ATE296996T1 - BALANCED VENTILATION OPENING - Google Patents

BALANCED VENTILATION OPENING

Info

Publication number
ATE296996T1
ATE296996T1 AT98309332T AT98309332T ATE296996T1 AT E296996 T1 ATE296996 T1 AT E296996T1 AT 98309332 T AT98309332 T AT 98309332T AT 98309332 T AT98309332 T AT 98309332T AT E296996 T1 ATE296996 T1 AT E296996T1
Authority
AT
Austria
Prior art keywords
vent
cover
aperture
vent passageway
exit
Prior art date
Application number
AT98309332T
Other languages
German (de)
Inventor
Colin Richard Wilson
Nicholas Simon Holden-Brown
Frank Graham Marshall
Original Assignee
Colt Internat Licensing 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 Colt Internat Licensing Ltd filed Critical Colt Internat Licensing Ltd
Application granted granted Critical
Publication of ATE296996T1 publication Critical patent/ATE296996T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Air-Flow Control Members (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Gas Separation By Absorption (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Glass Compositions (AREA)

Abstract

A vent comprises a duct (16) defining a vent passageway having a vent passageway exit and a vent cover (24) movable between a first aperture position and a second aperture position in which the vent passageway exit is fully covered and is not fully covered, respectively. There is an aperture (140) in a duct side wall which is closed when the vent covers (24) is in the first operative position and open to allow air to pass to or from the vent passageway through the aperture when the vent cover (24) is in a third operative position in which the vent passageway exit is also fully covered. The vent cover (24) may be a second vent cover, which are interlinked so as to be constrained to move together, either towards each other to cover the vent passageway exit or away from each other to uncover the vent passageway exit. In this latter embodiment the operative is optional. <IMAGE>
AT98309332T 1997-11-27 1998-11-13 BALANCED VENTILATION OPENING ATE296996T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9725131.8A GB9725131D0 (en) 1997-11-27 1997-11-27 A vent

Publications (1)

Publication Number Publication Date
ATE296996T1 true ATE296996T1 (en) 2005-06-15

Family

ID=10822754

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98309332T ATE296996T1 (en) 1997-11-27 1998-11-13 BALANCED VENTILATION OPENING

Country Status (4)

Country Link
EP (1) EP0919778B1 (en)
AT (1) ATE296996T1 (en)
DE (1) DE69830377T2 (en)
GB (1) GB9725131D0 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850793A (en) * 1930-09-12 1932-03-22 Drouve Co G Ventilator
US2895399A (en) * 1955-07-06 1959-07-21 Colt Ventilation Ltd Ventilators
GB1149958A (en) * 1966-10-28 1969-04-23 Lenscrete Ltd Improvements in or relating to ventilators
DE4403633C1 (en) * 1994-02-05 1995-03-02 Eberspaecher J Combined smoke- and heat-outlet and also ventilation device

Also Published As

Publication number Publication date
DE69830377T2 (en) 2006-01-26
DE69830377D1 (en) 2005-07-07
EP0919778A2 (en) 1999-06-02
GB9725131D0 (en) 1998-01-28
EP0919778A3 (en) 2002-09-11
EP0919778B1 (en) 2005-06-01

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties