EP0753703A3 - Cowl - Google Patents

Cowl Download PDF

Info

Publication number
EP0753703A3
EP0753703A3 EP96305152A EP96305152A EP0753703A3 EP 0753703 A3 EP0753703 A3 EP 0753703A3 EP 96305152 A EP96305152 A EP 96305152A EP 96305152 A EP96305152 A EP 96305152A EP 0753703 A3 EP0753703 A3 EP 0753703A3
Authority
EP
European Patent Office
Prior art keywords
disc
chimney
flue
cowl
opening
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.)
Granted
Application number
EP96305152A
Other languages
German (de)
French (fr)
Other versions
EP0753703B1 (en
EP0753703A2 (en
Inventor
Robert Hodgson
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.)
Individual
Original Assignee
Individual
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 GBGB9514174.3A external-priority patent/GB9514174D0/en
Application filed by Individual filed Critical Individual
Publication of EP0753703A2 publication Critical patent/EP0753703A2/en
Publication of EP0753703A3 publication Critical patent/EP0753703A3/en
Application granted granted Critical
Publication of EP0753703B1 publication Critical patent/EP0753703B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/08—Tops for chimneys or ventilating shafts; Terminals for flues with coaxial cones or louvres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/12—Devices for fastening the top or terminal to chimney, shaft, or flue

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Ventilation (AREA)
  • Chimneys And Flues (AREA)

Abstract

A cowl (30) has a first generally disc-shaped member (31) which extends across the opening of a chimney or flue in use and a second disc-shaped member (33) open at its centre and dished to form a shallow cone. The two discs are connected such that the vertical separation between the first and second discs is least at the central opening of the second disc and increases radially outwards. The space between the first and second members provides a venturi effect, airflow caused by wind from any quarter resulting in relatively reduced air pressure in the space above the centre opening in the second member encouraging smoke or flue gases to pass up the chimney or flue to be entrained in air passing across the centre opening between the two members. Provision (39) is made for firmly mounting the cowl to the distal end of the chimney. Because the vertical spacing between the first disc and the distal end of the chimney or flue is substantially less than the diameter of the first disc, the cowl has a generally squat appearance.
EP19960305152 1995-07-12 1996-07-12 Cowl Expired - Lifetime EP0753703B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9514174 1995-07-12
GBGB9514174.3A GB9514174D0 (en) 1995-07-12 1995-07-12 Cowl
GB9523483A GB2303202B (en) 1995-07-12 1995-11-16 Cowl
GB9523483 1995-11-16

Publications (3)

Publication Number Publication Date
EP0753703A2 EP0753703A2 (en) 1997-01-15
EP0753703A3 true EP0753703A3 (en) 1998-06-17
EP0753703B1 EP0753703B1 (en) 2003-05-14

Family

ID=26307375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960305152 Expired - Lifetime EP0753703B1 (en) 1995-07-12 1996-07-12 Cowl

Country Status (2)

Country Link
EP (1) EP0753703B1 (en)
DE (1) DE69628094T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796451B1 (en) * 1999-07-12 2001-09-07 T A Soc D Expl As EXTENSIBLE STATIC EXTRACTOR
FR2846073B1 (en) 2002-10-21 2005-01-14 Michel Zaniewski STATIC EXTRACTOR ANTI-FLUOR FOR SMOKE
CN102401442A (en) * 2011-11-25 2012-04-04 无锡市工业设备安装有限公司 Inner umbrella-shaped energy-saving ventilation wind cap
CN103485518B (en) * 2012-06-13 2016-06-08 张琦 Pull out gas Wind discharging hat
US9869095B2 (en) 2014-08-21 2018-01-16 Solarcity Corporation Exhaust gas panel vent assembly for roof-mounted photovoltaic systems
US10323418B2 (en) 2014-10-10 2019-06-18 Solarcity Corporation Vent cover assembly for use with roof-mounted photovoltaic systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB885106A (en) * 1959-10-21 1961-12-20 Gas Council Improvements relating to flue terminals
FR2435672A1 (en) * 1978-09-06 1980-04-04 Grp Interet Eco Maison Natural draught roof ventilator - has cone shaped skirt on end of vertical external duct with flat topped S=shaped cap
BE901401A (en) * 1984-12-27 1985-04-16 Neefs Anthony Chimney flue draught improver - has one or more annular deflectors and streamlined top cap over central opening against rain and down draught
EP0182534A1 (en) * 1984-11-06 1986-05-28 Colt Building Products Limited Chimney cowls
EP0214087A1 (en) * 1985-08-09 1987-03-11 Roweco Chimney top for the draught control in a flue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB885106A (en) * 1959-10-21 1961-12-20 Gas Council Improvements relating to flue terminals
FR2435672A1 (en) * 1978-09-06 1980-04-04 Grp Interet Eco Maison Natural draught roof ventilator - has cone shaped skirt on end of vertical external duct with flat topped S=shaped cap
EP0182534A1 (en) * 1984-11-06 1986-05-28 Colt Building Products Limited Chimney cowls
BE901401A (en) * 1984-12-27 1985-04-16 Neefs Anthony Chimney flue draught improver - has one or more annular deflectors and streamlined top cap over central opening against rain and down draught
EP0214087A1 (en) * 1985-08-09 1987-03-11 Roweco Chimney top for the draught control in a flue

Also Published As

Publication number Publication date
EP0753703B1 (en) 2003-05-14
EP0753703A2 (en) 1997-01-15
DE69628094T2 (en) 2004-04-01
DE69628094D1 (en) 2003-06-18

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