GB1450723A - Electrical circuit breaker - Google Patents

Electrical circuit breaker

Info

Publication number
GB1450723A
GB1450723A GB4694873A GB4694873A GB1450723A GB 1450723 A GB1450723 A GB 1450723A GB 4694873 A GB4694873 A GB 4694873A GB 4694873 A GB4694873 A GB 4694873A GB 1450723 A GB1450723 A GB 1450723A
Authority
GB
United Kingdom
Prior art keywords
circuit breaker
housing
aperture
boss
groove
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
Application number
GB4694873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airpax Electronics Inc
Original Assignee
Airpax Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US00248406A priority Critical patent/US3780249A/en
Priority to FR7306051A priority patent/FR2181752B1/fr
Priority to JP48046817A priority patent/JPS4941862A/ja
Priority to JP48073216A priority patent/JPS4949166A/ja
Application filed by Airpax Electronics Inc filed Critical Airpax Electronics Inc
Priority to GB1889576A priority patent/GB1450724A/en
Priority to GB4694873A priority patent/GB1450723A/en
Publication of GB1450723A publication Critical patent/GB1450723A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/04—Cases; Covers
    • H01H21/08—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H01H2009/343—Venting arrangements for arc chutes with variable venting aperture function of arc chute internal pressure, e.g. resilient flap-valve or check-valve

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

1450723 Automatic circuit breakers AIRPAX ELECTRONICS Inc 8 Oct 1973 46948/73 Heading H1N A two-part phenolic housing 12 for an electromagnetic or thermal type circuit breaker is formed with a forward facing boss 20 with an opening through which the circuit breaker operating handle 22 extends, the handle being dust sealed in relation to the housing by means of a silicone rubber gasket 42 sandwiched between rigid supports 40, 44 the edges of which are located in a groove within the boss 20. An aperture 56 in the upper facing of the housing 12 communicates with an arcing chamber 58 and is covered by a movable resilient plastics flap 50 having a turned-over end 54 which is engaged within a groove 62 in a resiliently hinged manner so that the flap 50 normally rests in a closed position over the aperture 56 to prevent the entry of contaminants but is movable in response to a rise in pressure within the circuit breaker housing to release such pressure and any exhaust gases, &c. to atmosphere. Specification 1,450,724 is for a similar circuit breaker suitable for use in a potentially explosive atmosphere.
GB4694873A 1972-04-28 1973-10-08 Electrical circuit breaker Expired GB1450723A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00248406A US3780249A (en) 1972-04-28 1972-04-28 Dust seal high performance breaker
FR7306051A FR2181752B1 (en) 1972-04-28 1973-02-21
JP48046817A JPS4941862A (en) 1972-04-28 1973-04-26
JP48073216A JPS4949166A (en) 1972-04-28 1973-06-28
GB1889576A GB1450724A (en) 1972-04-28 1973-10-08 Electrical circuit breaker
GB4694873A GB1450723A (en) 1972-04-28 1973-10-08 Electrical circuit breaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24840672A 1972-04-28 1972-04-28
GB4694873A GB1450723A (en) 1972-04-28 1973-10-08 Electrical circuit breaker

Publications (1)

Publication Number Publication Date
GB1450723A true GB1450723A (en) 1976-09-29

Family

ID=26265937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4694873A Expired GB1450723A (en) 1972-04-28 1973-10-08 Electrical circuit breaker

Country Status (1)

Country Link
GB (1) GB1450723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964420A2 (en) * 1998-06-08 1999-12-15 Eaton Corporation Molded case circuit breaker with pressure release mechanism
EP1560239A1 (en) * 2004-02-02 2005-08-03 Signal Lux MDS S.r.l. Hermetically-sealed electric switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964420A2 (en) * 1998-06-08 1999-12-15 Eaton Corporation Molded case circuit breaker with pressure release mechanism
EP0964420A3 (en) * 1998-06-08 2000-07-19 Eaton Corporation Molded case circuit breaker with pressure release mechanism
EP1560239A1 (en) * 2004-02-02 2005-08-03 Signal Lux MDS S.r.l. Hermetically-sealed electric switch

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee