NL7901968A - Luchtverversingstoestel. - Google Patents

Luchtverversingstoestel.

Info

Publication number
NL7901968A
NL7901968A NL7901968A NL7901968A NL7901968A NL 7901968 A NL7901968 A NL 7901968A NL 7901968 A NL7901968 A NL 7901968A NL 7901968 A NL7901968 A NL 7901968A NL 7901968 A NL7901968 A NL 7901968A
Authority
NL
Netherlands
Prior art keywords
replacement unit
air replacement
air
unit
replacement
Prior art date
Application number
NL7901968A
Other languages
English (en)
Original Assignee
Pelsue T A Co
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 Pelsue T A Co filed Critical Pelsue T A Co
Publication of NL7901968A publication Critical patent/NL7901968A/nl

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/08—Ventilation of sewers

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Cleaning In General (AREA)
NL7901968A 1978-03-13 1979-03-13 Luchtverversingstoestel. NL7901968A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/886,048 US4285269A (en) 1978-03-13 1978-03-13 Portable ventilating apparatus for purging underground installations and the like

Publications (1)

Publication Number Publication Date
NL7901968A true NL7901968A (nl) 1979-09-17

Family

ID=25388264

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7901968A NL7901968A (nl) 1978-03-13 1979-03-13 Luchtverversingstoestel.

Country Status (8)

Country Link
US (1) US4285269A (nl)
JP (1) JPS54127145A (nl)
AU (1) AU4505479A (nl)
CA (1) CA1110904A (nl)
DE (1) DE2909004A1 (nl)
NL (1) NL7901968A (nl)
NZ (1) NZ189895A (nl)
SE (1) SE7902169L (nl)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662268A (en) * 1985-10-15 1987-05-05 T.A. Pelsue Company Combination purging and ventilating blower
US4982653A (en) * 1987-07-10 1991-01-08 Saddle Vent, Inc. Method and apparatus for ventilating an enclosure accessed by a manhole
US4794956A (en) * 1987-07-10 1989-01-03 Saddle Vent Inc. Air conduit for manhole
US6168514B1 (en) * 1998-09-23 2001-01-02 Arletha Heatley Apparatus for evacuating sewer gas from a sewer system
US6889948B2 (en) 2001-12-06 2005-05-10 Malcom R. Melancon Flange for connecting fan to manway
US6843274B1 (en) * 2003-06-25 2005-01-18 Air Systems International, Inc. Electrically conductive confined space ventilator conduit formed of conductive polymer, electrical grounding circuit for ventilation system using same, and methods of using and forming same
US10214345B1 (en) * 2011-12-12 2019-02-26 Cameron Gordon Howie Entryway protective collar
JP6208446B2 (ja) * 2013-03-27 2017-10-04 東京都下水道サービス株式会社 送風機支持体および換気システム
CN103899345A (zh) * 2013-12-04 2014-07-02 国家电网公司 一种便携式换风井盖
USD754875S1 (en) * 2014-07-17 2016-04-26 Baziuk Holding Ltd Cylindrical barrier for shoring an excavated hole
US9784650B1 (en) 2015-05-21 2017-10-10 David L. Neathery Sewer gas sampling and analyzing devices and methods
US11060754B2 (en) 2015-06-05 2021-07-13 Novinium, Inc. Ventilation system for manhole vault
US10962253B2 (en) * 2015-06-05 2021-03-30 Novinium, Inc. Systems for circulating air inside a manhole vault
EP3436372B1 (en) 2016-03-31 2024-01-03 Novinium, LLC Smart system for manhole event suppression system
RU184748U1 (ru) * 2018-07-12 2018-11-07 Частное Акционерное Общество "Вентиляционные системы" Осевой вентилятор
US11739640B2 (en) * 2018-12-03 2023-08-29 Novinium, Llc Hose for providing an emergency fresh air supply to an underground vault after an explosion
CN112575705A (zh) * 2020-12-04 2021-03-30 国网山东省电力公司临沂供电公司 一种井下作业通风警示一体装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US592468A (en) * 1897-10-26 harris
US73957A (en) * 1868-02-04 S amu el d a b ling
US2291546A (en) * 1940-07-26 1942-07-28 Glenn C George Precooling device for refrigerator cars
FR1120261A (fr) * 1955-01-22 1956-07-03 Perfectionnements aux installations de ventilateurs notamment pour les mines
US3610524A (en) * 1969-11-03 1971-10-05 Polaroid Corp Manhole ventilating and heating system
US3943329A (en) * 1974-05-17 1976-03-09 Clairol Incorporated Hair dryer with safety guard air outlet nozzle

Also Published As

Publication number Publication date
DE2909004A1 (de) 1979-09-27
SE7902169L (sv) 1979-09-14
CA1110904A (en) 1981-10-20
NZ189895A (en) 1982-05-31
US4285269A (en) 1981-08-25
AU4505479A (en) 1979-09-20
JPS54127145A (en) 1979-10-02

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Legal Events

Date Code Title Description
BV The patent application has lapsed