US Patent Class 299
MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL



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Current as of: June, 1999
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  DF  CLASS NOTES
1.05  DF  AUTOMATIC CONTROL; SIGNALING OR INDICATING
1.1  DF  .~ Ore/rock interface determination during cutting
1.2  DF  .~.~ On cutter head
1.3  DF  .~ Of tunneling apparatus having a wall temporary support
1.4  DF  .~ Of hard material disintegrating machines
1.5  DF  .~.~ Floor working
1.6  DF  .~.~ Sidewall working
1.7  DF  .~.~.~ Of advancing material handling means or roof support
1.8  DF  .~.~ Of rotary cutter with advance direction coincident to rotary axis
1.9  DF  .~ Of material handling means
2  DF  TUNNEL RECOVERY OF FLUID MATERIAL
3  DF  IN SITU CONVERSION OF SOLID TO FLUID
4  DF  .~ Input and output wells
5  DF  .~ Dissolving or chemical reaction
6  DF  .~ Melted material recovered
7  DF  WITH SEPARATION OF MATERIALS
8  DF  .~ Separation below surface of earth or water
9  DF  .~ Material mined or excavated underwater
10  DF  PROCESSES
11  DF  .~ Stabilizing underground structure
12  DF  .~ Mine safety
13  DF  .~ Explosive
14  DF  .~ Directly applying heat or vibration
15  DF  .~ Forming blocks (e.g., quarrying)
16  DF  .~ Breaking down by direct contact with fluid
17  DF  .~.~ Jetting (e.g., hydraulic mining)
18  DF  .~ With material-handling
19  DF  MINE LAYOUTS
20  DF  EXPANSIBLE BREAKING-DOWN DEVICES
21  DF  .~ Fluid-pressed element
22  DF  .~.~ Piston
23  DF  .~ Wedge
24  DF  ICE-WORKING DEVICES
25  DF  .~ Relatively moving cutter
26  DF  .~.~ Reciprocating
27  DF  .~.~ Block-cutting type
28  DF  .~.~.~ Plural blades
29  DF  HARD MATERIAL DISINTEGRATING MACHINES
30  DF  .~ Remote control
31  DF  .~ Stepper-type advance-causing means
32  DF  .~.~ Planer-type cutter
33  DF  .~ With mine roof-supporting means
63  DF  .~ Cutting kerfs to form block
34.01  DF  .~ Cutter attached to endless chain or cable (e.g., planer type)
34.02  DF  .~.~ With auxiliary cutter
34.03  DF  .~.~.~ Roof-type cutter
34.04  DF  .~.~ Planer, plow, or knife details
34.05  DF  .~.~.~ With fluid supply
34.06  DF  .~.~.~ With vibrator
34.07  DF  .~.~ Drive details
34.08  DF  .~.~ Vertical height adjustment of entire installation
34.09  DF  .~.~ Chain features and connected to miner
34.1  DF  .~.~ Guide, associated with conveyor, for chain or supply lines
34.11  DF  .~.~ Guide for adjustment of cutter
34.12  DF  .~.~ Pivoting cutter body
35  DF  .~ Wire saw-type cutter
36.1  DF  .~ Floor-working
37.1  DF  .~.~ Reciprocating or oscillating cutter
37.2  DF  .~.~.~ Resonant vibrator driven
38.1  DF  .~.~.~ Narrow, channel-forming type
37.3  DF  .~.~ Impact or hammering type cutter
37.4  DF  .~.~.~ Hydraulic piston and cylinder type
37.5  DF  .~.~.~ Hammer and anvil type
39.1  DF  .~.~ Rotary cutter
39.2  DF  .~.~.~ With material handling
39.3  DF  .~.~.~ Slot-type cutter; e.g., pavement saw
39.4  DF  .~.~.~ Drum-type
39.5  DF  .~.~.~.~ Shiftable horizontally
39.6  DF  .~.~.~.~ Height adjustment
39.7  DF  .~.~.~.~ Yieldably mounted cutter
39.8  DF  .~.~.~.~ Specific mount for fixed projecting cutters
39.9  DF  .~.~.~ And having rotatable cutting element
40.1  DF  .~.~.~ Freely rolling cutter
41.1  DF  .~.~.~ Vertical cutter axis
42  DF  .~ Sidewall-working (e.g., drum-type cutter)
43  DF  .~.~ With material-handling means
44  DF  .~.~.~ Undercutting, dislodging and conveying
45  DF  .~.~.~ Material handler enters cut with cutter
46  DF  .~.~.~ Rotary impeller
47  DF  .~.~ Driven flexible member causes advance
48  DF  .~.~.~ Cutter shiftable horizontally
49  DF  .~.~.~ Driver for member rotates about horizontal axis
50  DF  .~.~.~.~ Axis transverse to direction of advance
51  DF  .~.~ Horizontal cutter tooth orbit
52  DF  .~.~.~ Cutter shiftable horizontally
53  DF  .~.~ Vertical cutter tooth orbit
54  DF  .~.~.~ Cutter bodily shiftable horizontally
55  DF  .~ Rotary cutter head with advance direction coincident to rotary axis
56  DF  .~.~ With material-handling means
57  DF  .~.~.~ Cooperates with laterally spaced heads
58  DF  .~.~ Machine follows cutter into opening formed thereby
59  DF  .~.~.~ Relatively driven cutters
60  DF  .~.~.~.~ Cutting area of one encircled by another
61  DF  .~.~.~ Radially adjustable cutting area
62  DF  .~.~.~ With percussive-type cutter
64  DF  .~ With material-handling means
65  DF  .~.~ Undercutting, dislodging and conveying
66  DF  .~.~.~ Undercutter shiftable horizontally
67  DF  .~.~ Material handler enters cut with cutter
68  DF  .~.~ Rotary impeller
69  DF  .~ Percussive-type cutter
70  DF  .~.~ Cutter shiftable horizontally
71  DF  .~ Relatively shiftable cutters
72  DF  .~ Shiftable to operate in vertical or horizontal cutter tooth orbit
73  DF  .~ Cutter shiftable horizontally
74  DF  .~.~ Horizontal cutter tooth orbit
75  DF  .~.~ Shiftable vertically
76  DF  .~ Cutter shiftable vertically
77  DF  .~ Horizontal cutter tooth orbit
78  DF  .~ Vertical cutter tooth orbit
79.1  DF  CUTTER TOOTH OR TOOTH HEAD
85.1  DF  .~ Plural heads moving relative to each other
80.1  DF  .~ Adjustable head
81.1  DF  .~ Cleansing fluid passage
81.2  DF  .~.~ Fluid feed distributor or controller (e.g., manifold)
81.3  DF  .~.~ Nozzle or seal details
82.1  DF  .~ Endless-chain type head
83.1  DF  .~.~ Plural teeth on single link
84.1  DF  .~.~ Nontracking tooth arrangement
85.2  DF  .~ Adjustable tooth
87.1  DF  .~ Tooth mounted on helical head portion or head with helical conveying portion
100  DF  .~ Percussive tooth or bit
101  DF  .~ Plural cutting edges on tooth, pick, or bit
102  DF  .~ Clamped tooth holder or tooth mount
103  DF  .~ Clamped tooth
104  DF  .~ Wear shield or replaceable wear sleeve
105  DF  .~ Wear resistant feature for tool body (e.g., hard facing)
106  DF  .~ Rolling or rotatable type bit mount
107  DF  .~.~ Having a spring biased retainer
108  DF  .~ Planar type bit mount
109  DF  .~.~ Tooth mounting spring biased
110  DF  .~ Rolling or rotatable bit
111  DF  .~.~ Insert or tip shape
112  DF  .~ Planer-type cutter insert or tip shape
113  DF  .~ Insert or tip mounting feature (e.g., soldering, brazing, friction or interference fit)
95  DF  MISCELLANEOUS