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:
Dec. 09, 1980
Filed:
Oct. 23, 1978
Applicant:
Inventors:
Gerald P Lamer, Sturgeon Bay, WI (US);
Arnold Petersen, Sturgeon Bay, WI (US);
Norbert W Lenius, Sturgeon Bay, WI (US);
Assignee:
Marine Travelift, Inc., Sturgeon Bay, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
212147 ; 1051 / ; 254 / ; 212189 ; 212166 ; 212208 ;
Abstract
A hatch cover crane having a hydraulically actuated jack assembly for realigning a hatch cover carried by the hatch cover crane with a ship's cargo hold opening. The jack is extended downward onto one of a pair of support rails, over which the hatch cover crane is moved, to raise one end of the hatch cover crane off the rails. While one end of the crane is raised off the rails, an opposite end is freely driven to facilitate alignment of the hatch cover carried by the hatch cover crane with the cargo hold opening.