.01); H02K 41/031 (2013.01); F04B 2203/0401 (2013.01); F04B 2203/0402 (2013.01); H02K 3/28 (2013.01); H02K 11/225 (2016.01);
Abstract
There is provided a linear motor that can detect the displacement of a moving member or the inclination of the moving member in a direction in which two windings are opposed to each other and equipment equipped with the linear motor. A linear motor includes: a first armature having an upper winding and a lower winding opposed to the upper winding through a gap in a vertical direction; a moving member having a permanent magnet and enabled to reciprocate in a longitudinal direction with respect to the first armature; and a current detecting unit that detects an electric current carried through the first armature. The upper winding and the lower winding are in parallel connection.