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. 06, 2020
Filed:
Jul. 12, 2018
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Jay Barnes, Clinton Township, MI (US);
SCHAEFFLER TECHNOLOGIES AG & CO. KG, Herzogenaurach, DE;
Abstract
Pistons and clutch assemblies including the pistons are disclosed. A clutch assembly may include at least one rotatable clutch plate, a reaction plate arranged to rotate with and apply a force to the at least one rotatable clutch plate, and a spring configured to urge the reaction plate away from the at least one rotatable clutch plate. A piston may be provided including a first segment formed as a plate and defining an internal space between the first segment and a housing and a second bulk segment that occupies at least a portion (e.g., 50% by volume) of the internal space. At least one bearing rolling element may be arranged between the reaction plate and the piston to permit relative rotational motion therebetween. The second bulk segment may be formed of plastic or a plastic composite and may reduce the amount of hydraulic fluid present in the internal space.