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:
Feb. 19, 2019
Filed:
Oct. 10, 2016
Applicant:
Cameron International Corporation, Houston, TX (US);
Inventors:
Michael R. Netecke, Houston, TX (US);
Rogelio Cabrera, Houston, TX (US);
Assignee:
Cameron International Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D 5/14 (2006.01); F16D 55/22 (2006.01); F16D 55/225 (2006.01); E21B 19/00 (2006.01); F16D 65/12 (2006.01); F16H 57/025 (2012.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F16D 55/225 (2013.01); B66D 5/14 (2013.01); E21B 19/008 (2013.01); F16D 65/128 (2013.01); F16H 57/025 (2013.01); F16H 2057/02069 (2013.01);
Abstract
A drawworks gearbox includes additional braking on the input side of the gearbox to provide a redundant emergency brake and, optionally, a separate parking brake with the drum-side brakes being the emergency brake. An air-cooled brake disc is attached to a high speed coupling connected to the gearbox input pinion. A hydraulic-apply, spring-release brake is mounted to the gearbox housing at each pinion location and arranged to act on its respective disc.