BE507578A - - Google Patents
Info
- Publication number
- BE507578A BE507578A BE507578DA BE507578A BE 507578 A BE507578 A BE 507578A BE 507578D A BE507578D A BE 507578DA BE 507578 A BE507578 A BE 507578A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
- H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Contacts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR986476T | 1949-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE507578A true BE507578A (it) |
Family
ID=9538082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE507578D BE507578A (it) | 1949-03-08 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2690512A (it) |
| BE (1) | BE507578A (it) |
| DE (1) | DE816280C (it) |
| FR (2) | FR986476A (it) |
| GB (2) | GB672377A (it) |
| NL (4) | NL78787C (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2864920A (en) * | 1954-10-20 | 1958-12-16 | George Trad | High speed switch mechanism |
| US3345884A (en) * | 1964-09-18 | 1967-10-10 | Ammco Tools Inc | Grinding device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US767599A (en) * | 1903-09-17 | 1904-08-16 | Charles E Sedgwick | Electrically-operated apparatus. |
| US1078106A (en) * | 1909-07-17 | 1913-11-11 | Mcmeen & Miller | Harmonic relay. |
| US1692961A (en) * | 1921-12-29 | 1928-11-27 | American Telephone & Telegraph | Alternating-current relay |
| US1905771A (en) * | 1926-11-27 | 1933-04-25 | Gen Electric Vapor Lamp Co | Switch mounting |
| US1949489A (en) * | 1932-01-21 | 1934-03-06 | Harry W Burmeister | Flasher switch |
| US2634377A (en) * | 1950-09-11 | 1953-04-07 | Bendix Aviat Corp | Vibratory switch |
-
0
- NL NL81980D patent/NL81980C/xx active
- BE BE507578D patent/BE507578A/xx unknown
- NL NL666617422A patent/NL151504B/xx unknown
- NL NL7500788.A patent/NL165783B/xx unknown
- NL NL78787D patent/NL78787C/xx active
-
1949
- 1949-03-08 FR FR986476D patent/FR986476A/fr not_active Expired
-
1950
- 1950-02-16 DE DEC522A patent/DE816280C/de not_active Expired
- 1950-02-27 GB GB5013/50A patent/GB672377A/en not_active Expired
-
1951
- 1951-01-13 FR FR61232D patent/FR61232E/fr not_active Expired
- 1951-12-31 US US264337A patent/US2690512A/en not_active Expired - Lifetime
-
1952
- 1952-01-10 GB GB812/52A patent/GB700489A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL78787C (it) | |
| NL81980C (it) | |
| US2690512A (en) | 1954-09-28 |
| NL165783B (nl) | |
| NL151504B (nl) | |
| GB700489A (en) | 1953-12-02 |
| DE816280C (de) | 1951-10-08 |
| FR61232E (fr) | 1955-04-05 |
| GB672377A (en) | 1952-05-21 |
| FR986476A (fr) | 1951-08-01 |