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:
Jan. 07, 1992
Filed:
Jul. 20, 1990
Norbert Ackermann, Eitorf, DE;
Hubert Beck, Eitorf, DE;
BOGE AG, Eitorf, DE;
Abstract
Adjustable vibration damper for motor vehicles with a cylinder containing damping fluid, an axially-movable piston rod immersed therein, and a damping piston attached to the piston rod, which divides the cylinder into two work chambers, whereby a damping valve equipped with a valve body and a control edge controls the effective cross section of a damping passage. The valve body has an antechamber which is in communication with the upper and lower work chamber by means of at least one passage having a check valve, and that starting from the antechamber, there is a constant throttle cross section to the back side of the valve body to pressurize a control pin controlling a throttle passsage of the valve body.