AU7638181A - Improvements relating to ventilators - Google Patents
Improvements relating to ventilatorsInfo
- Publication number
- AU7638181A AU7638181A AU76381/81A AU7638181A AU7638181A AU 7638181 A AU7638181 A AU 7638181A AU 76381/81 A AU76381/81 A AU 76381/81A AU 7638181 A AU7638181 A AU 7638181A AU 7638181 A AU7638181 A AU 7638181A
- Authority
- AU
- Australia
- Prior art keywords
- shutter
- fan
- wind
- windshield
- closes
- 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
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)
- Air-Conditioning For Vehicles (AREA)
- Air-Flow Control Members (AREA)
Abstract
A powered, direct discharge ventilator comprises a base (B) having an extraction fan duct defined by a cylindrical wall portion (11) enclosing a fan impeller (not shown) of a fan (K) mounted on the base. A shallow windshield (D) shelters a non-return shutter (S) which closes the extraction fan duct when the fan is not operating. The shutter (S) is hinged on a pair of arms (H) to float up on the discharging airstream to take up the position shown chain-dotted in Fig. 1 when the fan is operated. When the fan is stopped, the shutter (S) closes gravitationally. To assist in holding the shutter (S) closed under high wind conditions, a wind deflector (W), carried by a bird-guard (G), directs the wind in a downwardly directed stream onto the top of the shutter (S). Where a much higher windshield is used, the wind deflector acts in a similar manner to prevent any reduction of pressure within the windshield due to the <<wind-over effect>> lifting the non-return shutter.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8033414 | 1980-10-16 | ||
GB8033414 | 1980-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU7638181A true AU7638181A (en) | 1982-04-22 |
AU545302B2 AU545302B2 (en) | 1985-07-11 |
Family
ID=10516715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU76381/81A Ceased AU545302B2 (en) | 1980-10-16 | 1981-10-15 | Improvements relating to ventilators |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0050488B1 (en) |
AT (1) | ATE7956T1 (en) |
AU (1) | AU545302B2 (en) |
DE (1) | DE3164215D1 (en) |
NZ (1) | NZ198656A (en) |
ZA (1) | ZA817088B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114831028A (en) * | 2022-04-22 | 2022-08-02 | 扬州大学 | Breeding device convenient to ventilate |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU576778B2 (en) * | 1983-08-26 | 1988-09-08 | Michele Young | Ventilator |
GB2203232B (en) * | 1986-11-13 | 1991-01-16 | Colt Int Ltd | Improvements relating to ventilators |
CN108426336B (en) * | 2018-05-31 | 2023-09-29 | 深圳市万居科技股份有限公司 | Dual-purpose exhaust cap |
CN108626834B (en) * | 2018-05-31 | 2023-09-29 | 深圳市万居科技股份有限公司 | Multipurpose exhaust cap |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2492242A (en) * | 1943-08-28 | 1949-12-27 | James B Shaver | Ventilating apparatus |
GB1061188A (en) * | 1964-04-13 | 1967-03-08 | Colt Ventilation & Heating Ltd | Improvements in or relating to ventilators |
GB1151191A (en) * | 1965-05-19 | 1969-05-07 | Colt Ventilation & Heating Ltd | Improvements in or relating to Ventilators |
-
1981
- 1981-10-14 ZA ZA817088A patent/ZA817088B/en unknown
- 1981-10-15 NZ NZ198656A patent/NZ198656A/en unknown
- 1981-10-15 AU AU76381/81A patent/AU545302B2/en not_active Ceased
- 1981-10-16 AT AT81304827T patent/ATE7956T1/en not_active IP Right Cessation
- 1981-10-16 EP EP81304827A patent/EP0050488B1/en not_active Expired
- 1981-10-16 DE DE8181304827T patent/DE3164215D1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114831028A (en) * | 2022-04-22 | 2022-08-02 | 扬州大学 | Breeding device convenient to ventilate |
CN114831028B (en) * | 2022-04-22 | 2023-09-01 | 扬州大学 | Breeding device convenient to ventilate |
Also Published As
Publication number | Publication date |
---|---|
ZA817088B (en) | 1982-09-29 |
EP0050488B1 (en) | 1984-06-13 |
ATE7956T1 (en) | 1984-06-15 |
EP0050488A2 (en) | 1982-04-28 |
EP0050488A3 (en) | 1982-09-08 |
AU545302B2 (en) | 1985-07-11 |
DE3164215D1 (en) | 1984-07-19 |
NZ198656A (en) | 1985-01-31 |
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