Boring Or Penetrating The Earth Patents (Class 175)
- Severing formed core by explosion (Class 175/3)
- Explosive charge carried by projectile (Class 175/3.5)
- Driving core receiver by explosion or with receptacle collecting material in bore (Class 175/4)
- Directing successive projectiles or charges in same path (Class 175/4.5)
- With position orienting or indicating (Class 175/4.51)
- With wall engaging packer or anchor (Class 175/4.52)
- Firing chamber movable in bore relative to carrier or another firing chamber (Class 175/4.53)
- With bore condition firing control, or compensating means (Class 175/4.54)
- Independent firing of plural charges (Class 175/4.55)
- Firing control mechanically actuated in bore (Class 175/4.56)
- Projectile forms bore (Class 175/4.57)
- Concave-shaped charge (Class 175/4.6)
- Boring with underwater tool drive prime mover (Class 175/6)
- Boring from floating support with submerged independent anchored guide base (Class 175/7)
- Boring from submerged buoyant support (Class 175/8)
- Boring from nonbuoyant support (Class 175/9)
- Boring with submersible vertically movable guide (Class 175/10)
- Ray energy detection or measuring (Class 175/41)
- Indicating agent released in drilling fluid (Class 175/42)
- Providing identifiable indication of core position in situ for core sample orientation (Class 175/44)
- Tool position direction or inclination measuring or indicating within the bore (Class 175/45)
- Signaling or indicating condition of cutting in cuttings retainer (Class 175/46)
- Measuring or indicating drilling fluid (1) pressure, or (2) rate of flow (Class 175/48)
- Transparent inspection feature (Class 175/49)
- Indicating, testing or measuring a condition of the formation (Class 175/50)
- Below-ground (1) generation of motive fluid, or (2) storage of motivating energy (Class 175/93)
- With below-ground feed means (Class 175/94)
- Plural below-ground drive prime movers (Class 175/95)
- With means to anchor prime movers support to bore wall (Class 175/97)
- Discharge passage for motive fluid directed toward bore entrance (Class 175/100)
- With positive connection between tool and support shaft for rotary below ground motor (Class 175/101)
- With below-ground conveyer or impeller for removal of cuttings (Class 175/102)
- With above-ground means (Class 175/103)
- Electric (Class 175/104)
- With mechanical motion-converting means (Class 175/106)
- Fluid rotary type (Class 175/107)
With tool drive prime mover or above-ground mechanical motion converting drive means (Class 175/170)
- Fluid spray (Class 175/208)
- Fluid or cuttings directing or receiving means engaging bore entrance (Class 175/209)
- Pressurized gas supply (Class 175/212)
- With suction pump inlet communicating with bore bottom (Class 175/213)
- Fluid head on tool shaft having lateral port and axial passage with seal for means reciprocable in the head (Class 175/214)
- With tool shaft having plural passages for drilling fluid (Class 175/215)
- Standpipe (Class 175/216)
- With pump (Class 175/217)
- With valve (Class 175/218)
With means movable relative to tool below ground to control eccentric fluid emission (Class 175/231)
- Movable to seal sample receiver at bore bottom pressure (Class 175/233)
- With longitudinally spaced valve seats (Class 175/234)
- In sample receiver removable through below-ground tool shaft (Class 175/236)
- Means comprises dropped element (Class 175/237)
- Flow-stopping means includes relatively movable cutter element (Class 175/238)
- With undisturbed core receiver (Class 175/239)
- Stops flow by movement about fixed pivot (Class 175/241)
- Resiliently biased or composed of flexible material (Class 175/243)
- With separable means holding tool collapsed above ground only (Class 175/264)
- Plural cutter elements longitudinally relative movable into transverse alignment (Class 175/265)
- Plural selectively shiftable cutter elements (Class 175/266)
- With latch operated by fluid pressure or dropped element (Class 175/271)
- Cutter element shifted by fluid pressure (Class 175/267)
- Cutter element shifted by dropped element (Class 175/270)
- Cutter element shifted by relatively longitudinally movable threaded elements (Class 175/272)
- Cutter element shifted by cam or gear axially rotatable relative to shaft (Class 175/273)
- With shifting mechanism spring biased to operative position (Class 175/274)
- Cutter element shifted by longitudinally relatively movable parts (Class 175/284)
- With latch (Class 175/290)
- Spring biased (Class 175/291)
- Pivoted about substantially longitudinal axis (Class 175/292)
- Combined with safety joint (Class 175/294)
- With noncutting portion forwardly of sleeve impact member having a cutting portion (e.g., reamer) (Class 175/295)
- Fluid-operated (Class 175/296)
- Continuous unidirectional rotary motion of one telescoping member effects consecutive impacts (Class 175/298)
- Resiliently biased (Class 175/299)
- With releasable means to detachably retain telescoping members against axial reciprocation (Class 175/300)
- Telescoping members relatively rotatable (Class 175/305)
- Rolling cutter bit or rolling cutter bit element (Class 175/331)
- Cutting edge self-renewable during operation (Class 175/379)
- Unsupported abrading particle type (e.g., shot) (Class 175/380)
- Cutting edges relatively longitudinally movable during operation (Class 175/381)
- Adjustable cutter element (Class 175/382)
- Bit with leading portion (e.g., pilot) forming smaller diameter initial bore (Class 175/385)
- With fluid conduit lining or element (e.g., slush tube) (Class 175/393)
- With helical-conveying portion (Class 175/394)
- Axially parallel side wall with transverse cuttings retaining portion (Class 175/396)
- Forked rotary nontracking (Class 175/397)
- Nonsymmetrical bit (Class 175/398)
- Cutting edges facing in opposite axial directions (Class 175/401)
- Casing shoe type (Class 175/402)
- Core forming type (Class 175/403)
- Noncutting portion forwardly of cutting portion (e.g., reamer) (Class 175/406)
- With bit guide or bore wall compacting device (Class 175/408)
- Plural separable cutter elements (Class 175/412)
- Impact or percussion type (Class 175/414)
- Symmetrical forked rotary type (e.g., fishtail) (Class 175/421)
- Magnetized or with magnet (Class 175/328)
- Specific or diverse material (Class 175/425)