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:
Sep. 05, 1995
Filed:
Oct. 04, 1993
Applicant:
Inventors:
Robert J Warner, Mukwonago, WI (US);
Charles H Hodges, Ruxton, MD (US);
Donald A Wagner, Wauwatosa, WI (US);
Assignee:
Kelley Company Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01D / ;
U.S. Cl.
CPC ...
14 713 ; 254 / ;
Abstract
An inflatable bag assembly for a dock leveler including a stack of superimposed bags which are joined together along contiguous surfaces. The interiors of the bags are connected to a suitable source of low pressure gas such as air. The stack of superimposed bags is positioned between a supporting surface on a loading dock and a ramp which is hinged to the dock and is movable between a horizontal position and an upwardly inclined position. By supplying air to the bag assembly, the bag assembly is inflated thereby moving the ramp from the horizontal to the upwardly inclined position.