Patent · US Active

System and method of detecting dull and worn cutter bits

US9920624B2 · kind B2 · utility

5Cited by

12References

24Claims

0Family size

Assignee

Joy MM Delaware, Inc. · US

Inventors

Edward L. Doheny, II · River Hills, US
Ben Snyman · Pine Township, US
David Stryffeler · Chambersburg, US
Anthony Reid · Plano, US
Hekkie van Dyk · Wexford, US

Key dates

Filing date	Apr 8, 2016
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Apr 10, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A mining machine including a chassis, an actuator, a cutter drum supported by the chassis, the cutter drum driven by the actuator, a cutter bit coupled to the cutter drum, and a controller. The controller includes a processor and memory and is configured to measure a characteristic of the actuator, determine the cutter bit is worn based on the measured characteristic of the actuator, and output a signal when the cutter bit is determined to be worn.

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