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:
Oct. 06, 1987
Filed:
Dec. 13, 1985
Rolanz Blanz, Heiligkreuzsteinach, DE;
Graubremse GmbH, Heidelberg, DE;
Abstract
The control arrangement is equipped with a compressed air source, at least one leveling valve (15), with air suspension bellows (24) assigned to at least one vehicle axle, a switching valve (8) and an electric switch (1), which permits controlling the positions Stop, Raise, Lower and Drive. The switching valve (8) is electrically driven by two solenoid valves (6 and 7) and connects or interrupts the different pneumatic lines as is common in the art. With a no-pressurized switching valve (8) and/or non-energized solenoid valves (6, 7), however, the respective pneumatic lines (17, 18) from the switching valve (8) to the leveling valve (15) on the one hand and to the air suspension bellows (24) on the other hand are closed off. The positions Raise, Lower and Drive are assigned to the three activated positions of the two solenoid valves (6, 7).