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. 02, 1991
Filed:
Feb. 12, 1990
Applicant:
Inventor:
James S Robinson, Houston, TX (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63G / ; B66C / ;
U.S. Cl.
CPC ...
4141396 ; 254900 ; 212191 ; 114230 ;
Abstract
The present invention relates to an improvement in marine cranes. An additional controllable variable lifting capability is operably connected to the load line of a marine crane, which may be motion compensated, to provide a safe initial lift of the cargo from a supply vessel. The additional lifting capability may be used alone or in concert with the drawworks to make the initial portion of the cargo lift. A variation of the improvement may be used in mooring of vessels adjacent a marine installation.