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. 25, 2018
Filed:
Jun. 13, 2014
Applicant:
Cameron Sense As, Kristiansand, NO;
Inventors:
Håkon F. Bergan, Kristiansand, NO;
Bård H. Kaasin, Gvarv, NO;
Joe R. Berry, Cypress, TX (US);
Alv Repstad, Sønge, NO;
Assignee:
CAMERON SENSE AS, Kristiansand, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); B66D 1/22 (2006.01); B66D 1/52 (2006.01); E21B 19/09 (2006.01);
U.S. Cl.
CPC ...
E21B 19/006 (2013.01); B66D 1/22 (2013.01); B66D 1/52 (2013.01); E21B 19/09 (2013.01);
Abstract
Various hoisting systems with heave compensation are provided. In one embodiment, an apparatus includes a winch having a rotatable drum and a heave compensation system with both active and passive drive input devices. The heave compensation system can be coupled to the rotatable drum so that the active and passive drive input devices can each be used to drive rotation of the rotatable drum in response to heaving motion of the winch. Additional systems, devices, and methods are also disclosed.