US2958349A - Curved extension drill - Google Patents

Curved extension drill Download PDF

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Publication number
US2958349A
US2958349A US680041A US68004157A US2958349A US 2958349 A US2958349 A US 2958349A US 680041 A US680041 A US 680041A US 68004157 A US68004157 A US 68004157A US 2958349 A US2958349 A US 2958349A
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Prior art keywords
tube
drill
shaft
bit
sleeve
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Expired - Lifetime
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US680041A
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Ralph L Mcnutt
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/003—Attachments
    • B23B45/005—Flexible shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/003—Attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/045—Angle drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C3/00—Drilling machines or drilling devices; Equipment therefor
    • B27C3/08—Operator-supported drilling machines or devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/50—Cutting by use of rotating axially moving tool with product handling or receiving means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/65—Means to drive tool
    • Y10T408/665—Universal or flexible drive connection to rotate Tool

Definitions

  • TTORNE Y Unite States This invention relates to boring devices and has reference to a curved extension drill for boring holes in otherwise inaccessible places, such as in plates between inner and outer wall surfaces when installing electrical wiring or plumbing.
  • An object of the invention is to provide an extension drill which requires only ⁇ a relatively small hole in a wall surface for its successful operation.
  • Another object of the invention is to provide guide means for locating the bit of a curved extension drill when the bit end thereof is received between two wall surfaces.
  • a further object of the invention is to provide a curved extension drill having an outer sleeve which is stationary during the drilling operation and whereby the user of the drill may hold the sleeve with one hand for maintaining the direction of the hole being drilled.
  • Figure 'l is a broken vertical sectional view of a wall showing a combined elevational and sectional view of a preferred form of the invention positioned therein preparatory to drilling a hole through a lower wall plate and a subfloor.
  • Figure 2 is an enlarged broken vvertical sectional view of the lower end of the curved extension drill illustrated in Figure 1.
  • Figure 3 is an enlarged vertical sectional View of the upper end of the curved extension drill illustrated in Figure l.
  • the wall shown in Figure 1 includes inner and outer wall surfaces and 11, a lower wall plate 12, a subfloor 13, a sill 14, and a sill plate 15, the latter being mounted on concrete foundation 16.
  • a typical use for the present invention is to drill a hole 17 through the lower wall plate 12 and subfloor 13 for installing electrical wiring which will extend to an electric outlet box, not shown, in an opening 18 in the inner wall 10.
  • the size of the opening 18 is only slightly larger than the outlet box to be installed.
  • the form of the invention shown includes a tubular outer sleeve 19 which is bent, as at a, intermediate its ends, a bit 20 within its lower straight portion, an inner sleeve bearing 21 slidably mounted in the upper straight portion, and a ilexible shaft 22 connecting the bit and the slidable bearing.
  • the straight portions of the sleeve 19 deiine an included angle of approximately 135
  • the lower end of the outer sleeve 19 is notched, as at 23, for chip clearance.
  • the bit shank 24 is rotatably and slidably received in a bearing 25 located in the lower end of the sleeve 19 immediately above the recess 23.
  • the bearing 25 is detachably secured in place by means of a set screw 26 threadedly engaged in and extending through the sleeve 19 and into a recess 27 in the side of the bearing 25.
  • the shank 24 of the bit 20 is connected with the lower end of the flexible shaft 22 by means of a set screw 28 threadedly positioned through "arent the side of a tubular adapter 29, the outside diameter of said adapter being slightly less than the inside diameter of said sleeve, and which set screw extends into a recess 30 in the upper end of said bit shank which is slidably received within said tubular adapter.
  • the set screw 28 is accessible through an opening 31 in the side of the sleeve 22.
  • the upper end of the ilexible shaft 22 is connected with la straight shaft 32 which extends through and is rotatable in the slidable bearing sleeve 21.
  • the connection between the exible shaft 22 and the straight shaft 32 is by means of an adapter 33 of a construction like that described in connection with adapter 29.
  • the upper end of the slidable sleeve bearing 21 is shouldered, as at 34, to limit the downward movement of the outer sleeve 1.9.
  • the upper extending end of the shaft 32 is engaged in the chuck 35 of an electric hand drill 36.
  • a collar 37 is mounted on the extending end of the shaft 32 immediately above the sleeve shoulder 34, and which collar is held in place by means of a set screw 38.
  • the bit end of the described extension drill is inserted through the opening 18 in the inner Wall 10 and placed on the surface of the plate 12 to be drilled.
  • the inner sleeve bearing 21 is outwardly extended, and at which time the outer sleeve 19 is manually held in operating position.
  • Pressure is applied to the hand drill 36 as the bit 20 drills the hole '17, and at which time the entire inner mechanism of the described extensiou drill, with the exception of the lower bearing 25, moves downwardly to complete the hole. It is pointed out that there is no downward movement of the bent outer sleeve; thus, the opening 18 may be relatively small.
  • a portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved thereabove, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a exible shaft within said tube, a wood bit having a shank, said bit being adapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said llexible shaft with the shank of said bit, the outside dia meter of said connector being of a size to rotate and slidably engage the lower end of said tube, a rigid shaft connected with the upper end of said iexible shaft and extending outwardly of the upper end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and means within said tube limiting the longitudinal movement of said drilling assembly in said tube.
  • a portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved thereabove, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a tlexible shaft within said tube, a wood bit having a shank, said bit being adapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said flexible shaft with the shank of said bit, the outside diameter of said connector being of a size to rotate and slidably engage the lower end of said tube, a rigid shaft connected with the upper end of said flexible shaft and extending outwardly of the upper end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and bearings mounted in upper rand lower ends of tube, the bearing in the lower end of said tube being at the lower end of the said straight lower end and slidably
  • a portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved between the ends thereof, the upper and lower ends of said tube being disposed at an angle of substantially 135, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a exible shaft within said tube, a wood bit having a shank, said bit being ladapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said exible shaft with the shank of said bit, the outside diameter of said connector being of a size to rotate and slidably engage l the lower end of said tube, a rigid shaft connected with the upper end of said iexible shaft and extending outwardly of the upper ⁇ end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and means within said tube limiting the longitudinal movement of said drilling

Description

Nov. 1, 1960 R. L. MGNUTT cuRvED EXTENSION DRILL Filed Aug. 2s, 1957 RALPH L. Mc/VUTT INVENTOR.
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TTORNE Y Unite States This invention relates to boring devices and has reference to a curved extension drill for boring holes in otherwise inaccessible places, such as in plates between inner and outer wall surfaces when installing electrical wiring or plumbing.
An object of the invention is to provide an extension drill which requires only `a relatively small hole in a wall surface for its successful operation.
Another object of the invention is to provide guide means for locating the bit of a curved extension drill when the bit end thereof is received between two wall surfaces.
A further object of the invention is to provide a curved extension drill having an outer sleeve which is stationary during the drilling operation and whereby the user of the drill may hold the sleeve with one hand for maintaining the direction of the hole being drilled.
These and other objects will become apparent from the following description and acompanying drawing, wherein:
Figure 'l is a broken vertical sectional view of a wall showing a combined elevational and sectional view of a preferred form of the invention positioned therein preparatory to drilling a hole through a lower wall plate and a subfloor.
Figure 2 is an enlarged broken vvertical sectional view of the lower end of the curved extension drill illustrated in Figure 1.
.Figure 3 is an enlarged vertical sectional View of the upper end of the curved extension drill illustrated in Figure l.
The wall shown in Figure 1 includes inner and outer wall surfaces and 11, a lower wall plate 12, a subfloor 13, a sill 14, and a sill plate 15, the latter being mounted on concrete foundation 16. A typical use for the present invention is to drill a hole 17 through the lower wall plate 12 and subfloor 13 for installing electrical wiring which will extend to an electric outlet box, not shown, in an opening 18 in the inner wall 10. The size of the opening 18 is only slightly larger than the outlet box to be installed.
The form of the invention shown includes a tubular outer sleeve 19 which is bent, as at a, intermediate its ends, a bit 20 within its lower straight portion, an inner sleeve bearing 21 slidably mounted in the upper straight portion, and a ilexible shaft 22 connecting the bit and the slidable bearing. The straight portions of the sleeve 19 deiine an included angle of approximately 135 The lower end of the outer sleeve 19 is notched, as at 23, for chip clearance. The bit shank 24 is rotatably and slidably received in a bearing 25 located in the lower end of the sleeve 19 immediately above the recess 23. As shown in Figure 2, the bearing 25 is detachably secured in place by means of a set screw 26 threadedly engaged in and extending through the sleeve 19 and into a recess 27 in the side of the bearing 25. The shank 24 of the bit 20 is connected with the lower end of the flexible shaft 22 by means of a set screw 28 threadedly positioned through "arent the side of a tubular adapter 29, the outside diameter of said adapter being slightly less than the inside diameter of said sleeve, and which set screw extends into a recess 30 in the upper end of said bit shank which is slidably received within said tubular adapter. The set screw 28 is accessible through an opening 31 in the side of the sleeve 22.
The upper end of the ilexible shaft 22 is connected with la straight shaft 32 which extends through and is rotatable in the slidable bearing sleeve 21. The connection between the exible shaft 22 and the straight shaft 32 is by means of an adapter 33 of a construction like that described in connection with adapter 29.
The upper end of the slidable sleeve bearing 21 is shouldered, as at 34, to limit the downward movement of the outer sleeve 1.9. The upper extending end of the shaft 32 is engaged in the chuck 35 of an electric hand drill 36. A collar 37 is mounted on the extending end of the shaft 32 immediately above the sleeve shoulder 34, and which collar is held in place by means of a set screw 38.
In operation, the bit end of the described extension drill is inserted through the opening 18 in the inner Wall 10 and placed on the surface of the plate 12 to be drilled. In this position, the inner sleeve bearing 21 is outwardly extended, and at which time the outer sleeve 19 is manually held in operating position. Pressure is applied to the hand drill 36 as the bit 20 drills the hole '17, and at which time the entire inner mechanism of the described extensiou drill, with the exception of the lower bearing 25, moves downwardly to complete the hole. It is pointed out that there is no downward movement of the bent outer sleeve; thus, the opening 18 may be relatively small.
The invention is not limited to the exemplary construction herein shown and described, but may be made in various ways within the scope of the appended claims.
What is claimed is:
1. A portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved thereabove, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a exible shaft within said tube, a wood bit having a shank, said bit being adapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said llexible shaft with the shank of said bit, the outside dia meter of said connector being of a size to rotate and slidably engage the lower end of said tube, a rigid shaft connected with the upper end of said iexible shaft and extending outwardly of the upper end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and means within said tube limiting the longitudinal movement of said drilling assembly in said tube.
2. A portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved thereabove, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a tlexible shaft within said tube, a wood bit having a shank, said bit being adapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said flexible shaft with the shank of said bit, the outside diameter of said connector being of a size to rotate and slidably engage the lower end of said tube, a rigid shaft connected with the upper end of said flexible shaft and extending outwardly of the upper end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and bearings mounted in upper rand lower ends of tube, the bearing in the lower end of said tube being at the lower end of the said straight lower end and slidably engaging the shank of said bit, and the upper said bearing being slidably mounted in the upper end of Said tube and rotatably engaging said rigid shaft.
3. A portable hand drill extension for drilling a perpendicular hole in a horizontal wall plate between inner and outer walls, said drill extension comprising a rigid tube having a vertical straight lower end when in operating position and curved between the ends thereof, the upper and lower ends of said tube being disposed at an angle of substantially 135, a drilling assembly longitudinally slidable within said tube, said drilling assembly comprising a exible shaft within said tube, a wood bit having a shank, said bit being ladapted to be received within and extend from the straight lower end of said tube, a cylindrical connector within the straight lower end of said tube and connecting one end of said exible shaft with the shank of said bit, the outside diameter of said connector being of a size to rotate and slidably engage l the lower end of said tube, a rigid shaft connected with the upper end of said iexible shaft and extending outwardly of the upper `end of said tube, said rigid shaft being of a size to be engaged by the chuck of an electric hand drill, and means within said tube limiting the longitudinal movement of said drilling assembly in said tube.
References Cited in the tile of this patent UNITED STATES PATENTS FOREIGN PATENTS Germany Nov. 24, 1930 Germany Dec. 8, 1952
US680041A 1957-08-26 1957-08-26 Curved extension drill Expired - Lifetime US2958349A (en)

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006223A (en) * 1959-08-04 1961-10-31 John G Broussard Plate boring device
US3016073A (en) * 1960-01-27 1962-01-09 John G Broussard Drill bit guide
US3023303A (en) * 1959-05-25 1962-02-27 Shajenko Petro Welding process and apparatus
US3331288A (en) * 1965-01-07 1967-07-18 Int Harvester Co Piston machine
US3365987A (en) * 1965-08-27 1968-01-30 Eugene P. Heller Flexible drill and guide tool
DE2032406A1 (en) * 1969-07-01 1971-01-21 Diversified Manufacturing & Marke ting Co Ine , Burlington, NC (V St A ) Method and device for forming holes in components and installing lines
US3675312A (en) * 1970-05-21 1972-07-11 Patricio Herman Method for joining abutting elements by concealed means
US4329783A (en) * 1980-01-31 1982-05-18 Grumman Allied Industries, Inc. Rafter finder
JPS603003U (en) * 1983-06-20 1985-01-10 小林　恒美 Drill
US4641016A (en) * 1983-11-30 1987-02-03 Michel Garcia Device for forming tunnels in composite wall panels
US4741083A (en) * 1987-01-09 1988-05-03 Wolfe Donald E Tool for unplugging fire hydrant drains
US5017057A (en) * 1989-09-05 1991-05-21 Ronald J. Harms Apparatus for drilling a circularly curved bore
US5395188A (en) * 1993-12-23 1995-03-07 Roy E. Bowling Guide for angled and curved drilling
US6257808B1 (en) 1999-10-29 2001-07-10 Daniel Groot Wall fishing apparatus
US6267679B1 (en) 1997-12-31 2001-07-31 Jack W. Romano Method and apparatus for transferring drilling energy to a cutting member
US20030060841A1 (en) * 2001-09-25 2003-03-27 Del Rio Eddy H. High speed surgical instrument
FR2838250A1 (en) * 2002-04-03 2003-10-10 Electricite Generale Dias Pire Device to form a passage in a wall for pipes or cables, uses a rotary tool at the end of a flexible rod which can be driven by an electric hand tool
US20040087958A1 (en) * 2002-10-30 2004-05-06 Myers Reese K. Curved surgical tool driver
US7112015B2 (en) 2001-09-26 2006-09-26 Airbus Uk Limited Drill tool
US20070264093A1 (en) * 2006-05-10 2007-11-15 White Christopher L Flexible and extendable drill bit assembly
US20080317559A1 (en) * 2006-05-10 2008-12-25 White Christopher L Flexible and extendible drill bit assembly
US20090228014A1 (en) * 2007-02-20 2009-09-10 Stearns Stanley D Treatment delivery system and method of use
US20100258771A1 (en) * 2009-04-09 2010-10-14 White Christopher L Wire pull assembly
US20100303568A1 (en) * 2009-06-01 2010-12-02 Colleen York Drill bit system, assembly, and method for forming holes in materials
US20110168419A1 (en) * 2010-01-08 2011-07-14 Russell Reynolds Modified power tool
US8770898B2 (en) 2010-05-13 2014-07-08 Greenlee Textron Inc. Tail piece for an extendable drill bit assembly having a reduced head
US20160135862A1 (en) * 2014-11-17 2016-05-19 Spinal Elements, Inc. Curved surgical tools
US20180117731A1 (en) * 2016-09-09 2018-05-03 Advanced Turbine Support, LLC Industrial High Speed Micro Drill
EP2395254B1 (en) * 2010-06-10 2019-11-13 Dassault Aviation Extension lead for a motorised drive device and corresponding tool
US10655750B2 (en) 2017-02-28 2020-05-19 Brian Larson Apparatus and method for engaging an appliance closure valve
US11253932B2 (en) * 2018-11-01 2022-02-22 Hurricane Reinstatement Solutions, LLC Pipeline reinstatement tool

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US504720A (en) * 1893-09-12 gillette
US698418A (en) * 1902-01-08 1902-04-22 Gordon Hollow Blast Grate Company Power-driven tool.
US1367042A (en) * 1919-12-08 1921-02-01 Granville Bernard Drilling apparatus
US1595922A (en) * 1925-09-09 1926-08-10 Orville C Prindle Right-angle drill
DE512337C (en) * 1928-10-07 1930-11-24 Ludwig Rehder pipe cleaner
US1910768A (en) * 1931-01-28 1933-05-23 Stow Mfg Company Boring tool
US2117659A (en) * 1936-02-15 1938-05-17 Nat Cable Inc Pipe cleaning device
US2608384A (en) * 1948-05-21 1952-08-26 Henry R Alexander Drill
DE749949C (en) * 1942-03-21 1952-12-08 Bosch Gmbh Robert Auxiliary equipment for hand drills
US2711199A (en) * 1952-06-13 1955-06-21 Oscar B Salsberg Drill extension
US2726847A (en) * 1952-03-31 1955-12-13 Oilwell Drain Hole Drilling Co Drain hole drilling equipment
US2739585A (en) * 1953-06-04 1956-03-27 Ayre James Ernest Instrument for obtaining cells for cytodiagnosis

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US504720A (en) * 1893-09-12 gillette
US698418A (en) * 1902-01-08 1902-04-22 Gordon Hollow Blast Grate Company Power-driven tool.
US1367042A (en) * 1919-12-08 1921-02-01 Granville Bernard Drilling apparatus
US1595922A (en) * 1925-09-09 1926-08-10 Orville C Prindle Right-angle drill
DE512337C (en) * 1928-10-07 1930-11-24 Ludwig Rehder pipe cleaner
US1910768A (en) * 1931-01-28 1933-05-23 Stow Mfg Company Boring tool
US2117659A (en) * 1936-02-15 1938-05-17 Nat Cable Inc Pipe cleaning device
DE749949C (en) * 1942-03-21 1952-12-08 Bosch Gmbh Robert Auxiliary equipment for hand drills
US2608384A (en) * 1948-05-21 1952-08-26 Henry R Alexander Drill
US2726847A (en) * 1952-03-31 1955-12-13 Oilwell Drain Hole Drilling Co Drain hole drilling equipment
US2711199A (en) * 1952-06-13 1955-06-21 Oscar B Salsberg Drill extension
US2739585A (en) * 1953-06-04 1956-03-27 Ayre James Ernest Instrument for obtaining cells for cytodiagnosis

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023303A (en) * 1959-05-25 1962-02-27 Shajenko Petro Welding process and apparatus
US3006223A (en) * 1959-08-04 1961-10-31 John G Broussard Plate boring device
US3016073A (en) * 1960-01-27 1962-01-09 John G Broussard Drill bit guide
US3331288A (en) * 1965-01-07 1967-07-18 Int Harvester Co Piston machine
US3365987A (en) * 1965-08-27 1968-01-30 Eugene P. Heller Flexible drill and guide tool
DE2032406A1 (en) * 1969-07-01 1971-01-21 Diversified Manufacturing & Marke ting Co Ine , Burlington, NC (V St A ) Method and device for forming holes in components and installing lines
US3697188A (en) * 1969-07-01 1972-10-10 Diversified Mfg And Marketing Apparatus for forming holes in and installing lines in structural members
US3675312A (en) * 1970-05-21 1972-07-11 Patricio Herman Method for joining abutting elements by concealed means
US4329783A (en) * 1980-01-31 1982-05-18 Grumman Allied Industries, Inc. Rafter finder
JPS603003U (en) * 1983-06-20 1985-01-10 小林　恒美 Drill
US4641016A (en) * 1983-11-30 1987-02-03 Michel Garcia Device for forming tunnels in composite wall panels
US4741083A (en) * 1987-01-09 1988-05-03 Wolfe Donald E Tool for unplugging fire hydrant drains
US5017057A (en) * 1989-09-05 1991-05-21 Ronald J. Harms Apparatus for drilling a circularly curved bore
US5395188A (en) * 1993-12-23 1995-03-07 Roy E. Bowling Guide for angled and curved drilling
US6267679B1 (en) 1997-12-31 2001-07-31 Jack W. Romano Method and apparatus for transferring drilling energy to a cutting member
US6257808B1 (en) 1999-10-29 2001-07-10 Daniel Groot Wall fishing apparatus
US20030060841A1 (en) * 2001-09-25 2003-03-27 Del Rio Eddy H. High speed surgical instrument
US6733218B2 (en) * 2001-09-25 2004-05-11 The Anspach Effort, Inc. High speed surgical instrument
US7112015B2 (en) 2001-09-26 2006-09-26 Airbus Uk Limited Drill tool
FR2838250A1 (en) * 2002-04-03 2003-10-10 Electricite Generale Dias Pire Device to form a passage in a wall for pipes or cables, uses a rotary tool at the end of a flexible rod which can be driven by an electric hand tool
US7326215B2 (en) * 2002-10-30 2008-02-05 Symmetry Medical, Inc. Curved surgical tool driver
US20040087958A1 (en) * 2002-10-30 2004-05-06 Myers Reese K. Curved surgical tool driver
US20070264093A1 (en) * 2006-05-10 2007-11-15 White Christopher L Flexible and extendable drill bit assembly
US7435042B2 (en) * 2006-05-10 2008-10-14 White Christopher L Flexible and extendable drill bit assembly
US20080317559A1 (en) * 2006-05-10 2008-12-25 White Christopher L Flexible and extendible drill bit assembly
US9844818B2 (en) 2006-05-10 2017-12-19 Christopher L White Flexible and extendible drill bit assembly
US9089901B2 (en) 2006-05-10 2015-07-28 Christopher L. White Flexible and extendible drill bit assembly
US8251999B2 (en) 2007-02-20 2012-08-28 Gabriel Institute, Inc. Treatment delivery system
US8828001B2 (en) * 2007-02-20 2014-09-09 Gabriel Institute, Inc. Bone drill and methods of treatment
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US20100256644A1 (en) * 2007-02-20 2010-10-07 Gabriel Institute, Inc. Bone drill and methods of treatment
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