Patent 8069964 was granted and assigned to Tenneco on December, 2011 by the United States Patent and Trademark Office.
A shock absorber includes a piston which has at least one compression fluid passage and at least one rebound fluid passage. A compression valve assembly closes the at least one compression passage and a rebound valve assembly closes the at least one rebound passage. An interconnecting passage connects the at least one compression fluid passage and the at least one rebound fluid passage to define an open flow path through the piston.