US3372763A - Drill - Google Patents

Drill Download PDF

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Publication number
US3372763A
US3372763A US558211A US55821166A US3372763A US 3372763 A US3372763 A US 3372763A US 558211 A US558211 A US 558211A US 55821166 A US55821166 A US 55821166A US 3372763 A US3372763 A US 3372763A
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US
United States
Prior art keywords
drill
end portion
jacket
shank
bore hole
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.)
Expired - Lifetime
Application number
US558211A
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English (en)
Inventor
Fischer Artur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3372763A publication Critical patent/US3372763A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry

Definitions

  • the present invention relates to a drill. More specifically, the invention relates to a drill having means for facilitating escape of comminuted material from a bore hole produced by such drill.
  • a more specific object of the invention is to provide a drill having means for facilitating escape of comminuted material from a bore hole made with the drill and being simple and inexpensive to construct.
  • a concomitant object of the invention is to provide such a drill in which the friction of material escaping from a bore hole made with a drill is significantly reduced over what is known from the prior art.
  • a drill comprising a shank having a front end portion and a rear end portion.
  • This shank carries a drill bit on its front end portion.
  • I provide an elongated jacket of synthetic plastic material which extends between the front end portion and the rear end portion and has an external face provided with at least one groove extending over the entire length of the jacket.
  • FIG. 1 is an elevational view of a novel drill in accordance with the present invention, with the plastic jacket partially broken away;
  • FIG. 2 is a view taken in the direction of the arrow A of FIG. 1;
  • FIG. 3 is a perspective view of a drill bit finding use with the drill of FIG. 1;
  • FIG. 4 is an elevational view, partly in section, of another embodiment of the invention.
  • FIG. 5 is a view of the embodiment in FIG. 4, as seen in the direction of the arrow B thereof;
  • FIG. 6 is a section taken through the embodiment shown in FIG. 4 0n the line VI-VI thereof;
  • FIG. 7 is a view showing the novel drill according to the present invention in use for drilling a bore hole in masonry.
  • the drill is generally indicated with reference numeral 1. It comprises a shank 1a and a front end portion 1b and the shank is surrounded by a plastic jacket 2.
  • This jacket 2 of synthetic plastic material may be constructed as a separate member to be placed onto the shank 1a, or it may be directly applied thereonto by a spraying or injecting process.
  • the front end portion 1b of shank 1a is flattened so as to have a polygonal, in the present embodiment rectangular, cross section, as is most readily evident from FIG. 2. Since this front end portion 112 is partially surounded by the plastic jacket 2 a rotation of the latter with respect: to the shank 1a is thus precluded.
  • the plastic jacket 2 is provided in its external face with at least one groove, preferably of helical configuration, which is indicated in FIG. 1 with the reference numeral 2a. As is evident from FIG. 7, comminuted material can pass along this groove from the interior of a bore hole which has been drilled with the novel drill and is thus evacuated from the bore hole.
  • a tough synthetic plastic material such as nylon or Teflon, having a low coefiicient of friction, is particularly suited for constructing the jacket 2.
  • FIG. 3 I provide separately a drill bit 3 having a recess 3a which corresponds to the cross sectional configuration of the front end portion 1b of shank 1a. It will be clear that the front end portion 1b is to be received in the recess So so that the drill bit 3 is nonrotatably joined to the drill 1. It will now be further obvious from what has just been said that, after the drill shown in FIGS. 1-3 has been used for drilling a bore hole in masonry material, such as is illustrated in FIG. 7, the shank 1a is withdrawn from the bore hole and the drill bit 3 remains therein. Thus, the shank 1a, including its plastic jacket 2, can be simply reused by joining a new drill bit 3 thereto.
  • FIGS. 4-6 A second possible embodiment of the present invention is shown in FIGS. 4-6. It corresponds substantially to the embodiment shown in FIGS. 1-3.
  • the plastic jacket in this second embodiment is generally indicated with reference numeral 12 and it will be noticed that it is in the form of a separate sleeve-like member provided with a center passage 120 of substantially circular cross section.
  • the internal face of this jacket is provided over its entire length with axially extending grooves 12d which receive, when the jacket is slipped onto the shank 11a of the drill 11, projections or keys provided on the shank 11a.
  • the drill bit 13 corresponds substantially to the drill bit 3 shown in FIG.
  • the drill bit in FIGS. 4-6 is non-releasably secured to the front end position 11b of the drill 11.
  • the drill in its entirety, including the drill bit 13 is withdrawn when a bore hole has been completed and the entire drill can be re-used.
  • the drill bit 13 could not be provided as a separate and releasable member in the manner of the drill bit of FIG. 3, if such should be desired.
  • the advantage of providing a separate and releasable synthetic plastic jacket 12, as seen in the embodiment of FIGS. 4-6, lies in the fact that the jacket can be readily removed and replaced with a new one if damage to it should occur.
  • FIG. 7 in which a novel drill in accordance with the embodiment of FIGS. l3 is shown gripped by the chuck 7 of a drilling tool 3 for drilling a bore hole into a masonry structure 6, shows how the groove in the outer face of the plastic jacket 2 evacuates cornminuted materal 4 from the bore hole 5. ests have shown that the evacuation of such comminuted material by a novel drill in accordance with the present invention is considerably improved over conventional drills known from the prior art.
  • a drill comprising a shank having a front end portion and a rear end portion; a drill bit carried by said front end portion; and an elongated jacket of synthetic plastic material extending between said front end portion and said rear end portion, said jacket having an external face provided with at least one groove extending over the entire length of said jacket so that comminuted material resulting from drilling of a bore hole with said drill can escape from such bore hole along said groove.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US558211A 1965-06-14 1966-06-14 Drill Expired - Lifetime US3372763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0046325 1965-06-14

Publications (1)

Publication Number Publication Date
US3372763A true US3372763A (en) 1968-03-12

Family

ID=7100973

Family Applications (1)

Application Number Title Priority Date Filing Date
US558211A Expired - Lifetime US3372763A (en) 1965-06-14 1966-06-14 Drill

Country Status (7)

Country Link
US (1) US3372763A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT268628B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE681651A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH440097A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES327876A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1108373A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6607373A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802059A (en) * 1969-09-19 1974-04-09 Fischer Artur Method of setting an expansion anchor
US3960223A (en) * 1974-03-26 1976-06-01 Gebrueder Heller Drill for rock
US4051905A (en) * 1974-03-28 1977-10-04 Gerbruder Heller Drill for percussion drilling machines
US4365678A (en) * 1980-11-28 1982-12-28 Mobil Oil Corporation Tubular drill string member with contoured circumferential surface
US4406332A (en) * 1978-10-02 1983-09-27 Dismukes Newton B Rotary earth boring tool
US4465146A (en) * 1980-11-28 1984-08-14 Mobil Oil Corporation Tubular drill string member with contoured circumferential surface
US4489796A (en) * 1983-05-25 1984-12-25 Gte Laboratories Incorporated Insert for a mine tool roof bit and a method of drilling therewith
US4527638A (en) * 1983-05-25 1985-07-09 Gte Laboratories Incorporated Mine tool roof bit insert and a method of drilling therewith
EP0201724A3 (en) * 1985-05-15 1987-09-30 Hawera Probst Gmbh + Co. Replaceable conveying spiral for a drill bit
EP0201723A3 (en) * 1985-05-15 1987-10-07 Hawera Probst Gmbh + Co. Drilling tool with a replaceable conveying spiral
US4949795A (en) * 1988-07-11 1990-08-21 Gas Research Institute Rotary rapid excavation system
US5002139A (en) * 1988-07-16 1991-03-26 Hawera Probst Gmbh & Co. Drilling tool
WO1991011631A1 (de) * 1990-02-05 1991-08-08 Sfs Stadler Holding Ag Selbstbohrender befestiger
US5265688A (en) * 1990-04-09 1993-11-30 Hilti Aktiengesellschaft Rock drill
US5487434A (en) * 1993-11-12 1996-01-30 Hilti Aktiengesellschaft Rock drill with conveying groove
EP0787550A1 (de) * 1996-01-30 1997-08-06 Berner GmbH Bohrwerkzeug
ITBZ20130059A1 (it) * 2013-11-25 2015-05-26 Intercable Srl Punta elicoidale da trapano e procedimento per la sua produzione
EP3409880A1 (de) * 2017-05-29 2018-12-05 Intercable GmbH Hybrid-eisbohrer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014693A1 (de) * 1980-04-16 1981-10-22 Hilti AG, 9494 Schaan Gesteinsbohrer
US5382121A (en) * 1993-09-02 1995-01-17 Bicknell; David P. Drill bit for use in concrete and asphalt

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1331458A (en) * 1916-06-17 1920-02-17 Hoffman Marguerite Drill
US1616666A (en) * 1923-03-05 1927-02-08 Loran E Nebergall Drill collar for hydraulic rotary drills
US2714500A (en) * 1952-02-06 1955-08-02 Snyder Oil Tool Corp Impact drill
US2754160A (en) * 1956-07-10 Well apparatus
US2773672A (en) * 1952-09-17 1956-12-11 Ellis C Holmes Drilling bit
US2856157A (en) * 1955-09-19 1958-10-14 New England Carbide Tool Compa Masonry drills
US2902260A (en) * 1957-07-16 1959-09-01 Carl V Tilden Drill bit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754160A (en) * 1956-07-10 Well apparatus
US1331458A (en) * 1916-06-17 1920-02-17 Hoffman Marguerite Drill
US1616666A (en) * 1923-03-05 1927-02-08 Loran E Nebergall Drill collar for hydraulic rotary drills
US2714500A (en) * 1952-02-06 1955-08-02 Snyder Oil Tool Corp Impact drill
US2773672A (en) * 1952-09-17 1956-12-11 Ellis C Holmes Drilling bit
US2856157A (en) * 1955-09-19 1958-10-14 New England Carbide Tool Compa Masonry drills
US2902260A (en) * 1957-07-16 1959-09-01 Carl V Tilden Drill bit

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802059A (en) * 1969-09-19 1974-04-09 Fischer Artur Method of setting an expansion anchor
US3960223A (en) * 1974-03-26 1976-06-01 Gebrueder Heller Drill for rock
US4051905A (en) * 1974-03-28 1977-10-04 Gerbruder Heller Drill for percussion drilling machines
US4406332A (en) * 1978-10-02 1983-09-27 Dismukes Newton B Rotary earth boring tool
US4365678A (en) * 1980-11-28 1982-12-28 Mobil Oil Corporation Tubular drill string member with contoured circumferential surface
US4465146A (en) * 1980-11-28 1984-08-14 Mobil Oil Corporation Tubular drill string member with contoured circumferential surface
US4489796A (en) * 1983-05-25 1984-12-25 Gte Laboratories Incorporated Insert for a mine tool roof bit and a method of drilling therewith
US4527638A (en) * 1983-05-25 1985-07-09 Gte Laboratories Incorporated Mine tool roof bit insert and a method of drilling therewith
US4699226A (en) * 1985-05-15 1987-10-13 Hawera Probst Gmbh & Co. Interchangeable conveying spiral for rock drills
EP0201723A3 (en) * 1985-05-15 1987-10-07 Hawera Probst Gmbh + Co. Drilling tool with a replaceable conveying spiral
EP0201724A3 (en) * 1985-05-15 1987-09-30 Hawera Probst Gmbh + Co. Replaceable conveying spiral for a drill bit
US4750572A (en) * 1985-05-15 1988-06-14 Hawera Probst Gmbh & Co. Drilling tool with an interchangeable conveying spiral
US4949795A (en) * 1988-07-11 1990-08-21 Gas Research Institute Rotary rapid excavation system
US5002139A (en) * 1988-07-16 1991-03-26 Hawera Probst Gmbh & Co. Drilling tool
JP2968336B2 (ja) 1990-02-05 1999-10-25 エスエフエス・シュテットレル・ホルディング・アクチェンゲゼルシャフト 自己穴あけする締め具
WO1991011631A1 (de) * 1990-02-05 1991-08-08 Sfs Stadler Holding Ag Selbstbohrender befestiger
US5265688A (en) * 1990-04-09 1993-11-30 Hilti Aktiengesellschaft Rock drill
US5487434A (en) * 1993-11-12 1996-01-30 Hilti Aktiengesellschaft Rock drill with conveying groove
EP0787550A1 (de) * 1996-01-30 1997-08-06 Berner GmbH Bohrwerkzeug
ITBZ20130059A1 (it) * 2013-11-25 2015-05-26 Intercable Srl Punta elicoidale da trapano e procedimento per la sua produzione
EP2875886A1 (de) * 2013-11-25 2015-05-27 Intercable Srl Spiralbohrer und Verfahren zu dessen Herstellung
EP3409880A1 (de) * 2017-05-29 2018-12-05 Intercable GmbH Hybrid-eisbohrer

Also Published As

Publication number Publication date
ES327876A1 (es) 1967-04-01
BE681651A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-10-31
CH440097A (de) 1967-07-15
AT268628B (de) 1969-02-25
GB1108373A (en) 1968-04-03
NL6607373A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-12-15

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