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:
Aug. 15, 1989
Filed:
Mar. 31, 1988
Donald L Stephens, Skagit County, WA (US);
James Saunders, Burlington, WA (US);
Paccar Inc., Bellevue, WA (US);
Abstract
A front axle suspension for a vehicle that is soft in ride and stiff in roll is provided. The front axle is coupled to a solid beam. The beam is a relatively nonflexible member. The beam is pivotally coupled at one end thereof to the frame and is freely movable at the other end thereof, being coupled to said frame through a two-shackle coupling that permits vertical displacement and prevents horizontal displacement. Two air bags are coupled between said beam and said frame. The two air bags carry substantially all the weight of the vehicle over the front axle. The two bags are designed to provide a very soft ride. The two bags are positioned longitudinally along the beam such that one of the air bags is displaced a greater distance than the other from the pivotal connection of the beam to the frame. An air line couples the two air bags to each other to permit air to flow from one air bag to the other during movement of the front axle with respect to the frame. An orifice restricts the flow of air between the bags to ensure that damping occurs at a selected frequency, such as the system natural frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile