Patent · US Active

Hybrid retainer sleeve for tool inserted into block

US7997660B2 · kind B2 · utility

29Cited by

10References

20Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Kenneth Monyak · Bristol, US
Daniel Mouthaan · Williamsburg, US
Joseph Fader · Frohnleiten, AT

Key dates

Filing date	Sep 2, 2008
Grant date	Aug 16, 2011
Priority date	—
Expiry date	Jul 15, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/197
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A sleeve utilizing two methods of retention—a friction fit and a rear retention feature—is disclosed. The sleeve includes a circumferentially compressible portion that provides a friction fit when inserted into a bore and includes a projected portion around an end circumference that is used to mate with the rear of a tool block and urges the sleeve (and the tool) rearward. The disclosure also relates to a tool and block assembly, a method of retaining a tool in a holder and a mining machine incorporating the sleeve.

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