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:
Nov. 27, 2001
Filed:
Apr. 12, 2000
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A damper (,) for damping tactile vibration (FIG.,) caused by pressure changes induced in hydraulic fluid by an operational characteristic of a hydraulic-operated brake (,) when the brake is braking a rotating object (,). A piston (,) is displaceable within a housing bore (,) and divides the bore into a first chamber (,) confronting one axial face of the piston and a second chamber (,) confronting an opposite axial face of the piston. A port (,) communicates hydraulic fluid to the first chamber such that increasing hydraulic fluid pressure is effective to displace the piston toward the second chamber. A spring (,) that is operated by displacement of the piston within the bore resists piston displacement toward the second chamber as hydraulic fluid pressure increases and aids piston displacement toward the first chamber as hydraulic fluid pressure decreases. The invention is useful in hydraulic-operated motor vehicle brakes.