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. 18, 1977
Filed:
Aug. 16, 1976
James O Elliott, Xenia, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An auxiliary vehicle body support and leveler device of the type commonly known as a load leveling shock absorber includes a non-magnetic cover fixed to the vehicle body, a pair of magnetic strips vertically aligned and separated on the outer surface of the cover and a pair of magnetic reed switches, one associated with each magnetic strip, the reed switches being horizontally disposed with one reed adjacent the respective magnetic strip so that the reed switch closes in respond to the presence of a magnetic pole anywhere along the strip. The device also includes a main body fixed to the vehicle running gear and defining a variable volume chamber with the cover, the main body having mounted thereon, within the cover, a permanent magnet disposed with one pole adjacent the magnetic strips and adapted to move vertically between the strips as the main body and cover move relative to one another. The reed switches actuate a mechanism to control the movement of pressurized fluid in and out of the variable volume chamber to maintain the vehicle body at a substantially constant height.