GB1409198A - Electromagnetic actuator with hydraulic time delay means - Google Patents
Electromagnetic actuator with hydraulic time delay meansInfo
- Publication number
- GB1409198A GB1409198A GB1707173A GB1707173A GB1409198A GB 1409198 A GB1409198 A GB 1409198A GB 1707173 A GB1707173 A GB 1707173A GB 1707173 A GB1707173 A GB 1707173A GB 1409198 A GB1409198 A GB 1409198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- valve
- spring
- time delay
- tripping
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
- H01H71/345—Electromagnetic mechanisms having two or more armatures controlled by a common winding having a delayed movable core and a movable armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Breakers (AREA)
Abstract
1409198 Electromagnetic switch actuation or tripping HEINEMANN ELECTRIC CO 10 April 1973 [26 April 1972] 17071/73 Heading H1N An actuator for tripping a circuit-breaker of the type shown in Fig. 1 in which a latch 27 is released on pivotal movement of an armature 31 has an operating coil 40 surrounding a tube 41 containing a retarding fluid and a magnetic core 42 which has a valve 51, 52 in a bore 50 in the core which also has a resilient valve stop member 55 located in position by resilient engagement with the wall surface of the bore. The valve is a ball 51 which normally rests on a valve seat 52 out of engagement with the stop spring 55. The latter may be tapered with its top end longer than the bore 50 so that after insertion by a tool (not shown) on which the spring may be wound it is held in the bore as in Fig. 2. In an alternative arrangement the spring may be bent in the middle so that its ends and middle engage the walls of the bore (Fig. 4, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24773272A | 1972-04-26 | 1972-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1409198A true GB1409198A (en) | 1975-10-08 |
Family
ID=22936131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1707173A Expired GB1409198A (en) | 1972-04-26 | 1973-04-10 | Electromagnetic actuator with hydraulic time delay means |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3729696A (en) |
| CA (1) | CA970804A (en) |
| DE (1) | DE2317433A1 (en) |
| FR (1) | FR2181875B1 (en) |
| GB (1) | GB1409198A (en) |
| ZA (1) | ZA732562B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4297554A (en) * | 1980-01-24 | 1981-10-27 | G & W Electric Specialty Company | Time delay switch mechanism |
| US4918413A (en) * | 1989-02-22 | 1990-04-17 | Heinemann Electric Company | Clamp for captive tube in electromagnetic circuit breakers |
| US4963847A (en) * | 1989-04-11 | 1990-10-16 | Heinemann Electric Company | Circuit breaker with transparent tube magnetic core holder |
| JP2675173B2 (en) * | 1990-03-02 | 1997-11-12 | 株式会社日立製作所 | Electronic device cooling system |
| EP0633589B1 (en) * | 1993-07-06 | 1997-10-01 | Circuit Breaker Industries Limited | Circuit breaker mechanism |
| EP0948020A3 (en) * | 1998-04-02 | 2000-06-07 | Circuit Breaker Industries Limited | A trip unit for an hydraulic/magnetic circuit breaker |
| US20070290776A1 (en) * | 2006-06-17 | 2007-12-20 | Tim Hasenour | Time delay relay |
| US8136890B2 (en) * | 2008-04-02 | 2012-03-20 | International Safety & Development, Llc | Shock proof devices and methods |
| WO2015134916A1 (en) | 2014-03-07 | 2015-09-11 | International Safety Holdings, LLC | Systems and methods for modular shock proof electrical outlets |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1904759A (en) * | 1931-05-25 | 1933-04-18 | Trico Products Corp | Fluid pressure horn |
| US2200109A (en) * | 1934-05-23 | 1940-05-07 | Heinemann Circuit Breaker Comp | Current limiter |
| GB507487A (en) * | 1937-12-13 | 1939-06-13 | Rene Tondeur | Improvements in spring urged non-return valves and the manufacture thereof |
| US2519055A (en) * | 1946-08-02 | 1950-08-15 | Mcgraw Electric Co | Circuit interrupter |
| US2694789A (en) * | 1950-12-07 | 1954-11-16 | Heinemann Electric Co | Delayed-action magnetic circuit breaker |
| DE884213C (en) * | 1951-11-07 | 1953-08-24 | Heinrich Remmer | Detachable connection contact pair for collector batteries |
| US3183931A (en) * | 1963-02-09 | 1965-05-18 | Dehavilland Aircraft Canada | Charging valve for oleo pneumatic aircraft landing struts |
| US3308847A (en) * | 1964-01-31 | 1967-03-14 | Croname Inc | Solenoid-operated, shut-off and regulator valve |
| US3441052A (en) * | 1967-05-10 | 1969-04-29 | William H Schilling | Automatic flow-responsive valve |
-
1972
- 1972-04-26 US US00247732A patent/US3729696A/en not_active Expired - Lifetime
-
1973
- 1973-03-01 CA CA164,982A patent/CA970804A/en not_active Expired
- 1973-04-06 DE DE2317433A patent/DE2317433A1/en active Pending
- 1973-04-10 GB GB1707173A patent/GB1409198A/en not_active Expired
- 1973-04-10 FR FR7312944A patent/FR2181875B1/fr not_active Expired
- 1973-04-13 ZA ZA732562A patent/ZA732562B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2317433A1 (en) | 1973-11-15 |
| ZA732562B (en) | 1974-03-27 |
| US3729696A (en) | 1973-04-24 |
| CA970804A (en) | 1975-07-08 |
| FR2181875A1 (en) | 1973-12-07 |
| FR2181875B1 (en) | 1977-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |