IT974215B - Apparecchio di commutazione con azionamento magnetico - Google Patents
Apparecchio di commutazione con azionamento magneticoInfo
- Publication number
- IT974215B IT974215B IT5490872A IT5490872A IT974215B IT 974215 B IT974215 B IT 974215B IT 5490872 A IT5490872 A IT 5490872A IT 5490872 A IT5490872 A IT 5490872A IT 974215 B IT974215 B IT 974215B
- Authority
- IT
- Italy
- Prior art keywords
- switching device
- magnetic drive
- magnetic
- drive
- switching
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Discharge Of Articles From Conveyors (AREA)
- Level Indicators Using A Float (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28535372A | 1972-08-31 | 1972-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT974215B true IT974215B (it) | 1974-06-20 |
Family
ID=23093867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT5490872A IT974215B (it) | 1972-08-31 | 1972-12-21 | Apparecchio di commutazione con azionamento magnetico |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS504584A (fr) |
| CA (1) | CA972788A (fr) |
| DE (1) | DE2325017A1 (fr) |
| FR (1) | FR2198247B1 (fr) |
| GB (1) | GB1439140A (fr) |
| IT (1) | IT974215B (fr) |
| NL (1) | NL7215663A (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2600581A (en) * | 1949-07-19 | 1952-06-17 | Schenendorf Benjamin | Magnetic circuit control for burglar alarms |
| DE1061660B (de) * | 1957-05-31 | 1959-07-16 | Siemens Ag | Elektrische Sicherungsanordnung |
| US3175060A (en) * | 1961-08-22 | 1965-03-23 | North Electric Co | Plunger operated magnetic electric switch |
| JPS443408Y1 (fr) * | 1966-02-09 | 1969-02-07 | ||
| US3539957A (en) * | 1968-08-09 | 1970-11-10 | Aerolite Electronics Corp | Magnetic switch |
| US3539741A (en) * | 1969-08-08 | 1970-11-10 | Mallory & Co Inc P R | Magnetically activated door switch |
-
1972
- 1972-10-27 CA CA155,098A patent/CA972788A/en not_active Expired
- 1972-11-20 NL NL7215663A patent/NL7215663A/xx unknown
- 1972-12-21 IT IT5490872A patent/IT974215B/it active
-
1973
- 1973-01-18 JP JP743473A patent/JPS504584A/ja active Pending
- 1973-01-23 FR FR7302244A patent/FR2198247B1/fr not_active Expired
- 1973-05-17 DE DE19732325017 patent/DE2325017A1/de active Pending
- 1973-06-20 GB GB5874172A patent/GB1439140A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2325017A1 (de) | 1974-03-07 |
| FR2198247B1 (fr) | 1977-04-29 |
| JPS504584A (fr) | 1975-01-17 |
| GB1439140A (en) | 1976-06-09 |
| FR2198247A1 (fr) | 1974-03-29 |
| NL7215663A (fr) | 1974-03-04 |
| CA972788A (en) | 1975-08-12 |
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