BE379720A - - Google Patents
Info
- Publication number
- BE379720A BE379720A BE379720DA BE379720A BE 379720 A BE379720 A BE 379720A BE 379720D A BE379720D A BE 379720DA BE 379720 A BE379720 A BE 379720A
- 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)
- Tumbler Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Percussion Or Vibration Massage (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT379748X | 1930-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE379720A true BE379720A (https=) |
Family
ID=3673116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE379720D BE379720A (https=) | 1930-06-05 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE379720A (https=) |
| DE (1) | DE549549C (https=) |
| FR (1) | FR717310A (https=) |
| GB (1) | GB379748A (https=) |
-
0
- BE BE379720D patent/BE379720A/xx unknown
-
1930
- 1930-11-21 DE DE1930549549D patent/DE549549C/de not_active Expired
-
1931
- 1931-05-20 FR FR717310D patent/FR717310A/fr not_active Expired
- 1931-06-04 GB GB16397/31A patent/GB379748A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR717310A (fr) | 1932-01-07 |
| GB379748A (en) | 1932-09-05 |
| DE549549C (de) | 1932-04-28 |