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:
Jul. 20, 2004
Filed:
Feb. 19, 2003
Applicant:
Inventor:
Avraham Y. Levi, St. Paul, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60P 9/00 ; B60P 1/00 ; B65F 1/00 ; B65F 3/00 ;
U.S. Cl.
CPC ...
B60P 9/00 ; B60P 1/00 ; B65F 1/00 ; B65F 3/00 ;
Abstract
To reduce the energy needed to unload and reload ladders from and onto the roof of utility vehicles, a ladder rack assembly has been devised which minimizes the movement of the center of gravity of the ladder load when going between a first position atop the vehicle to a second position along a vertical side of the vehicle. To achieve this advantage, the rear and front four-bar linkages are driven by a rotatable drive shaft such that a ladder support member of the front four-bar linkage is at a higher elevation than the ladder support member of the rear four-bar linkage when the two are aligned with the side of the vehicle.