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. 07, 2017
Filed:
Mar. 06, 2017
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Matthew L. Roessle, Temperance, MI (US);
Karl C. Kazmirski, Temperance, MI (US);
Jeroen K. Paenhuysen, Ypsilanti, MI (US);
Darrell G. Breese, Ypsilanti, MI (US);
Daniel T. Keil, Temperance, MI (US);
Thomas P. Mallin, Temperance, MI (US);
Jeffrey T. Gardner, Woodland Park, CO (US);
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Abstract
A shock absorber is disclosed having a pressure tube forming a working chamber, and a piston assembly slidably disposed within the pressure tube. The piston assembly may divide the working chamber into upper and lower working chambers. The piston assembly may have a piston body defining a first fluid passage extending therethrough and a first valve assembly controlling fluid flow through the first fluid passage. A second fluid passage, separate from the first fluid passage, extends from one of the upper and lower working chambers to a fluid chamber defined at least in part by the pressure tube. A plurality of digital valve assemblies are included and configured to exclusively control all fluid flow through the second fluid passage, and thus all fluid flow between the one of the upper and lower working chambers to the fluid chamber.