NL7208183A - - Google Patents

Info

Publication number
NL7208183A
NL7208183A NL7208183A NL7208183A NL7208183A NL 7208183 A NL7208183 A NL 7208183A NL 7208183 A NL7208183 A NL 7208183A NL 7208183 A NL7208183 A NL 7208183A NL 7208183 A NL7208183 A NL 7208183A
Authority
NL
Netherlands
Application number
NL7208183A
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 filed Critical
Publication of NL7208183A publication Critical patent/NL7208183A/xx

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
NL7208183A 1971-06-15 1972-06-15 NL7208183A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15324771A 1971-06-15 1971-06-15

Publications (1)

Publication Number Publication Date
NL7208183A true NL7208183A (xx) 1972-12-19

Family

ID=22546377

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7208183A NL7208183A (xx) 1971-06-15 1972-06-15

Country Status (6)

Country Link
AU (1) AU4295972A (xx)
DE (1) DE2227937A1 (xx)
FR (1) FR2142386A5 (xx)
GB (1) GB1345465A (xx)
IT (1) IT958228B (xx)
NL (1) NL7208183A (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161941A (en) * 1990-08-28 1992-11-10 Sinko Kogyo, Co, Ltd. Actuator assembly for controlling inlet air flow to centrifugal fans
AU2015201503B1 (en) * 2015-03-23 2016-04-07 Consolidated Ventilation Equipment Pty Rotary vent

Also Published As

Publication number Publication date
GB1345465A (en) 1974-01-30
IT958228B (it) 1973-10-20
DE2227937A1 (de) 1972-12-21
FR2142386A5 (xx) 1973-01-26
AU4295972A (en) 1973-12-06

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Legal Events

Date Code Title Description
BV The patent application has lapsed