NL169916C - SELF-DRILLING SCREW. - Google Patents
SELF-DRILLING SCREW.Info
- Publication number
- NL169916C NL169916C NLAANVRAGE7707804,A NL7707804A NL169916C NL 169916 C NL169916 C NL 169916C NL 7707804 A NL7707804 A NL 7707804A NL 169916 C NL169916 C NL 169916C
- Authority
- NL
- Netherlands
- Prior art keywords
- self
- drilling screw
- drilling
- screw
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/56—Making machine elements screw-threaded elements
-
- 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
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0084—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by geometric details of the tip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Dental Prosthetics (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54889266A | 1966-05-10 | 1966-05-10 | |
NL6703231A NL6703231A (en) | 1966-05-10 | 1967-02-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7707804A NL7707804A (en) | 1977-10-31 |
NL169916B NL169916B (en) | 1982-04-01 |
NL169916C true NL169916C (en) | 1982-09-01 |
Family
ID=26644161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7707804,A NL169916C (en) | 1966-05-10 | 1977-07-13 | SELF-DRILLING SCREW. |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL169916C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116923A (en) * | 1981-01-12 | 1982-07-21 | Katsuhisa Yamazaki | Drill screw |
-
1977
- 1977-07-13 NL NLAANVRAGE7707804,A patent/NL169916C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL169916B (en) | 1982-04-01 |
NL7707804A (en) | 1977-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V4 | Lapsed because of reaching the maximum lifetime of a patent |