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:
Feb. 21, 2017
Filed:
Mar. 26, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Teruhiko Unno, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21F 17/02 (2006.01); G03B 21/14 (2006.01); F16M 7/00 (2006.01); F16M 11/10 (2006.01); F16M 11/20 (2006.01); F16M 13/02 (2006.01); H02G 3/30 (2006.01);
U.S. Cl.
CPC ...
G03B 21/14 (2013.01); F16M 7/00 (2013.01); F16M 11/105 (2013.01); F16M 11/2014 (2013.01); F16M 11/2021 (2013.01); F16M 13/027 (2013.01); H02G 3/30 (2013.01);
Abstract
A ceiling hanger includes: a first plate fixed to a ceiling surface; a second plate forming a first rotation axis in the up-down direction after fitted to the first plate, and allowing control in the horizontal direction; a third plate forming a second rotation axis in the front-rear direction after fitted to the second plate, and allowing control in the left-right direction; and a fourth plate fixing a projector, forming a third rotation axis in the left-right direction after fitted to the third plate, and allowing control in the up-down direction.