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.

Date of Patent:
Feb. 13, 2024

Filed:

Apr. 03, 2018
Applicant:

Cameron International Corporation, Houston, TX (US);

Inventors:

Rolf Gullaksen, Richmond, TX (US);

Erling Tambs, Kristiansand, NO;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66D 3/04 (2006.01); B66D 3/06 (2006.01); E21B 19/02 (2006.01);
U.S. Cl.
CPC ...
B66D 3/043 (2013.01); B66D 3/06 (2013.01); E21B 19/02 (2013.01);
Abstract

A hoisting system of this disclosure includes a drawworks, a crown block or a compensator, a traveling block and at least one sheave assembly connected to the crown block or compensator in 'Low Load/High Speed' mode and connected to the traveling block in “High Load/Low Speed” mode. A method to lift a load using a hoisting system of this disclosure uses a drawworks, a crown block or a compensator, a traveling block and at least one sheave assembly connected to the crown block or compensator in “Low Load/High Speed” mode and connected to the traveling block in “High Load/Low Speed” mode.


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