US20160032656A1 - Fluted wing auger - Google Patents
Fluted wing auger Download PDFInfo
- Publication number
- US20160032656A1 US20160032656A1 US14/751,734 US201514751734A US2016032656A1 US 20160032656 A1 US20160032656 A1 US 20160032656A1 US 201514751734 A US201514751734 A US 201514751734A US 2016032656 A1 US2016032656 A1 US 2016032656A1
- Authority
- US
- United States
- Prior art keywords
- core
- auger
- wings
- axis
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
Definitions
- the present invention relates to augers, sometimes referred to as drill bits.
- An auger is a drilling device that typically includes a helical blade for conveying cuttings upwards out of a bore hole due to rotation about a longitudinal axis of the auger.
- an auger includes a substantially conical core having an axis and a side centered about the axis. From a substantially flat, substantially circular base of the core at a trailing end of the core, the side tapers to form a diameter smaller than that of the base and centered on the axis at a leading end of the core.
- a shank is centered about the axis and fixed to the base for connecting the auger to a collar.
- At least two wings are fixed to the core.
- the base of the core is perpendicular to the axis and is circular, and the wings extend radially from the circular base and along the tapered side of the core to at least the leading end of the core.
- the wings are configured such that they wind at least partly around the core axis on the tapered side of the core.
- each wing traverses one-quarter turn helically around the core axis.
- the at least two wings each project out radially from the core at substantially equal radial wing widths extending along at least a portion of the tapered side of the core.
- the at least two wings are tapered in radial width proximal to the leading end of the core, such that each wing forms a leading-end point for earth penetration distal to the core base.
- the at least two wings extend longitudinally beyond the tapered side and the leading end of the core.
- the at least two wings begin tapering in radial width where they extend longitudinally beyond the tapered side and the leading end of the core.
- leading end of the core and the points of the at least two wings define a chevron shape.
- the smaller diameter is a vertex.
- walls of the respective at least two wings have engaging sides facing in a direction for rotation of the auger when digging, wherein the engaging sides are cupped to provide flutes for directing matter cut away by the rotation to transfer cuttings upward during the rotation.
- the circular base has a diameter substantially equal to a diameter of a collar to which the auger connects for attaching the auger to a drill stem 26 .
- FIG. 1 provides a view of an auger, according to embodiments of the present invention, from above a trailing end of the auger.
- FIG. 2 provides a side profile view of the auger of FIG. 1 , according to embodiments of the present invention.
- FIG. 3 provides a view of the auger of FIG. 1 from above the trailing end, once again, but with shading and annotations pointing out certain features and proportions, according to embodiments of the present invention.
- FIG. 4 provides a view of the auger of FIG. 1 with shading and rotated to a position for better visibility of certain additional features, according to embodiments of the present invention.
- auger 1 is shown in side profile, which illustrates a substantially cone-shaped, inner core 3 of the auger having a shank 27 fixed at cone axis 5 of core 3 to a substantially flat base 24 , which is perpendicular to axis 5 on trailing end 25 of core 3 .
- auger 1 has two fixed wings 9 and 15 , which extend radially along the tapered side 4 of cone-shaped core 3 to an earth-penetrating, leading end 21 of core 3 , which opposes the trailing end 25 .
- auger 1 is a single casting, so that wings 9 and 15 are integral with core 3 .
- Leading end 21 of core 3 is a vertex of the conical shape of core 3 , i.e., is pointed (or at least substantially smaller in diameter than that of base 24 ), wherein the point (or diameter center) is located on axis 5 , according to embodiments of the present invention. Likewise, the diameter of circular base 24 is centered about axis 5 . See also FIG. 1 .
- FIG. 1 which provides a trailing end 25 (also known as “shank end”) view of auger 1 of FIG. 2 as viewed from above a bore hole of approximately nine inches in overall diameter 40 , according to embodiments of the present invention.
- auger 1 would be held in the bore hole by a collar 29 and drill stem 26 , which are shown in dashed lines in FIG. 2 , but not shown in FIG. 1 , so that details of auger 1 may be better illustrated.
- base 24 is substantially circular and is six inches in diameter, except for wings 9 and 15 , where the circular diameter is centered on axis 5 .
- base 24 matches a six inch outer diameter of a cylindrical bit collar 29 (shown with dashed lines in FIG. 2 ) to which shank 27 attaches, via a bolt 28 through a hole formed by shank 27 , where the through-hole runs perpendicular to, and intersects, axis 5 .
- wings 9 and 15 wind around axis 5 on tapered side 4 of conical core 3 . More specifically, according to one or more embodiments of the present invention, wings 9 and 15 form a conical helix around core 3 in such a manner that from the edge of base 24 on trailing end 25 to leading end 21 , wings 9 and 15 each traverse ninety degrees relative to the circumference of base 24 . That is, each wing 9 and 15 makes one-quarter turn helically around axis 5 of conical core 3 .
- wings 9 and 15 each project out radially relative to axis 5 at substantially equal widths beginning at trailing end 25 , where the circular top of core 3 forms base 24 .
- top 9 T of wing 9 and top 15 T of wing 15 each project out one and one-half inches radially from base 24 .
- the total cutting diameter of augur 1 is nine inches, including wings 9 and 15 , since the diameter of base 24 is six inches, excluding wings 9 and 15 , and since each wing adds one and one-half inches radially. See overall diameter 40 and base diameter 24 as shown in FIG. 1 , which are nine inches and six inches respectively for example.
- wings 9 and 15 continue axially from base 24 at substantially constant radial widths along tapered side 4 of conical core 3 .
- widths of wings 9 and 15 remain constant until they reach the pointed, or substantially pointed, leading end 21 of core 3 , whereupon wings 9 and 15 extend longitudinally, i.e., in the direction of axis 5 , beyond side 4 and leading end 21 of core 3 , and wings 9 and 15 themselves taper in radial width as they extend therebeyond, such that wings 9 and 15 form respective points 18 and 20 and such that leading end 21 and points 18 and 20 form a chevron.
- the diameter of auger 1 is only about 3 inches, due entirely to the radial widths of wings 9 and 15 , or at least substantially entirely due thereto.
- outer edge 10 of wing 9 which is a cutting edge, tapers toward axis 5 beginning at leading end 21
- inner edge of wing 9 i.e., the axial projection of core-wing intersection 6
- Wing 15 likewise tapers to form a point 20 in similar fashion, so that in the orientation for digging depicted in FIG. 2 , the point of core 3 leading end 21 , the points 18 and 20 of respective wings 9 and 15 , and penetrating end surfaces of wings 9 and 15 there between form a chevron shape.
- the length of auger 1 along axis 5 is also nine inches from the tips of points 18 and 20 to base 24 .
- points 18 and 20 project 11 ⁇ 2 inch beyond leading end 21 of core 3 .
- engaging sides 32 and 34 of respective wings 9 and 15 face in the direction of rotation of auger 1 (clockwise when viewed from above trailing end 25 as in FIG. 3 ) and engage matter that is cut away by rotation of external, cutting edges 10 and 16 of wings 9 and 15 , respectively.
- Engaging sides 32 and 34 are cupped, as shown, which provides respective flutes internal to wings 9 and 15 for directing matter cut away by rotation of the auger 1 to transfer upward during the rotation.
- each wing 9 and 15 forms a respective flute on the side of each wing 9 and 15 that faces the direction of rotation and that initially engages the earth in a cutting and transfer action, i.e., engaging sides 32 and 34 .
- a flute 36 of wing 9 engaging side 32 shown in FIG. 4 See, for example flute 36 of wing 9 engaging side 32 shown in FIG. 4 .
- each flute such as flute 36 ( FIG. 4 ) More specifically, according to one or more embodiments of the present invention, each flute, such as flute 36 ( FIG.
- wing 9 which has the same configuration as wing 9 .
- wings 9 and 15 spiral in conical helix fashion on conical core 3 , according to embodiments of the present invention, rather than forming a circular helix on a cylindrical core. This feature of embodiments of the present invention also tends to reduce rotational and longitudinal drag.
- each back wall flute is somewhat larger than the radius of each flute of the engaging sides 32 and 34 , e.g., larger than the radius of flute 36 in engaging side 32 of wing 9 .
- the size of auger 1 may vary, but certain proportions remain substantially fixed, in order to maintain the same advantages described herein above regardless of size.
- the diameter of base 24 may be smaller or larger, and the wing-width, i.e., the distance by which wings 9 and 15 extend radially from core 3 , is smaller or larger in the same 4 to 1 proportion, so that if the diameter of base 24 is 4 inches instead of six inches, for example, the wing-width is 1 inch instead of 11 ⁇ 2 inch.
- the 1 to 1 proportion of the base 24 diameter to overall axial 5 length of auger 1 remains the same. That is, the length from base 24 to points 18 and 20 remains the same as base 24 diameter.
- the radius of flutes in wings 9 and 15 remain fixed in 4 to 1 proportion to the diameter of base 24 .
Abstract
An auger has a substantially conical core, which has an axis and a side centered thereabout. From a substantially flat, substantially circular base of the core at a trailing end of the core, the side tapers to form a diameter smaller than that of the base and on the axis at a leading end of the core. The auger includes a shank centered about the axis and fixed to the base for connecting the auger to a collar and includes at least two wings fixed to the core. The base of the core is perpendicular to the axis and is substantially circular. The wings extend radially from the base and along the tapered side of the core to at least the leading end of the core, wherein the wings are configured such that they wind at least partly around the core axis on the tapered side of the core.
Description
- The present invention relates to augers, sometimes referred to as drill bits. An auger is a drilling device that typically includes a helical blade for conveying cuttings upwards out of a bore hole due to rotation about a longitudinal axis of the auger.
- According to an embodiment of the invention, an auger includes a substantially conical core having an axis and a side centered about the axis. From a substantially flat, substantially circular base of the core at a trailing end of the core, the side tapers to form a diameter smaller than that of the base and centered on the axis at a leading end of the core. A shank is centered about the axis and fixed to the base for connecting the auger to a collar. At least two wings are fixed to the core. The base of the core is perpendicular to the axis and is circular, and the wings extend radially from the circular base and along the tapered side of the core to at least the leading end of the core. The wings are configured such that they wind at least partly around the core axis on the tapered side of the core.
- In a further aspect, each wing traverses one-quarter turn helically around the core axis.
- In another aspect, the at least two wings each project out radially from the core at substantially equal radial wing widths extending along at least a portion of the tapered side of the core.
- In a further aspect, the at least two wings are tapered in radial width proximal to the leading end of the core, such that each wing forms a leading-end point for earth penetration distal to the core base.
- In another aspect, the at least two wings extend longitudinally beyond the tapered side and the leading end of the core.
- In a further aspect, the at least two wings begin tapering in radial width where they extend longitudinally beyond the tapered side and the leading end of the core.
- In another aspect, the leading end of the core and the points of the at least two wings define a chevron shape.
- In a further aspect, the smaller diameter is a vertex.
- In another aspect, walls of the respective at least two wings have engaging sides facing in a direction for rotation of the auger when digging, wherein the engaging sides are cupped to provide flutes for directing matter cut away by the rotation to transfer cuttings upward during the rotation.
- In a further aspect, the circular base has a diameter substantially equal to a diameter of a collar to which the auger connects for attaching the auger to a
drill stem 26. - Novel features believed characteristic of the invention are set forth in the appended claims. The invention itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of one or more illustrative embodiments when read in conjunction with the accompanying drawings, wherein:
-
FIG. 1 provides a view of an auger, according to embodiments of the present invention, from above a trailing end of the auger. -
FIG. 2 provides a side profile view of the auger ofFIG. 1 , according to embodiments of the present invention. -
FIG. 3 provides a view of the auger ofFIG. 1 from above the trailing end, once again, but with shading and annotations pointing out certain features and proportions, according to embodiments of the present invention. -
FIG. 4 provides a view of the auger ofFIG. 1 with shading and rotated to a position for better visibility of certain additional features, according to embodiments of the present invention. - Referring first to
FIG. 2 ,auger 1 is shown in side profile, which illustrates a substantially cone-shaped,inner core 3 of the auger having ashank 27 fixed atcone axis 5 ofcore 3 to a substantiallyflat base 24, which is perpendicular toaxis 5 ontrailing end 25 ofcore 3. InFIG. 2 it may also be seen thatauger 1 has twofixed wings tapered side 4 of cone-shaped core 3 to an earth-penetrating, leadingend 21 ofcore 3, which opposes thetrailing end 25. According to one or more embodiments of the present invention,auger 1 is a single casting, so thatwings core 3. Leadingend 21 ofcore 3 is a vertex of the conical shape ofcore 3, i.e., is pointed (or at least substantially smaller in diameter than that of base 24), wherein the point (or diameter center) is located onaxis 5, according to embodiments of the present invention. Likewise, the diameter ofcircular base 24 is centered aboutaxis 5. See alsoFIG. 1 . - Referring now also to
FIG. 1 , which provides a trailing end 25 (also known as “shank end”) view ofauger 1 ofFIG. 2 as viewed from above a bore hole of approximately nine inches in overall diameter 40, according to embodiments of the present invention. It will be understood, of course, that inactual practice auger 1 would be held in the bore hole by acollar 29 anddrill stem 26, which are shown in dashed lines inFIG. 2 , but not shown inFIG. 1 , so that details ofauger 1 may be better illustrated. In one or more embodiments of the present invention,base 24 is substantially circular and is six inches in diameter, except forwings axis 5. Thus,base 24 matches a six inch outer diameter of a cylindrical bit collar 29 (shown with dashed lines inFIG. 2 ) to whichshank 27 attaches, via abolt 28 through a hole formed byshank 27, where the through-hole runs perpendicular to, and intersects,axis 5. - Particularly noting
outer edge 10 and wing-core intersection 6 on the side ofwing 9 that is visible inFIG. 2 , it may be seen thatwings axis 5 ontapered side 4 ofconical core 3. More specifically, according to one or more embodiments of the present invention,wings core 3 in such a manner that from the edge ofbase 24 on trailingend 25 to leadingend 21,wings base 24. That is, eachwing axis 5 ofconical core 3. - According to embodiments of the present invention,
wings axis 5 at substantially equal widths beginning at trailingend 25, where the circular top ofcore 3forms base 24. In one or more embodiments, top 9T ofwing 9 and top 15T ofwing 15 each project out one and one-half inches radially frombase 24. Accordingly, in the embodiment illustrated inFIG. 1 the total cutting diameter ofaugur 1 is nine inches, includingwings base 24 is six inches, excludingwings base diameter 24 as shown inFIG. 1 , which are nine inches and six inches respectively for example. - As shown in
FIG. 2 ,wings base 24 at substantially constant radial widths alongtapered side 4 ofconical core 3. In the illustrated embodiment, widths ofwings end 21 ofcore 3, whereuponwings axis 5, beyondside 4 and leadingend 21 ofcore 3, andwings wings respective points end 21 andpoints end 21 ofcore 3, the diameter ofauger 1 is only about 3 inches, due entirely to the radial widths ofwings - More specifically, as may be seen regarding
wing 9 inFIG. 2 ,outer edge 10 ofwing 9, which is a cutting edge, tapers towardaxis 5 beginning at leadingend 21, whereas inner edge ofwing 9, i.e., the axial projection of core-wing intersection 6, tapers away fromaxis 5 to form apoint 18 at approximately the midpoint of the maximum 1½ inch width ofwing 9.Wing 15 likewise tapers to form apoint 20 in similar fashion, so that in the orientation for digging depicted inFIG. 2 , the point ofcore 3 leadingend 21, thepoints respective wings wings auger 1 is nine inches, the length ofauger 1 alongaxis 5 is also nine inches from the tips ofpoints base 24. According to one or more such embodiments of the present invention as described herein above,points end 21 ofcore 3. - Referring now also to
FIG. 3 , engagingsides respective wings end 25 as inFIG. 3 ) and engage matter that is cut away by rotation of external,cutting edges wings sides wings auger 1 to transfer upward during the rotation. That is, within the 1½ wing-width of eachengaging side core 3, eachwing wing sides example flute 36 ofwing 9engaging side 32 shown inFIG. 4 . (Such aflute 36 internal towing 9 is not to be confused with a flute that could be formed between respective wings or between multiple turns of one wing in a different auger configuration.) More specifically, according to one or more embodiments of the present invention, each flute, such as flute 36 (FIG. 4 ), has a radius of one and one-half inches and traverses an arc of ninety degrees, such as shown forwing 9 engaging side 32 (FIG. 3 ), according to one or more embodiments of the present invention. Inclusion of flutes of this shape intransfer sides respective wings flute 36 shown, provide sharper cutting edges at the external edges ofwings edge 10 whereengaging side 32 ofwing 9 meetsside 11, for example. Also, the flutes, such asflute 36 explicitly shown, produce better lift and transfer of excavated material up the bore hole produced by rotation ofaugur 1. Also, angle A (as shown inFIG. 4 ) betweenengaging side 32 andside 11 ofwing 9 is an acute angle, according to embodiments of the present invention. The acute angle A reduces contact ofside 11 ofwing 9 and with matter of the side of the 9 inch diameter bore hole resulting from axial rotation and downward earth penetration ofaugur 1 as shown from above inFIG. 1 and, hence, reduces rotational and transverse drag. The same applies forwing 15, which has the same configuration aswing 9. As previously mentioned,wings conical core 3, according to embodiments of the present invention, rather than forming a circular helix on a cylindrical core. This feature of embodiments of the present invention also tends to reduce rotational and longitudinal drag. - For
respective wings sides wings engaging sides flute 36 inengaging side 32 ofwing 9. - According to other embodiments of the present invention, the size of
auger 1 may vary, but certain proportions remain substantially fixed, in order to maintain the same advantages described herein above regardless of size. For example, according to one or more embodiments of the present invention, the diameter ofbase 24 may be smaller or larger, and the wing-width, i.e., the distance by whichwings core 3, is smaller or larger in the same 4 to 1 proportion, so that if the diameter ofbase 24 is 4 inches instead of six inches, for example, the wing-width is 1 inch instead of 1½ inch. Likewise, the 1 to 1 proportion of the base 24 diameter to overall axial 5 length ofauger 1 remains the same. That is, the length frombase 24 topoints base 24 diameter. Likewise, the radius of flutes inwings base 24. - The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the inclusion of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, no element described herein is required for the practice of the invention unless expressly described as essential or critical.
- The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed.
- It should be appreciated that the particular implementations shown and described herein are illustrative of the invention and its best mode and are not intended to otherwise limit the scope of the present invention in any way. Other variations are within the scope of the following claims. Those skilled in the art having read this disclosure will recognize that changes and modifications may be made to the embodiments without departing from the scope of the present invention.
- While this specification contains many specifics, these should not be construed as limitations on the scope of the invention or of what can be claimed, but rather as descriptions of features specific to particular implementations of the invention. Certain features that are described in this specification in the context of separate implementations can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable sub combination. Moreover, although features can be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination can be directed to a subcombination or variation of a subcombination.
- Benefits, advantages and solutions to problems have been described above with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as critical, required, or essential features or elements of any or all the claims.
Claims (20)
1. An auger comprising:
a substantially conical core having an axis and a side centered about the axis, wherein from a substantially flat, substantially circular base of the core at a trailing end of the core, the side tapers to form a diameter smaller than that of the base and centered on the axis at a leading end of the core;
a shank centered about the axis and fixed to the base for connecting the auger to a collar;
at least two wings fixed to the core, wherein the base of the core is perpendicular to the axis and is circular and the wings extend radially from the circular base and along the tapered side of the core to at least the leading end of the core, wherein the wings are configured such that they wind at least partly around the core axis on the tapered side of the core.
2. The auger of claim 1 , wherein each wing traverses one-quarter turn helically around the core axis.
3. The auger of claim 1 , wherein the at least two wings each project out radially from the core at substantially equal radial wing widths extending along at least a portion of the tapered side of the core.
4. The auger of claim 1 , wherein the at least two wings are tapered in radial width proximal to the leading end of the core, such that each wing forms a leading-end point for earth penetration distal to the core base.
5. The auger of claim 1 , wherein the at least two wings extend longitudinally beyond the tapered side and the leading end of the core.
6. The auger of claim 5 , wherein the at least two wings begin tapering in radial width where they extend longitudinally beyond the tapered side and the leading end of the core.
7. The auger of claim 4 , wherein the leading end of the core and the points of the at least two wings define a chevron shape.
8. The auger of claim 1 , wherein the smaller diameter is a vertex.
9. The auger of claim 1 , wherein walls of the respective at least two wings have engaging sides facing in a direction for rotation of the auger when digging, wherein the engaging sides are cupped to provide flutes for directing matter cut away by the rotation to transfer cuttings upward during the rotation.
10. The auger of claim 1 , wherein the circular base has a diameter substantially equal to a diameter of a collar to which the auger connects for attaching the auger to a drill stem.
11. An auger comprising:
a substantially conical core having an axis and a side centered about the axis, wherein from a substantially flat, circular base of the core at a trailing end of the core the side tapers to form a diameter smaller than that of the base and centered on the axis at a leading end of the core;
a shank centered about the axis and fixed to the base for connecting the auger to a collar;
at least two wings fixed to the core, wherein the base of the core is perpendicular to the axis and is circular and the wings extend radially from the circular base and along the tapered side of the core to at least the leading end of the core, wherein the wings are configured such that they wind at least partly around the core axis on the tapered side of the core.
12. The auger of claim 11 , wherein each wing traverses one-quarter turn helically around the core axis.
13. The auger of claim 12 , wherein the at least two wings each project out radially from the core at substantially equal radial wing widths extending along at least a portion of the tapered side of the core.
14. The auger of claim 13 , wherein the at least two wings are tapered in radial width proximal to the leading end of the core, such that each wing forms a leading-end point for earth penetration distal to the core base.
15. The auger of claim 14 , wherein the at least two wings extend longitudinally beyond the tapered side and the leading end of the core.
16. The auger of claim 15 , wherein the at least two wings begin tapering in radial width where they extend longitudinally beyond the tapered side and the leading end of the core.
17. The auger of claim 16 , wherein the leading end of the core and the points of the at least two wings define a chevron shape.
18. The auger of claim 17 , wherein walls of the respective at least two wings have engaging sides facing in a direction for rotation of the auger when digging, wherein the engaging sides are cupped to provide flutes for directing matter cut away by the rotation to transfer cuttings upward during the rotation.
19. The auger of claim 18 , wherein the smaller diameter is a vertex.
20. The auger of claim 19 , wherein the circular base has a diameter substantially equal to a diameter of a collar to which the auger connects for attaching the auger to a drill stem.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/751,734 US20160032656A1 (en) | 2014-07-31 | 2015-06-26 | Fluted wing auger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462031586P | 2014-07-31 | 2014-07-31 | |
US14/751,734 US20160032656A1 (en) | 2014-07-31 | 2015-06-26 | Fluted wing auger |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160032656A1 true US20160032656A1 (en) | 2016-02-04 |
Family
ID=55179505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/751,734 Abandoned US20160032656A1 (en) | 2014-07-31 | 2015-06-26 | Fluted wing auger |
Country Status (1)
Country | Link |
---|---|
US (1) | US20160032656A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106567678A (en) * | 2016-03-26 | 2017-04-19 | 邓君 | Safe and efficient anti-skid drill bit used for air-leg rock drill |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2639122A (en) * | 1949-11-01 | 1953-05-19 | Gerald A Petersen | Pilot bit for earth augers |
US2773673A (en) * | 1954-03-04 | 1956-12-11 | Petersen Gerald Alger Monroe | Pilot bit |
US3736996A (en) * | 1971-08-28 | 1973-06-05 | Pengo Corp | Pilot bit with reinforcing ribs |
US20110229272A1 (en) * | 2009-09-17 | 2011-09-22 | Mike Lindsay | Drill tip for foundation pile |
-
2015
- 2015-06-26 US US14/751,734 patent/US20160032656A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2639122A (en) * | 1949-11-01 | 1953-05-19 | Gerald A Petersen | Pilot bit for earth augers |
US2773673A (en) * | 1954-03-04 | 1956-12-11 | Petersen Gerald Alger Monroe | Pilot bit |
US3736996A (en) * | 1971-08-28 | 1973-06-05 | Pengo Corp | Pilot bit with reinforcing ribs |
US20110229272A1 (en) * | 2009-09-17 | 2011-09-22 | Mike Lindsay | Drill tip for foundation pile |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106567678A (en) * | 2016-03-26 | 2017-04-19 | 邓君 | Safe and efficient anti-skid drill bit used for air-leg rock drill |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102185031B1 (en) | Twist drill | |
AU2014268137B2 (en) | Bent blade screw ground anchor | |
US20120195704A1 (en) | Drill bit | |
AU2011229160B2 (en) | Drill bit | |
WO2015026955A4 (en) | Precessional drilling and reaming | |
US20160256937A1 (en) | Rotary tool and method for producing a rotary tool | |
US9297209B1 (en) | Bidirectional stabilizer | |
US20220032492A1 (en) | Auger | |
US20160032656A1 (en) | Fluted wing auger | |
US11638960B2 (en) | Flat drill bit | |
US11566473B2 (en) | Horizontal directional reaming | |
US10502001B2 (en) | Earth-boring tools carrying formation-engaging structures | |
US2602639A (en) | Rock drill bit | |
CN102011553A (en) | Double-helix drill bit of rotary drilling rig | |
US1571348A (en) | Drill bit | |
CN105672886A (en) | Reaming tool and methods of using the reaming tool in a wellbore | |
MX2021006139A (en) | Drill bit for boring earth and other hard materials. | |
CN208203134U (en) | A kind of counter-rotation type drill bit | |
US9784038B2 (en) | High-productivity drill bits | |
US2592440A (en) | Rock drilling tool | |
CN108150106A (en) | A kind of drill bit of adjustable dimension | |
CN207223009U (en) | A kind of new drill | |
US20150226008A1 (en) | One piece reamer for use in boring operations of gas and oil mining | |
US20180347284A1 (en) | Two Part Drill Bit Assembly | |
US20190184473A1 (en) | Metal drill |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BELLTEC INDUSTRIES, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FROST, ROBERT L.;REEL/FRAME:035915/0190 Effective date: 20150624 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |