GB2249624B - Air duct safety damper - Google Patents

Air duct safety damper

Info

Publication number
GB2249624B
GB2249624B GB9024281A GB9024281A GB2249624B GB 2249624 B GB2249624 B GB 2249624B GB 9024281 A GB9024281 A GB 9024281A GB 9024281 A GB9024281 A GB 9024281A GB 2249624 B GB2249624 B GB 2249624B
Authority
GB
United Kingdom
Prior art keywords
air duct
safety damper
duct safety
damper
air
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 - Fee Related
Application number
GB9024281A
Other versions
GB2249624A (en
GB9024281D0 (en
Inventor
James Robert Tatum
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.)
N C A MANUFACTURING Ltd
Original Assignee
N C A MANUFACTURING 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 N C A MANUFACTURING Ltd filed Critical N C A MANUFACTURING Ltd
Priority to GB9024281A priority Critical patent/GB2249624B/en
Publication of GB9024281D0 publication Critical patent/GB9024281D0/en
Publication of GB2249624A publication Critical patent/GB2249624A/en
Application granted granted Critical
Publication of GB2249624B publication Critical patent/GB2249624B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • A62C2/14—Hinged dampers with two or more blades
    • A62C2/16—Hinged dampers with two or more blades multi-vane roll or fold-up type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
GB9024281A 1990-11-08 1990-11-08 Air duct safety damper Expired - Fee Related GB2249624B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9024281A GB2249624B (en) 1990-11-08 1990-11-08 Air duct safety damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9024281A GB2249624B (en) 1990-11-08 1990-11-08 Air duct safety damper

Publications (3)

Publication Number Publication Date
GB9024281D0 GB9024281D0 (en) 1990-12-19
GB2249624A GB2249624A (en) 1992-05-13
GB2249624B true GB2249624B (en) 1994-06-29

Family

ID=10685049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9024281A Expired - Fee Related GB2249624B (en) 1990-11-08 1990-11-08 Air duct safety damper

Country Status (1)

Country Link
GB (1) GB2249624B (en)

Also Published As

Publication number Publication date
GB2249624A (en) 1992-05-13
GB9024281D0 (en) 1990-12-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941108