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:
Oct. 17, 2023
Filed:
Jul. 15, 2020
Applicant:
Ntn Corporation, Osaka, JP;
Inventor:
Koji Sato, Shizuoka, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 41/08 (2006.01); F16D 27/108 (2006.01); F16J 15/3232 (2016.01); F16D 23/12 (2006.01);
U.S. Cl.
CPC ...
F16D 41/088 (2013.01); F16D 27/108 (2013.01); F16J 15/3232 (2013.01); F16D 2023/123 (2013.01);
Abstract
A rotation transmission device is provided which includes rollers disposed between the inner periphery of an outer ring and the outer periphery of an inner ring; an armature supported to axially move when an electromagnet is energized; and a ball ramp mechanism which converts the axial movement of the armature into the motion/movement of a roller cage from an engaged position to a disengaged position. This rotation transmission device further incudes an annular cover member made of aluminum, an O-ring and an oil seal.