BE384489A - - Google Patents
Info
- Publication number
- BE384489A BE384489A BE384489DA BE384489A BE 384489 A BE384489 A BE 384489A BE 384489D A BE384489D A BE 384489DA BE 384489 A BE384489 A BE 384489A
- Authority
- BE
- Belgium
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
- F16B23/0015—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 rectangular, e.g. one-slot head
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/919—Screw having driving contacts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU1934347X | 1930-10-15 | ||
| GB31759/31A GB377538A (en) | 1930-10-15 | 1931-11-16 | Improvements in screws |
| BE384489T | 1931-11-25 | ||
| NL59271A NL30612C (da) | 1930-10-15 | 1931-11-25 | |
| FR726935T | 1931-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE384489A true BE384489A (da) | 1931-12-31 |
Family
ID=40627306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE384489D BE384489A (da) | 1930-10-15 | 1931-11-25 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1934347A (da) |
| BE (1) | BE384489A (da) |
| FR (1) | FR726935A (da) |
| GB (1) | GB377538A (da) |
| NL (1) | NL30612C (da) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676510A (en) * | 1950-09-23 | 1954-04-27 | Nat Screw & Mfg Company | Screw driver slot with driver wedging means |
| US4033244A (en) * | 1976-04-27 | 1977-07-05 | Ralph Spencer Jacobson | Screw and screw driver |
| GB2131114A (en) * | 1982-11-25 | 1984-06-13 | Chang Chung Hsing | Screw and screwdriver |
| US5582548A (en) * | 1990-04-10 | 1996-12-10 | Czegledi; Imre | Method of manufacture of anti-slip fastener |
| US5236235A (en) * | 1992-06-29 | 1993-08-17 | Chautauqua Hardware Company | Concealed screw rose mounting system |
| US5403139A (en) * | 1993-02-01 | 1995-04-04 | Snap-On Incorporated | Sliding latch mechanism for a cabinet drawer |
| US5562547A (en) * | 1994-08-12 | 1996-10-08 | Borzone; Richard | Self-attachment screw |
| US6554173B1 (en) * | 1997-02-21 | 2003-04-29 | Neil L. Currie | Robertson driver |
| USD1015859S1 (en) * | 2021-12-21 | 2024-02-27 | Hoffman Enclosures, Inc. | Fastener |
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1931
- 1931-10-15 US US569040A patent/US1934347A/en not_active Expired - Lifetime
- 1931-11-16 GB GB31759/31A patent/GB377538A/en not_active Expired
- 1931-11-25 NL NL59271A patent/NL30612C/xx active
- 1931-11-25 BE BE384489D patent/BE384489A/xx unknown
- 1931-11-26 FR FR726935D patent/FR726935A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR726935A (fr) | 1932-06-04 |
| NL30612C (da) | 1933-08-15 |
| GB377538A (en) | 1932-07-28 |
| US1934347A (en) | 1933-11-07 |