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:
Dec. 13, 2016
Filed:
Jun. 23, 2015
Hendrickson Usa, Llc, Itasca, IL (US);
Bun-Hiong Chua, Naperville, IL (US);
Anthony Joseph Bills, Romeoville, IL (US);
Hendrickson USA, L.L.C., Itasca, IL (US);
Abstract
A pneumatic control system for a heavy-duty vehicle includes an air supply in fluid communication with a height control valve and an air spring. An air lock valve is in fluid communication with the height control valve and the air spring, and is also in fluid communication with a blank cavity. The air lock valve includes an 'air lock off' position and an 'air lock on' position. When the air lock valve is in the “air lock off” position, fluid flows from the height control valve, through the air lock valve to the air spring. When the air lock valve is in the “air lock on” position, fluid communication between the air spring, the air lock valve and the height control valve is prevented and, instead, fluid flows from the air spring, through the air lock valve to the blank cavity.