NL6906081A - - Google Patents

Info

Publication number
NL6906081A
NL6906081A NL6906081A NL6906081A NL6906081A NL 6906081 A NL6906081 A NL 6906081A NL 6906081 A NL6906081 A NL 6906081A NL 6906081 A NL6906081 A NL 6906081A NL 6906081 A NL6906081 A NL 6906081A
Authority
NL
Netherlands
Application number
NL6906081A
Other versions
NL151018B (nl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US430832A external-priority patent/US3246556A/en
Application filed filed Critical
Priority to NL6906081A priority Critical patent/NL151018B/xx
Publication of NL6906081A publication Critical patent/NL6906081A/xx
Publication of NL151018B publication Critical patent/NL151018B/xx

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
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/027—Rolling of self-tapping screws
    • 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
    • F16B25/0042—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0057—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 the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
NL6906081A 1965-02-08 1969-04-18 Werkwijze voor het vervaardigen van een zelftappende schroef, alsmede de matrijs voor het uitvoeren van deze werkwijze en de zelftappende schroef. NL151018B (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL6906081A NL151018B (nl) 1965-02-08 1969-04-18 Werkwijze voor het vervaardigen van een zelftappende schroef, alsmede de matrijs voor het uitvoeren van deze werkwijze en de zelftappende schroef.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US430832A US3246556A (en) 1965-02-08 1965-02-08 Self-tapping threaded fasteners
NL6906081A NL151018B (nl) 1965-02-08 1969-04-18 Werkwijze voor het vervaardigen van een zelftappende schroef, alsmede de matrijs voor het uitvoeren van deze werkwijze en de zelftappende schroef.

Publications (2)

Publication Number Publication Date
NL6906081A true NL6906081A (enrdf_load_stackoverflow) 1969-07-25
NL151018B NL151018B (nl) 1976-10-15

Family

ID=26644424

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6906081A NL151018B (nl) 1965-02-08 1969-04-18 Werkwijze voor het vervaardigen van een zelftappende schroef, alsmede de matrijs voor het uitvoeren van deze werkwijze en de zelftappende schroef.

Country Status (1)

Country Link
NL (1) NL151018B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL151018B (nl) 1976-10-15

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: RESEARCH