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. 29, 2017
Filed:
Oct. 21, 2015
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Béla Hofer, Troy, MI (US);
Donald J. Dixon, Ortonville, MI (US);
Kevin Sittner, West Bloomfield, MI (US);
Todd Simcina, Huntington Woods, MI (US);
SCHAEFFLER TECHNOLOGIES AG & CO. KG, Herzogenaurach, DE;
Abstract
A piston assembly for pressurizing a hydraulic chamber is provided. The piston assembly has a cylinder and a piston configured to reciprocate within the cylinder. The piston has a first end in the cylinder and a second end adapted to be acted on by a drive element. The piston assembly also has a spring configured to bias the piston. The piston assembly further has a retainer mounted to an exterior of the cylinder and including a seat surface. The spring is seated on the seat surface. The outer diameter of the spring is less than the outer diameter of the cylinder.