GB1278050A - Flameproof enclosures - Google Patents

Flameproof enclosures

Info

Publication number
GB1278050A
GB1278050A GB3328968A GB3328968A GB1278050A GB 1278050 A GB1278050 A GB 1278050A GB 3328968 A GB3328968 A GB 3328968A GB 3328968 A GB3328968 A GB 3328968A GB 1278050 A GB1278050 A GB 1278050A
Authority
GB
United Kingdom
Prior art keywords
july
apertures
channel section
flame
section members
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
GB3328968A
Inventor
Sydney Hubert Newton
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.)
Lucas Support Services Ltd
Original Assignee
Rotax 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
Priority claimed from DE19681703802 external-priority patent/DE1703802C3/en
Priority to GB3328968A priority Critical patent/GB1278050A/en
Priority to DE19681703802 priority patent/DE1703802C3/en
Application filed by Rotax Ltd filed Critical Rotax Ltd
Priority to CH1036269A priority patent/CH493740A/en
Priority to NL6910551A priority patent/NL163858C/en
Priority to FR6923324A priority patent/FR2012843A1/fr
Priority to GB3476869A priority patent/GB1271677A/en
Priority to DE19696927378 priority patent/DE6927378U/en
Priority to DE19691935147 priority patent/DE1935147A1/en
Priority to BE735993D priority patent/BE735993A/xx
Priority to FR6923850A priority patent/FR2012893A1/fr
Publication of GB1278050A publication Critical patent/GB1278050A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Casings For Electric Apparatus (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

1278050 Flame proof enclosures ROTAX Ltd 1 July 1969 [12 July 1968] 33289/68 Heading ASA [Also in Division H1] In a flame proof enclosure for an electric switch, apertures 11 Fig. 1 in the casing wall 1 permitting internal pressure to dissipate are covered internally or externally by a continuous strip formed into channel section members 12, providing narrow spaces of large surface area in which the flame is extinguished. Other apertures 13 in the end wall are covered by individual channel section members 14.
GB3328968A 1968-07-12 1968-07-12 Flameproof enclosures Expired GB1278050A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB3328968A GB1278050A (en) 1968-07-12 1968-07-12 Flameproof enclosures
DE19681703802 DE1703802C3 (en) 1968-07-12 Gear pump
CH1036269A CH493740A (en) 1968-07-12 1969-07-04 Gear pump
NL6910551A NL163858C (en) 1968-07-12 1969-07-09 GEAR PUMP.
FR6923324A FR2012843A1 (en) 1968-07-12 1969-07-09
GB3476869A GB1271677A (en) 1968-07-12 1969-07-10 Gear pumps
FR6923850A FR2012893A1 (en) 1968-07-12 1969-07-11
DE19696927378 DE6927378U (en) 1968-07-12 1969-07-11 FLAME RESISTANT HOUSING.
DE19691935147 DE1935147A1 (en) 1968-07-12 1969-07-11 Flameproof housing
BE735993D BE735993A (en) 1968-07-12 1969-07-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3328968A GB1278050A (en) 1968-07-12 1968-07-12 Flameproof enclosures
DE19681703802 DE1703802C3 (en) 1968-07-12 Gear pump

Publications (1)

Publication Number Publication Date
GB1278050A true GB1278050A (en) 1972-06-14

Family

ID=25754677

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3328968A Expired GB1278050A (en) 1968-07-12 1968-07-12 Flameproof enclosures
GB3476869A Expired GB1271677A (en) 1968-07-12 1969-07-10 Gear pumps

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3476869A Expired GB1271677A (en) 1968-07-12 1969-07-10 Gear pumps

Country Status (6)

Country Link
BE (1) BE735993A (en)
CH (1) CH493740A (en)
DE (1) DE1935147A1 (en)
FR (2) FR2012843A1 (en)
GB (2) GB1278050A (en)
NL (1) NL163858C (en)

Cited By (1)

* 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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61108884A (en) * 1984-10-31 1986-05-27 Aisin Seiki Co Ltd Trochoid oil pump
JPS6441686A (en) * 1987-08-06 1989-02-13 Giyuuji Negishi Trochoid pump
GB9014601D0 (en) * 1990-06-30 1990-08-22 Concentric Pumps Ltd Improvements relating to gerotor pumps
EP0619430B1 (en) * 1993-03-05 1997-07-23 Siegfried A. Dipl.-Ing. Eisenmann Internal gear pump for high rotary speed range
GB9400989D0 (en) * 1994-01-19 1994-03-16 Hobourn Automotive Ltd Improvements in or relating to pumps
JP3943826B2 (en) * 2000-11-09 2007-07-11 株式会社日立製作所 Oil pump
JP5681571B2 (en) * 2011-06-06 2015-03-11 株式会社山田製作所 Oil pump
DE102013226852A1 (en) 2013-12-20 2015-06-25 Volkswagen Aktiengesellschaft gear pump

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
GB2252671B (en) * 1991-02-07 1994-08-03 Long & Crawford Limited High power switching arrangement

Also Published As

Publication number Publication date
CH493740A (en) 1970-07-15
GB1271677A (en) 1972-04-26
FR2012843A1 (en) 1970-03-27
FR2012893A1 (en) 1970-03-27
DE1935147A1 (en) 1970-01-15
NL6910551A (en) 1970-01-14
BE735993A (en) 1969-12-16
NL163858B (en) 1980-05-16
NL163858C (en) 1980-10-15
DE1703802B2 (en) 1977-01-27
DE1703802A1 (en) 1972-04-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee