GB750374A - A plate-type protective device for flame-proof casings of electrical apparatus - Google Patents

A plate-type protective device for flame-proof casings of electrical apparatus

Info

Publication number
GB750374A
GB750374A GB2977/54A GB297754A GB750374A GB 750374 A GB750374 A GB 750374A GB 2977/54 A GB2977/54 A GB 2977/54A GB 297754 A GB297754 A GB 297754A GB 750374 A GB750374 A GB 750374A
Authority
GB
United Kingdom
Prior art keywords
flame
plate
protective device
electrical apparatus
type protective
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
GB2977/54A
Other languages
English (en)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB750374A publication Critical patent/GB750374A/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
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/042—Explosion-proof cases
    • H01H9/043—Explosion-proof cases with pressure-relief devices

Landscapes

  • Feeding And Controlling Fuel (AREA)
GB2977/54A 1953-02-06 1954-02-01 A plate-type protective device for flame-proof casings of electrical apparatus Expired GB750374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE750374X 1953-02-06

Publications (1)

Publication Number Publication Date
GB750374A true GB750374A (en) 1956-06-13

Family

ID=6650093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2977/54A Expired GB750374A (en) 1953-02-06 1954-02-01 A plate-type protective device for flame-proof casings of electrical apparatus

Country Status (3)

Country Link
BE (1) BE526254A (enrdf_load_html_response)
GB (1) GB750374A (enrdf_load_html_response)
NL (1) NL184696C (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252671A (en) * 1991-02-07 1992-08-12 Long & Crawford Limited High power switching arrangement
WO2015173046A1 (en) * 2014-05-12 2015-11-19 Tyco Electronics Austria Gmbh Switch element for use in a potentially explosive area

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252671A (en) * 1991-02-07 1992-08-12 Long & Crawford Limited High power switching arrangement
GB2252671B (en) * 1991-02-07 1994-08-03 Long & Crawford Limited High power switching arrangement
WO2015173046A1 (en) * 2014-05-12 2015-11-19 Tyco Electronics Austria Gmbh Switch element for use in a potentially explosive area
CN106463288A (zh) * 2014-05-12 2017-02-22 泰科电子奥地利有限责任公司 在潜在爆炸区域中使用的开关元件
US10283286B2 (en) 2014-05-12 2019-05-07 Tyco Electronics Austria Gmbh Switch element with an opening for use in a potentially explosive area
CN112185728A (zh) * 2014-05-12 2021-01-05 泰科电子奥地利有限责任公司 在潜在爆炸区域中使用的开关元件

Also Published As

Publication number Publication date
BE526254A (enrdf_load_html_response)
NL184696C (nl)

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