NL169916B - SELF-DRILLING SCREW. - Google Patents
SELF-DRILLING SCREW.Info
- Publication number
- NL169916B NL169916B NLAANVRAGE7707804,A NL7707804A NL169916B NL 169916 B NL169916 B NL 169916B NL 7707804 A NL7707804 A NL 7707804A NL 169916 B NL169916 B NL 169916B
- 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
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 true NL169916B (en) | 1982-04-01 |
NL169916C 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 |
---|---|
NL169916C (en) | 1982-09-01 |
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 |