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:
Aug. 27, 2019
Filed:
Feb. 25, 2016
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventors:
Anders Lindblom, Sandviken, SE;
Joona Loikkanen, Sandviken, SE;
Assignee:
SANDVIK INTELLECTUAL PROPERTY AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/24 (2006.01); E21B 10/22 (2006.01); E21B 7/28 (2006.01); E21B 10/25 (2006.01);
U.S. Cl.
CPC ...
E21B 10/24 (2013.01); E21B 7/28 (2013.01); E21B 10/22 (2013.01); E21B 10/246 (2013.01); E21B 10/25 (2013.01);
Abstract
A cutter for a boring head having a shaft is mountable at a saddle. A roller body is rotatably mounted about the shaft via bearings housed at a cavity located radially between the shaft and the roller body. A lubrication fluid is configured to flow internally within the shaft via a first and second passageway. An elongate overflow chamber is provided in fluid communication with the passageways to receive thermally expanded lubrication fluid from the cavity.