FR717310A - Electro-magnetic auto-switch - Google Patents
Electro-magnetic auto-switchInfo
- Publication number
- FR717310A FR717310A FR717310DA FR717310A FR 717310 A FR717310 A FR 717310A FR 717310D A FR717310D A FR 717310DA FR 717310 A FR717310 A FR 717310A
- Authority
- FR
- France
- Prior art keywords
- electro
- switch
- magnetic auto
- auto
- magnetic
- 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
-
- 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 |
---|---|
FR717310A true FR717310A (en) | 1932-01-07 |
Family
ID=3673116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR717310D Expired FR717310A (en) | 1930-06-05 | 1931-05-20 | Electro-magnetic auto-switch |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE379720A (en) |
DE (1) | DE549549C (en) |
FR (1) | FR717310A (en) |
GB (1) | GB379748A (en) |
-
0
- BE BE379720D patent/BE379720A/xx unknown
-
1930
- 1930-11-21 DE DE1930549549D patent/DE549549C/en not_active Expired
-
1931
- 1931-05-20 FR FR717310D patent/FR717310A/en not_active Expired
- 1931-06-04 GB GB16397/31A patent/GB379748A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE549549C (en) | 1932-04-28 |
GB379748A (en) | 1932-09-05 |
BE379720A (en) |
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