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GB1425546A - Ventilators - Google Patents

Ventilators

Info

Publication number
GB1425546A
GB1425546A GB875174A GB875174A GB1425546A GB 1425546 A GB1425546 A GB 1425546A GB 875174 A GB875174 A GB 875174A GB 875174 A GB875174 A GB 875174A GB 1425546 A GB1425546 A GB 1425546A
Authority
GB
United Kingdom
Prior art keywords
struts
cover
base
impeller
motor
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
Application number
GB875174A
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.)
Technicair SA
Original Assignee
Technicair SA
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 Technicair SA filed Critical Technicair SA
Publication of GB1425546A publication Critical patent/GB1425546A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/02Roof ventilation
    • F24F7/025Roof 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Ventilation (AREA)

Abstract

1425546 Ventilators TECHNICAIR SA 26 Feb 1974 [9 March 1973] 8751/74 Heading F4V A roof ventilator comprises a centrifugal fan impeller 1 driven by a coaxial electric motor 3, a cover 8 which supports the motor 3 and which is supported above a base 4 having an air inlet 5 for the impeller 1 by a support structure 10 having struts each extending between points on the base 4 and cover 8 which points are offset angularly about the axis of impeller 1. In the form shown, the structure 10 includes four inverted V-shaped members each fixed at 12 to the base 4 and at 13 to the cover 8. A protective cage 15 for the impeller 1 of trellis-work or expanded metal is supported by structure 10. The motor 3 includes a rotor 2 and a stator 7. In another embodiment (Figs. 3, 4), the struts are defined by a single bent metal rod or wire and some of the struts may be vertical. Resilient material may be located between the struts and the base 4 or cover 8.
GB875174A 1973-03-09 1974-02-26 Ventilators Expired GB1425546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH349673A CH562996A5 (en) 1973-03-09 1973-03-09

Publications (1)

Publication Number Publication Date
GB1425546A true GB1425546A (en) 1976-02-18

Family

ID=4257245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB875174A Expired GB1425546A (en) 1973-03-09 1974-02-26 Ventilators

Country Status (9)

Country Link
AT (1) AT327455B (en)
BE (1) BE811367A (en)
CH (1) CH562996A5 (en)
DE (1) DE2407786A1 (en)
ES (1) ES201578Y (en)
FR (1) FR2220695B3 (en)
GB (1) GB1425546A (en)
IT (1) IT1005257B (en)
NL (1) NL7402885A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD147564B1 (en) * 1979-12-03 1983-05-25 Plastluefter & Anlagenbau Veb ENGINE MOUNTING FOR CIRCULAR WORKING MACHINES
FR2799530B1 (en) * 1999-10-08 2001-12-28 Michel Zaniewski AIR AND / OR FUME EXTRACTION APPARATUS HAVING A PROTECTIVE GRILLE

Also Published As

Publication number Publication date
DE2407786A1 (en) 1974-09-19
NL7402885A (en) 1974-09-11
BE811367A (en) 1974-06-17
FR2220695B3 (en) 1976-11-26
AT327455B (en) 1976-02-10
ATA114074A (en) 1975-04-15
ES201578Y (en) 1976-02-01
ES201578U (en) 1975-10-01
FR2220695A1 (en) 1974-10-04
IT1005257B (en) 1976-08-20
CH562996A5 (en) 1975-06-13

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Legal Events

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