GB1232185A - - Google Patents
Info
- Publication number
- GB1232185A GB1232185A GB1232185DA GB1232185A GB 1232185 A GB1232185 A GB 1232185A GB 1232185D A GB1232185D A GB 1232185DA GB 1232185 A GB1232185 A GB 1232185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dec
- drills
- fischer
- heading
- division
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0026—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a hard non-organic material, e.g. stone, concrete or drywall
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Dowels (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE6812703U DE6812703U (de) | 1968-12-21 | 1968-12-21 | Befestigungselement fuer den einsatz in mauerwerk od. dergl. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1232185A true GB1232185A (ko) | 1971-05-19 |
Family
ID=6596759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1232185D Expired GB1232185A (ko) | 1968-12-21 | 1969-12-08 |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4812030B1 (ko) |
BE (1) | BE743351A (ko) |
CH (1) | CH516099A (ko) |
DE (1) | DE6812703U (ko) |
FR (1) | FR2026773A1 (ko) |
GB (1) | GB1232185A (ko) |
IL (1) | IL33569A0 (ko) |
NL (1) | NL6919096A (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026186A (en) * | 1976-02-23 | 1977-05-31 | Illinois Tool Works Inc. | Self-drilling one-piece masonry anchor |
US4386882A (en) * | 1980-03-11 | 1983-06-07 | Hilti Aktiengesellschaft | Self-drilling anchor dowel |
GB2254392A (en) * | 1991-04-02 | 1992-10-07 | Tu Hsiue Te Albert | Self drilling expansion bolt |
-
1968
- 1968-12-21 DE DE6812703U patent/DE6812703U/de not_active Expired
-
1969
- 1969-12-08 GB GB1232185D patent/GB1232185A/en not_active Expired
- 1969-12-17 FR FR6943668A patent/FR2026773A1/fr not_active Withdrawn
- 1969-12-17 CH CH1888269A patent/CH516099A/de unknown
- 1969-12-18 BE BE743351D patent/BE743351A/xx unknown
- 1969-12-19 NL NL6919096A patent/NL6919096A/xx unknown
- 1969-12-19 IL IL33569A patent/IL33569A0/xx unknown
- 1969-12-20 JP JP44102992A patent/JPS4812030B1/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026186A (en) * | 1976-02-23 | 1977-05-31 | Illinois Tool Works Inc. | Self-drilling one-piece masonry anchor |
US4386882A (en) * | 1980-03-11 | 1983-06-07 | Hilti Aktiengesellschaft | Self-drilling anchor dowel |
GB2254392A (en) * | 1991-04-02 | 1992-10-07 | Tu Hsiue Te Albert | Self drilling expansion bolt |
Also Published As
Publication number | Publication date |
---|---|
IL33569A0 (en) | 1970-02-19 |
CH516099A (de) | 1971-11-30 |
NL6919096A (ko) | 1970-06-23 |
DE6812703U (de) | 1969-04-10 |
FR2026773A1 (ko) | 1970-09-18 |
JPS4812030B1 (ko) | 1973-04-17 |
BE743351A (ko) | 1970-05-28 |
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