FI328173A - - Google Patents
Info
- Publication number
- FI328173A FI328173A FI3281/73A FI328173A FI328173A FI 328173 A FI328173 A FI 328173A FI 3281/73 A FI3281/73 A FI 3281/73A FI 328173 A FI328173 A FI 328173A FI 328173 A FI328173 A FI 328173A
- Authority
- FI
- Finland
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7311365A SE7311365L (fi) | 1973-08-21 | 1973-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI328173A true FI328173A (fi) | 1975-02-22 |
Family
ID=20318285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI3281/73A FI328173A (fi) | 1973-08-21 | 1973-10-23 |
Country Status (7)
| Country | Link |
|---|---|
| DE (1) | DE2440156A1 (fi) |
| DK (1) | DK572473A (fi) |
| FI (1) | FI328173A (fi) |
| FR (1) | FR2241715B3 (fi) |
| GB (1) | GB1486246A (fi) |
| NO (1) | NO439473L (fi) |
| SE (1) | SE7311365L (fi) |
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 (de) * | 1983-07-15 | 1985-01-24 | EJOT Eberhard Jaeger GmbH & Co KG, 5928 Bad Laasphe | Geraet zum ein- bzw. ausdrehen von schrauben |
| IT8452845V0 (it) * | 1984-01-17 | 1984-01-17 | Fossati Onorina | Vite adatta a coppie di serraggio di precisione |
| US6223634B1 (en) * | 1997-10-03 | 2001-05-01 | Phillips Screw Company | Recessed head fastener and driver systems |
| WO1999047820A1 (es) * | 1998-03-18 | 1999-09-23 | Francisco Casino Lorite | Conjunto de tornillo y destornillador mutuamente autoagarrables |
-
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/de active Pending
- 1974-08-21 FR FR7428653A patent/FR2241715B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7311365L (fi) | 1975-02-24 |
| GB1486246A (en) | 1977-09-21 |
| DK572473A (fi) | 1975-04-28 |
| NO439473L (fi) | 1975-03-17 |
| FR2241715B3 (fi) | 1977-06-10 |
| DE2440156A1 (de) | 1975-03-06 |
| FR2241715A1 (fi) | 1975-03-21 |