| Class Number |
Class Name |
No. of Patents |
| 299/1.05 |
Automatic control; signaling or indicating |
51 |
| 299/1.4 |
Of hard material disintegrating machines |
36 |
| 299/1.5 |
Floor working |
40 |
| 299/1.8 |
Of rotary cutter with advance direction coincident or parallel to rotary axis |
24 |
| 299/1.6 |
Sidewall working (e.g., longwall-type) |
58 |
| 299/1.7 |
Of advancing material handling means or roof support |
24 |
| 299/1.9 |
Of material handling means |
14 |
| 299/1.3 |
Of tunneling apparatus having a wall temporary support |
38 |
| 299/1.1 |
Ore/rock interface determination during cutting |
35 |
| 299/1.2 |
On cutter head |
11 |
| 299/79.1 |
Cutter tooth or tooth head |
34 |
| 299/80.1 |
Adjustable head |
41 |
| 299/85.2 |
Adjustable tooth |
16 |
| 299/102 |
Clamped tooth holder or tooth mount |
67 |
| 299/103 |
Clamped tooth |
35 |
| 299/81.1 |
Cleansing fluid passage |
55 |
| 299/81.2 |
Fluid feed distributor or controller (e.g., manifold) |
69 |
| 299/81.3 |
Nozzle or seal details |
42 |
| 299/82.1 |
Endless-chain type head |
33 |
| 299/84.1 |
Nontracking tooth arrangement |
8 |
| 299/83.1 |
Plural teeth on single link |
10 |
| 299/113 |
Insert or tip mounting feature (e.g., soldering, brazing, friction or interference fit) |
53 |
| 299/100 |
Percussive tooth or bit |
39 |
| 299/108 |
Planar type bit mount |
44 |
| 299/109 |
Tooth mounting spring biased |
36 |
| 299/112R |
Planar type bit |
26 |
| 299/112T |
Planer-type cutter insert or tip shape |
1 |
| 299/101 |
Plural cutting edges on tooth, pick, or bit |
24 |
| 299/85.1 |
Plural heads moving relative to each other |
28 |
| 299/110 |
Rolling or rotatable bit |
52 |
| 299/111 |
Insert or tip shape |
68 |
| 299/106 |
Rolling or rotatable type bit mount |
93 |
| 299/107 |
Having a spring biased retainer |
86 |
| 299/87.1 |
Tooth mounted on helical head portion or head with helical conveying portion |
72 |
| 299/105 |
Wear resistant feature for tool body (e.g., hard facing) |
23 |
| 299/104 |
Wear shield or replaceable wear sleeve |
86 |
| 299/20 |
Expansible breaking-down devices |
13 |
| 299/21 |
Fluid-pressed element |
21 |
| 299/22 |
Piston |
20 |
| 299/23 |
Wedge |
28 |
| 299/29 |
Hard material disintegrating machines |
10 |
| 299/34.01 |
Cutter attached to endless chain or cable (e.g., planer type) |
5 |
| 299/34.09 |
Chain features and connected to miner |
4 |
| 299/34.07 |
Drive details |
18 |
| 299/34.11 |
Guide for adjustment of cutter |
15 |
| 299/34.1 |
Guide, associated with conveyor, for chain or supply lines |
28 |
| 299/34.12 |
Pivoting cutter body |
10 |
| 299/34.04 |
Planer, plow, or knife details |
10 |
| 299/34.05 |
With fluid supply |
7 |
| 299/34.06 |
With vibrator |
0 |
| 299/34.08 |
Vertical height adjustment of entire installation |
9 |
| 299/34.02 |
With auxiliary cutter |
3 |
| 299/34.03 |
Roof-type cutter |
3 |
| 299/73 |
Cutter shiftable horizontally |
23 |
| 299/74 |
Horizontal cutter tooth orbit |
7 |
| 299/75 |
Shiftable vertically |
94 |
| 299/76 |
Cutter shiftable vertically |
62 |
| 299/63 |
Cutting kerfs to form block |
3 |
| 299/36.1 |
Floor-working |
88 |
| 299/37.3 |
Impact or hammering type cutter |
29 |
| 299/37.5 |
Hammer and anvil type |
26 |
| 299/37.4 |
Hydraulic piston and cylinder type |
22 |
| 299/37.1 |
Reciprocating or oscillating cutter |
66 |
| 299/38.1 |
Narrow, channel-forming type |
3 |
| 299/37.2 |
Resonant vibrator driven |
20 |
| 299/39.1 |
Rotary cutter |
30 |
| 299/39.9 |
And having rotatable cutting element |
16 |
| 299/39.4 |
Drum-type |
58 |
| 299/39.6 |
Height adjustment |
62 |
| 299/39.5 |
Shiftable horizontally |
21 |
| 299/39.8 |
Specific mount for fixed projecting cutters |
58 |
| 299/39.7 |
Yieldably mounted cutter |
3 |
| 299/40.1 |
Freely rolling cutter |
26 |
| 299/39.3 |
Slot-type cutter; e.g., pavement saw |
80 |
| 299/41.1 |
Vertical cutter axis |
59 |
| 299/39.2 |
With material handling |
44 |
| 299/77 |
Horizontal cutter tooth orbit |
3 |
| 299/69 |
Percussive-type cutter |
41 |
| 299/70 |
Cutter shiftable horizontally |
34 |
| 299/71 |
Relatively shiftable cutters |
31 |
| 299/30 |
Remote control |
57 |
| 299/55 |
Rotary cutter head with advance direction coincident or parallel to rotary axis |
35 |
| 299/58 |
Machine follows cutter into opening formed thereby |
23 |
| 299/61 |
Radially adjustable cutting area |
14 |
| 299/59 |
Relatively driven cutters |
20 |
| 299/60 |
Cutting area of one encircled by another |
12 |
| 299/62 |
With percussive-type cutter |
11 |
| 299/56 |
With material-handling means |
84 |
| 299/57 |
Cooperates with laterally spaced heads |
39 |
| 299/72 |
Shiftable to operate in vertical or horizontal cutter tooth orbit |
6 |
| 299/42 |
Sidewall-working (e.g., longwall cutter) |
44 |
| 299/47 |
Driven flexible member causes advance |
3 |
| 299/48 |
Cutter shiftable horizontally |
2 |
| 299/49 |
Driver for member rotates about horizontal axis |
2 |
| 299/50 |
Axis transverse to direction of advance |
3 |
| 299/51 |
Horizontal cutter tooth orbit |
2 |
| 299/52 |
Cutter shiftable horizontally |
3 |
| 299/53 |
Vertical cutter tooth orbit |
28 |
| 299/54 |
Cutter bodily shiftable horizontally |
6 |
| 299/43 |
With material-handling means |
199 |
| 299/45 |
Material handler enters cut with cutter |
24 |
| 299/46 |
Rotary impeller |
5 |
| 299/44 |
Undercutting, dislodging and conveying |
3 |
| 299/31 |
Stepper-type advance-causing means |
137 |
| 299/32 |
Planer-type cutter |
21 |
| 299/78 |
Vertical cutter tooth orbit |
39 |
| 299/35 |
Wire saw-type cutter |
10 |
| 299/64 |
With material-handling means |
157 |
| 299/67 |
Material handler enters cut with cutter |
79 |
| 299/68 |
Rotary impeller |
24 |
| 299/65 |
Undercutting, dislodging and conveying |
4 |
| 299/66 |
Undercutter shiftable horizontally |
6 |
| 299/33 |
With mine roof-supporting means |
182 |
| 299/24 |
Ice-working devices |
23 |
| 299/25 |
Relatively moving cutter |
15 |
| 299/27 |
Block-cutting type |
0 |
| 299/28 |
Plural blades |
0 |
| 299/26 |
Reciprocating |
3 |
| 299/3 |
In situ conversion of solid to fluid |
18 |
| 299/5 |
Dissolving or chemical reaction |
177 |
| 299/4 |
Input and output wells |
153 |
| 299/6 |
Melted material recovered |
29 |
| 299/19 |
Mine layouts |
126 |
| 299/95 |
Miscellaneous |
29 |
| 299/10 |
Processes |
78 |
| 299/16 |
Breaking down by direct contact with fluid |
54 |
| 299/17 |
Jetting (e.g., hydraulic mining) |
220 |
| 299/14 |
Directly applying heat or vibration |
100 |
| 299/13 |
Explosive |
207 |
| 299/15 |
Forming blocks (e.g., quarrying) |
31 |
| 299/12 |
Mine safety |
206 |
| 299/11 |
Stabilizing underground structure |
194 |
| 299/18 |
With material-handling |
192 |
| 299/2 |
Tunnel recovery of fluid material |
259 |
| 299/7 |
With separation of materials |
56 |
| 299/9 |
Material mined or excavated underwater |
46 |
| 299/8 |
Separation below surface of earth or water |
72 |
