FR1255865A - Dispositif de fixation fileté à tête évidée - Google Patents
Dispositif de fixation fileté à tête évidéeInfo
- Publication number
- FR1255865A FR1255865A FR825977A FR825977A FR1255865A FR 1255865 A FR1255865 A FR 1255865A FR 825977 A FR825977 A FR 825977A FR 825977 A FR825977 A FR 825977A FR 1255865 A FR1255865 A FR 1255865A
- Authority
- FR
- France
- Prior art keywords
- threaded fastener
- hollow head
- head threaded
- hollow
- fastener
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- 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
- F16B23/0023—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 substantially cross-shaped
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/001—Screwdrivers characterised by material or shape of the tool bit
- B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
- B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/044—Specially-shaped ends
- F16B35/045—Specially-shaped ends for retention or rotation by a tool
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR825977A FR1255865A (fr) | 1959-05-05 | 1960-05-02 | Dispositif de fixation fileté à tête évidée |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81110559A | 1959-05-05 | 1959-05-05 | |
FR825977A FR1255865A (fr) | 1959-05-05 | 1960-05-02 | Dispositif de fixation fileté à tête évidée |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1255865A true FR1255865A (fr) | 1961-03-10 |
Family
ID=26185854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR825977A Expired FR1255865A (fr) | 1959-05-05 | 1960-05-02 | Dispositif de fixation fileté à tête évidée |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1255865A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1675640B1 (de) * | 1961-05-26 | 1969-12-11 | Gkn Screws Fasteners Ltd | Kreuzschlitzschraube |
US6182657B1 (en) * | 1995-09-18 | 2001-02-06 | Resmed Limited | Pressure control in CPAP treatment or assisted respiration |
-
1960
- 1960-05-02 FR FR825977A patent/FR1255865A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1675640B1 (de) * | 1961-05-26 | 1969-12-11 | Gkn Screws Fasteners Ltd | Kreuzschlitzschraube |
US6182657B1 (en) * | 1995-09-18 | 2001-02-06 | Resmed Limited | Pressure control in CPAP treatment or assisted respiration |
US6526974B1 (en) | 1995-09-18 | 2003-03-04 | John William Ernest Brydon | Pressure control in CPAP treatment or assisted respiration |
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