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:
May. 06, 1997
Filed:
Feb. 28, 1995
Michael R Harwood, Junction City, OR (US);
Other;
Abstract
A dolly distributes weight between a highway truck and trailer while at the same time maintaining an extended wheelbase between load bearing axles. A front end of the dolly includes a king pin that joins to a sliding fifth wheel located on the truck frame. A second fifth wheel is joined to the rear end of the dolly and receives a corresponding king pin on the front end of the trailer. A pivot assembly is joined to a center section of the dolly and is pivotally joined to a rear end of the truck frame. The pivot assembly serves to pivot weight between the front and rear end of the dolly and also maintains the dolly in a rigid longitudinal alignment with the truck. Air bags are located between the steerable dolly wheels and the the rear end of the dolly to further increase adjustability of trailer weight distribution.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile