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. 11, 2019
Filed:
Sep. 14, 2018
Itrec B.v., Schiedam, NL;
Joop Roodenburg, Schiedam, NL;
Diederick Bernardus Wijning, Schiedam, NL;
Pieter Dirk Melis Van Duivendijk, Schiedam, NL;
ITREC B.V., Schiedam, NL;
Abstract
An offshore drilling vessel includes a floating hull having a moonpool, a drilling tower positioned on the hull at or near the moonpool, a tubular string main hoisting device including a main hoisting winch and main cable connected to the main hoisting winch, a crown block mounted on the drilling tower, a travelling block suspended from the crown block in a multiple fall arrangement of the main cable, a mobile working deck and an integrated heave compensation system including a main cable heave compensation sheave in a path of the main cable between the main hoisting winch and the travelling block, a hydraulic sheave compensator connected to the main cable heave compensation sheave to provide a heave compensated motion of the travelling block, and a hydraulic deck compensator connected to the hull and to the mobile working deck to provide a heave compensated motion of the working deck relative to the hull within the heave compensation motion range.