NL176213C - BREATHERING DEVICE WITH BUTTERFLY AND SEAL. - Google Patents

BREATHERING DEVICE WITH BUTTERFLY AND SEAL.

Info

Publication number
NL176213C
NL176213C NLAANVRAGE7812006,A NL7812006A NL176213C NL 176213 C NL176213 C NL 176213C NL 7812006 A NL7812006 A NL 7812006A NL 176213 C NL176213 C NL 176213C
Authority
NL
Netherlands
Prior art keywords
breathering
butterfly
seal
breathering device
Prior art date
Application number
NLAANVRAGE7812006,A
Other languages
Dutch (nl)
Other versions
NL7812006A (en
NL176213B (en
Original Assignee
Chalmers & Mitchell Ltd
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 Chalmers & Mitchell Ltd filed Critical Chalmers & Mitchell Ltd
Publication of NL7812006A publication Critical patent/NL7812006A/en
Publication of NL176213B publication Critical patent/NL176213B/en
Application granted granted Critical
Publication of NL176213C publication Critical patent/NL176213C/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Spark Plugs (AREA)
  • Casings For Electric Apparatus (AREA)
  • Filtering Materials (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
NLAANVRAGE7812006,A 1977-12-09 1978-12-08 BREATHERING DEVICE WITH BUTTERFLY AND SEAL. NL176213C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5130777 1977-12-09

Publications (3)

Publication Number Publication Date
NL7812006A NL7812006A (en) 1979-06-12
NL176213B NL176213B (en) 1984-10-01
NL176213C true NL176213C (en) 1985-03-01

Family

ID=10459484

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7812006,A NL176213C (en) 1977-12-09 1978-12-08 BREATHERING DEVICE WITH BUTTERFLY AND SEAL.

Country Status (13)

Country Link
JP (1) JPS54116104A (en)
AU (1) AU542223B2 (en)
BE (1) BE872614A (en)
CA (1) CA1105603A (en)
DE (1) DE2852113B2 (en)
DK (1) DK528778A (en)
ES (1) ES475810A1 (en)
FR (1) FR2411538A1 (en)
IT (1) IT1111094B (en)
NL (1) NL176213C (en)
NO (1) NO148135C (en)
SE (1) SE432042B (en)
ZA (1) ZA786698B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58394U (en) * 1981-06-25 1983-01-05 株式会社東芝 tank type lightning arrester
DE3311252A1 (en) * 1983-03-28 1984-10-04 Joachim Dr.-Ing. 8070 Ingolstadt Hess Plastic housing
US4600114A (en) * 1983-10-03 1986-07-15 Dabich Robert M Thermo expansion compensator
DE3412274A1 (en) * 1984-04-02 1985-10-10 Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest CLOSED HOUSING FOR RECEIVING ELECTRICAL APPARATUS
DE102010015674A1 (en) * 2010-04-21 2011-10-27 Wabco Gmbh A housing with a deformation area for pressure equalization and an arrangement of a sealing element in the housing
CN110146656B (en) * 2019-06-05 2020-06-05 无锡格林通安全装备有限公司 Explosion-proof breathing device of gas detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1041449B (en) * 1954-12-20 1958-10-23 Westinghouse Electric Corp Explosion-proof container made of metal, in particular housing for firedamp protection
AU6045565A (en) * 1965-06-22 1966-12-22 Jennings Radio Manufacturing Corporation Expansible vacuum envelope for electrical devices
US3675007A (en) * 1969-10-20 1972-07-04 Appleton Electric Co Explosion proof lighting fixture
FR2320026A1 (en) * 1975-08-01 1977-02-25 Cemse Protective envelope for electric device - is used in explosive environment and comprises two cylindrical elements sealed together

Also Published As

Publication number Publication date
CA1105603A (en) 1981-07-21
NO148135C (en) 1983-08-10
DE2852113B2 (en) 1981-07-16
FR2411538A1 (en) 1979-07-06
DE2852113A1 (en) 1979-06-13
SE7812390L (en) 1979-06-10
FR2411538B1 (en) 1982-06-25
AU4212878A (en) 1979-06-14
BE872614A (en) 1979-03-30
IT7852214A0 (en) 1978-12-06
ES475810A1 (en) 1979-11-01
NL7812006A (en) 1979-06-12
ZA786698B (en) 1979-10-31
DK528778A (en) 1979-06-10
AU542223B2 (en) 1985-02-14
NO783974L (en) 1979-06-12
SE432042B (en) 1984-03-12
JPS54116104A (en) 1979-09-10
NO148135B (en) 1983-05-02
NL176213B (en) 1984-10-01
IT1111094B (en) 1986-01-13

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee