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CA946887A - Mechanical safety interlock for covers of explosionproof electrical housing - Google Patents

Mechanical safety interlock for covers of explosionproof electrical housing

Info

Publication number
CA946887A
CA946887A CA169,092A CA169092A CA946887A CA 946887 A CA946887 A CA 946887A CA 169092 A CA169092 A CA 169092A CA 946887 A CA946887 A CA 946887A
Authority
CA
Canada
Prior art keywords
covers
safety interlock
mechanical safety
electrical housing
explosionproof
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
CA169,092A
Other versions
CA169092S (en
Inventor
Arthur I. Appleton
Robert J. Pastorel
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.)
Appleton Electric LLC
Original Assignee
Appleton Electric LLC
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 Appleton Electric LLC filed Critical Appleton Electric LLC
Application granted granted Critical
Publication of CA946887A publication Critical patent/CA946887A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • 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
    • H01H9/045—Explosion-proof cases with interlocking mechanism between cover and operating mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
CA169,092A 1972-06-02 1973-04-18 Mechanical safety interlock for covers of explosionproof electrical housing Expired CA946887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25898372A 1972-06-02 1972-06-02

Publications (1)

Publication Number Publication Date
CA946887A true CA946887A (en) 1974-05-07

Family

ID=22982989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA169,092A Expired CA946887A (en) 1972-06-02 1973-04-18 Mechanical safety interlock for covers of explosionproof electrical housing

Country Status (2)

Country Link
US (1) US3743800A (en)
CA (1) CA946887A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031340A (en) * 1975-11-07 1977-06-21 Appleton Electric Company Defeater for mechanical safety interlock for covers of explosion-proof electrical housing
FR2652443A1 (en) * 1989-09-26 1991-03-29 Inst Vzryvozaschischennogo ANTIDEFLAGRANT ELECTRICAL APPARATUS.
US5785195A (en) * 1996-11-07 1998-07-28 The Clorox Company Conically threaded closure system
WO2012122324A1 (en) 2011-03-10 2012-09-13 Ericson Manufacturing Company Electrical enclosure
US9366058B2 (en) 2013-09-13 2016-06-14 Cooper Technologies Company Fastening devices for explosion-proof enclosures
US9917428B2 (en) 2016-03-17 2018-03-13 Spectrum Camera Solutions, Llc Multiple explosion proof chambers device and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971990A (en) * 1931-06-09 1934-08-28 Albert & J M Anderson Mfg Co Electrical apparatus
US2156572A (en) * 1936-05-27 1939-05-02 Crouse Hinds Co Enclosed housing for electrical switches
US2194549A (en) * 1939-04-03 1940-03-26 Crouse Hinds Co Explosionproof switch housing
US2284613A (en) * 1940-01-05 1942-05-26 Westinghouse Electric & Mfg Co Explosionproof circuit interrupting apparatus
US3016431A (en) * 1960-07-15 1962-01-09 Pyle National Co Explosion proof enclosure for motor starters and circuit breakers
US3582535A (en) * 1970-03-09 1971-06-01 Arthur I Appleton Conically mating explosionproof housing and cover assembly

Also Published As

Publication number Publication date
US3743800A (en) 1973-07-03

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