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:
Jun. 04, 1996
Filed:
Jan. 31, 1995
Applicant:
Inventors:
Douglas H Massey, New Berlin, WI (US);
Bruce Winter, Hudson, NY (US);
Assignee:
Kelley Company, Inc., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01D / ;
U.S. Cl.
CPC ...
14 717 ; 14 695 ; 14 713 ; 254 / ; 254 / ;
Abstract
A dock leveler including a ramp is movable to a raised position by inflation of an inflatable member, such as an air bag assembly. One or more filler members are located within an internal cavity defined by the air bag assembly, to occupy void volume therein. The filler members expedite inflation of the bag assembly when an inflating device is operated to introduce air under pressure into the bag assembly. The filler members also function to maintain the bag assembly in an engaged condition with the underside of the ramp, and to prevent the air bag assembly from fully collapsing in order to prolong bag life.