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Class Information
Number: 299/1.2
Name: Mining or in situ disintegration of hard material > Automatic control; signaling or indicating > Ore/rock interface determination during cutting > On cutter head
Description: Process or apparatus where the sensor is located at or near the mineral contacting point.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7360844 |
Geosteering detectors for boring-type continuous miners |
Apr. 22, 2008 |
| 5769503 |
Method and apparatus for a rotating cutting drum or arm mounted with paired opposite circular polarity antennas and resonant microstrip patch transceiver for measuring coal, trona and potash l |
Jun. 23, 1998 |
| 5743031 |
Digging hardware signaling apparatus |
Apr. 28, 1998 |
| 5188426 |
Method for controlling the thickness of a layer of material in a seam |
Feb. 23, 1993 |
| 5181934 |
Method for automatically adjusting the cutting drum position of a resource cutting machine |
Jan. 26, 1993 |
| 4655082 |
Mining machine having vibration sensor |
Apr. 7, 1987 |
| 4368919 |
Holder assemblies for sensitized cutter tools on mining machines |
Jan. 18, 1983 |
| 4367899 |
Holder assemblies for sensitized cutter tools on mining machines |
Jan. 11, 1983 |
| 4181360 |
Cutting force sensor |
Jan. 1, 1980 |
| 4079997 |
Photoelectric method and device for control of a mining machine along a bed of mineral |
Mar. 21, 1978 |
| 4001798 |
Self-contained sensor |
Jan. 4, 1977 |
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