Patent · US Active

Cutter for boring head

US10392865B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Anders Lindblom · Sandviken, SE
Joona LOIKKANEN · Sandviken, SE

Key dates

Filing date	Feb 25, 2016
Grant date	Aug 27, 2019
Priority date	—
Expiry date	Aug 5, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/25
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.