SE7311365L - - Google Patents
Info
- Publication number
- SE7311365L SE7311365L SE7311365A SE7311365A SE7311365L SE 7311365 L SE7311365 L SE 7311365L SE 7311365 A SE7311365 A SE 7311365A SE 7311365 A SE7311365 A SE 7311365A SE 7311365 L SE7311365 L SE 7311365L
- Authority
- SE
- Sweden
Links
Classifications
-
- 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
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
- B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
-
- 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
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7311365A SE7311365L (en) | 1973-08-21 | 1973-08-21 | |
DK572473A DK572473A (en) | 1973-08-21 | 1973-10-22 | |
FI3281/73A FI328173A (en) | 1973-08-21 | 1973-10-23 | |
NO4394/73A NO439473L (en) | 1973-08-21 | 1973-11-15 | |
FR7428653A FR2241715B3 (en) | 1973-08-21 | 1974-08-21 | |
GB36802/74A GB1486246A (en) | 1973-08-21 | 1974-08-21 | Method of and a tool for manufacturing a conical spline drive socket |
DE2440156A DE2440156A1 (en) | 1973-08-21 | 1974-08-21 | TAPERED GROOVED SCREW RECESSES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7311365A SE7311365L (en) | 1973-08-21 | 1973-08-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7311365L true SE7311365L (en) | 1975-02-24 |
Family
ID=20318285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7311365A SE7311365L (en) | 1973-08-21 | 1973-08-21 |
Country Status (7)
Country | Link |
---|---|
DE (1) | DE2440156A1 (en) |
DK (1) | DK572473A (en) |
FI (1) | FI328173A (en) |
FR (1) | FR2241715B3 (en) |
GB (1) | GB1486246A (en) |
NO (1) | NO439473L (en) |
SE (1) | SE7311365L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4202244A (en) * | 1978-07-26 | 1980-05-13 | Technofast, Inc. | Recessed head screw |
DE3325565A1 (en) * | 1983-07-15 | 1985-01-24 | EJOT Eberhard Jaeger GmbH & Co KG, 5928 Bad Laasphe | DEVICE FOR USE UNLOCKING SCREWS |
IT8452845V0 (en) * | 1984-01-17 | 1984-01-17 | Fossati Onorina | SCREW SUITABLE FOR PRECISION TIGHTENING TORQUES |
US6223634B1 (en) * | 1997-10-03 | 2001-05-01 | Phillips Screw Company | Recessed head fastener and driver systems |
WO1999047820A1 (en) * | 1998-03-18 | 1999-09-23 | Francisco Casino Lorite | Assembly of screw and screwdriver which are mutually self-gripping |
-
1973
- 1973-08-21 SE SE7311365A patent/SE7311365L/xx unknown
- 1973-10-22 DK DK572473A patent/DK572473A/da unknown
- 1973-10-23 FI FI3281/73A patent/FI328173A/fi unknown
- 1973-11-15 NO NO4394/73A patent/NO439473L/no unknown
-
1974
- 1974-08-21 GB GB36802/74A patent/GB1486246A/en not_active Expired
- 1974-08-21 DE DE2440156A patent/DE2440156A1/en active Pending
- 1974-08-21 FR FR7428653A patent/FR2241715B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FI328173A (en) | 1975-02-22 |
GB1486246A (en) | 1977-09-21 |
DK572473A (en) | 1975-04-28 |
NO439473L (en) | 1975-03-17 |
FR2241715B3 (en) | 1977-06-10 |
DE2440156A1 (en) | 1975-03-06 |
FR2241715A1 (en) | 1975-03-21 |