| Class Number |
Class Name |
Patents |
| 175/1 |
With seismic shock generating |
43 |
| 175/108 |
Common drive or advancing means for concurrently boring along laterally spaced axes |
17 |
| 175/11 |
Boring by directly applying heat to fluidize or comminute |
24 |
| 175/113 |
With means to simultaneously feed and rotate tool from a single mechanical element |
50 |
| 175/122 |
With means to feed drive |
80 |
| 175/135 |
With above-ground means to impact an earth-penetrating means |
52 |
| 175/161 |
With above-ground means to move tool to a dumping location offset from bore |
18 |
| 175/162 |
With above-ground means to feed tool |
153 |
| 175/17 |
With heating or cooling (1) within the bore, or (2) drilling fluid |
40 |
| 175/170 |
With tool drive prime mover or above-ground mechanical motion converting drive means |
66 |
| 175/18 |
Ice boring |
41 |
| 175/19 |
Boring without earth removal (i.e., compacting earth formation) |
227 |
| 175/2 |
Boring with explosion in inaccessible hole |
27 |
| 175/202 |
Above-ground means for relatively moving below-ground tool elements |
32 |
| 175/203 |
With above-ground means to advance or retract boring means |
135 |
| 175/205 |
With means providing pressurized gas contact with drilling liquid |
15 |
| 175/206 |
With above-ground means for preparing or separating drilling fluid constituents |
208 |
| 175/207 |
With above-ground means for handling drilling fluid or cutting |
117 |
| 175/219 |
With particular accommodation for personnel (e.g., seat or protector) |
45 |
| 175/220 |
With above-ground guide for relatively advancing tool |
94 |
| 175/226 |
With sample covering or coating means (1) dispensed into sample receiver, or (2) fluent |
28 |
| 175/227 |
With storage means for bit lubricant carried by bit or shaft |
54 |
| 175/230 |
With expansible bore wall anchor (e.g., packer) |
64 |
| 175/231 |
With means movable relative to tool below ground to control eccentric fluid emission |
15 |
| 175/232 |
With means movable relative to tool below ground to stop flow toward bore bottom |
23 |
| 175/24 |
Automatic control |
105 |
| 175/244 |
With means movable relative to tool to receive, retain, or sever undisturbed core |
34 |
| 175/256 |
With releasable means normally holding jointed shaft sections in angular relation |
35 |
| 175/257 |
Tool removable or insertable through or around driving or driven shaft or casing |
54 |
| 175/263 |
Cutter element laterally shiftable below ground (e.g., expansible) |
30 |
| 175/293 |
Below-ground (1) hammer, or (2) impact members |
43 |
| 175/307 |
With cutting edge cover |
7 |
| 175/308 |
With receptacle |
20 |
| 175/313 |
With mechanical cleaner for bit or cutter element |
24 |
| 175/314 |
With well-type screen |
28 |
| 175/315 |
Combined |
23 |
| 175/316 |
With relatively movable parts to facilitate cleaning without disassembly |
8 |
| 175/317 |
With means movable relative to tool or shaft to control below-ground passage |
96 |
| 175/319 |
Below-ground mechanical motion converting means relatively moving plural cutting edges |
12 |
| 175/320 |
With tool shaft detail |
379 |
| 175/327 |
Bit or bit element |
18 |
| 175/39 |
With bit wear signal generating |
66 |
| 175/40 |
With signaling, indicating, testing or measuring |
542 |
| 175/423 |
Wedging slip assembly for supporting a pipe or rod |
74 |
| 175/424 |
Miscellaneous (e.g., earth-boring nozzle) |
218 |
| 175/5 |
Boring a submerged formation |
143 |
| 175/51 |
With self-acting cyclic advance and retraction of tool or tool shaft |
40 |
| 175/52 |
With magazine for successively moving unconnected, oriented tool or shaft sections to use position |
156 |
| 175/53 |
Enlargement of existing pilot throughbore requiring accessibility to existing opposite bore ends to insert and remove tool |
165 |
| 175/54 |
Boring by below ground recirculation of unsupported elements (e.g., shot) |
7 |
| 175/55 |
Tool actuation by reaction of rotating eccentric mass |
53 |
| 175/56 |
Natural vibration characteristic of an element of boring means related (1) to natural vibration characteristic of another element, or (2) to frequency of an imposed motion |
96 |
| 175/57 |
Processes |
410 |
| 175/73 |
Means traveling with tool to constrain tool to bore along curved path |
335 |
| 175/77 |
Side wall tool fed laterally without rotation from inaccessible hole |
29 |
| 175/78 |
Means carried by housing insertable in inaccessible hole to advance side wall tool laterally |
61 |
| 175/79 |
Tool shaft advanced relative to guide insertable in inaccessible hole to change direction of advance |
42 |
| 175/84 |
With above-ground cleaner for boring means |
42 |
| 175/85 |
With orienting or racking means for unconnected tools or sections of shaft or casing |
289 |
| 175/86 |
With below-ground personal accommodation |
12 |
| 175/87 |
Convertible |
13 |
| 175/88 |
With means carrying cuttings laterally of bore axis comprising (1) chute, (2) conveyer, or (3) vehicle |
24 |
| 175/89 |
Tool element or continuously driven flexible or articulated endless member |
10 |
| 175/91 |
Boring means including a continuously rotating bit describing a noncircular cross-sectional bore |
30 |
| 175/92 |
With below-ground tool drive prime mover |
62 |
