GB2202041B - Ventilation units - Google Patents

Ventilation units

Info

Publication number
GB2202041B
GB2202041B GB8701402A GB8701402A GB2202041B GB 2202041 B GB2202041 B GB 2202041B GB 8701402 A GB8701402 A GB 8701402A GB 8701402 A GB8701402 A GB 8701402A GB 2202041 B GB2202041 B GB 2202041B
Authority
GB
United Kingdom
Prior art keywords
ventilation units
ventilation
units
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
GB8701402A
Other versions
GB8701402D0 (en
GB2202041A (en
Inventor
David James Millington
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.)
GRADWOOD Ltd
Original Assignee
GRADWOOD 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 GRADWOOD Ltd filed Critical GRADWOOD Ltd
Priority to GB8701402A priority Critical patent/GB2202041B/en
Publication of GB8701402D0 publication Critical patent/GB8701402D0/en
Publication of GB2202041A publication Critical patent/GB2202041A/en
Application granted granted Critical
Publication of GB2202041B publication Critical patent/GB2202041B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
GB8701402A 1987-01-22 1987-01-22 Ventilation units Expired - Fee Related GB2202041B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8701402A GB2202041B (en) 1987-01-22 1987-01-22 Ventilation units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8701402A GB2202041B (en) 1987-01-22 1987-01-22 Ventilation units

Publications (3)

Publication Number Publication Date
GB8701402D0 GB8701402D0 (en) 1987-02-25
GB2202041A GB2202041A (en) 1988-09-14
GB2202041B true GB2202041B (en) 1991-01-16

Family

ID=10611061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8701402A Expired - Fee Related GB2202041B (en) 1987-01-22 1987-01-22 Ventilation units

Country Status (1)

Country Link
GB (1) GB2202041B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291474B (en) * 1994-07-16 1997-12-17 Environmental Seals Ltd Fire proofed housings for extractor fans
DE102012100628A1 (en) * 2012-01-25 2013-07-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Paddle wheel with intumescent coating
GB201704403D0 (en) * 2017-03-20 2017-05-03 Gibbons Martin Extractor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886506A (en) * 1959-03-23 1962-01-10 Ernest Crabb Ventilator insulation
GB1342778A (en) * 1970-06-20 1974-01-03 Trox Gmbh Geb Closure device for fire panels in ventilation and air-conditioning plants
GB1368424A (en) * 1970-09-10 1974-09-25 Nat Res Dev Fireresistant structures
GB1429203A (en) * 1973-10-22 1976-03-24 Temperature Ltd Air conditioning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886506A (en) * 1959-03-23 1962-01-10 Ernest Crabb Ventilator insulation
GB1342778A (en) * 1970-06-20 1974-01-03 Trox Gmbh Geb Closure device for fire panels in ventilation and air-conditioning plants
GB1368424A (en) * 1970-09-10 1974-09-25 Nat Res Dev Fireresistant structures
GB1429203A (en) * 1973-10-22 1976-03-24 Temperature Ltd Air conditioning

Also Published As

Publication number Publication date
GB8701402D0 (en) 1987-02-25
GB2202041A (en) 1988-09-14

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Legal Events

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

Effective date: 19930122