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Class Number: 299
Class Title: MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL
Subclass Subclass
Number Title
1.05 AUTOMATIC CONTROL; SIGNALING OR INDICATING
1.1 .Ore/rock interface determination during cutting
1.2 ..On cutter head
1.3 .Of tunneling apparatus having a wall temporary support
1.4 .Of hard material disintegrating machines
1.5 ..Floor working
1.6 ..Sidewall working
1.7 ...Of advancing material handling means or roof support
1.8 ..Of rotary cutter with advance direction coincident to
rotary axis
1.9 .Of material handling means
2 TUNNEL RECOVERY OF FLUID MATERIAL
3 IN SITU CONVERSION OF SOLID TO FLUID
4 .Input and output wells
5 .Dissolving or chemical reaction
6 .Melted material recovered
7 WITH SEPARATION OF MATERIALS
8 .Separation below surface of earth or water
9 .Material mined or excavated underwater
10 PROCESSES
11 .Stabilizing underground structure
12 .Mine safety
13 .Explosive
14 .Directly applying heat or vibration
15 .Forming blocks (e.g., quarrying)
16 .Breaking down by direct contact with fluid
17 ..Jetting (e.g., hydraulic mining)
18 .With material-handling
19 MINE LAYOUTS
20 EXPANSIBLE BREAKING-DOWN DEVICES
21 .Fluid-pressed element
22 ..Piston
23 .Wedge
24 ICE-WORKING DEVICES
25 .Relatively moving cutter
26 ..Reciprocating
27 ..Block-cutting type
28 ...Plural blades
29 HARD MATERIAL DISINTEGRATING MACHINES
30 .Remote control
31 .Stepper-type advance-causing means
32 ..Planer-type cutter
33 .With mine roof-supporting means
34 .Planer-type cutter
35 .Wire saw-type cutter
36 .Floor-working
37 ..Reciprocating cutter
38 ...Narrow channel-forming type
39 ..Rotary cutter
40 ...Freely rolling cutter
41 ...Vertical cutter axis
42 .Sidewall-workingg
43 ..With material-handling means
44 ...Undercutting, dislodging and conveying
45 ...Material handler enters cut with cutter
46 ...Rotary impeller
47 ..Driven flexible member causes advance
48 ...Cutter shiftable horizontally
49 ...Driver for member rotates about horizontal axis
50 ....Axis transverse to direction of advance
51 ..Horizontal cutter tooth orbit
52 ...Cutter shiftable horizontally
53 ..Vertical cutter tooth orbit
54 ...Cutter bodily shiftable horizontally
55 .Rotary cutter head with advance direction coincident to rotary
axis
56 ..With material-handling means
57 ...Cooperates with laterally spaced heads
58 ..Machine follows cutter into opening formed thereby
59 ...Relatively driven cutters
60 ....Cutting area of one encircled by another
61 ...Radially adjustable cutting area
62 ...With percussive-type cutter
63 .Endless loop chunk serving cutter
64 .With material-handling means
65 ..Undercutting, dislodging and conveying
66 ...Undercutter shiftable horizontally
67 ..Material handler enters cut with cutter
68 ..Rotary impeller
69 .Percussive-type cutter
70 ..Cutter shiftable horizontally
71 .Relatively shiftable cutters
72 .Shiftable to operate in vertical or horizontal cutter tooth
orbit
73 .Cutter shiftable horizontally
74 ..Horizontal cutter tooth orbit
75 ..Shiftable vertically
76 .Cutter shiftable vertically
77 .Horizontal cutter tooth orbit
78 .Vertical cutter tooth orbit
79 CUTTER HEADS OR TEETH
80 .Adjustable cutting area
81 .Cleansing fluid passage
82 .Chain-type head
83 ..Plural teeth on single link
84 ..Nontracking arrangement
85 .Parts relatively moving during operation
86 ..Rolling tooth
87 .Helical cutting or conveying portion
88 .Plural teeth
89 ..Rotary head
90 ...Cutting direction common to rotary axis
91 .Tooth-mounting
92 ..Resiliently biased retaining means
93 ..Clamped tooth
94 .Percussive
95 MISCELLANEOUS