AT344857B - PRESSURE FLAP FOR FAN - Google Patents

PRESSURE FLAP FOR FAN

Info

Publication number
AT344857B
AT344857B AT880676A AT880676A AT344857B AT 344857 B AT344857 B AT 344857B AT 880676 A AT880676 A AT 880676A AT 880676 A AT880676 A AT 880676A AT 344857 B AT344857 B AT 344857B
Authority
AT
Austria
Prior art keywords
fan
pressure flap
flap
pressure
Prior art date
Application number
AT880676A
Other languages
German (de)
Other versions
ATA880676A (en
Original Assignee
Schako Metallwarenfabrik
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 Schako Metallwarenfabrik filed Critical Schako Metallwarenfabrik
Publication of ATA880676A publication Critical patent/ATA880676A/en
Application granted granted Critical
Publication of AT344857B publication Critical patent/AT344857B/en

Links

Classifications

    • 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)
  • Air-Flow Control Members (AREA)
AT880676A 1975-12-20 1976-11-29 PRESSURE FLAP FOR FAN AT344857B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752557582 DE2557582C3 (en) 1975-12-20 1975-12-20 Overpressure damper for fan

Publications (2)

Publication Number Publication Date
ATA880676A ATA880676A (en) 1977-12-15
AT344857B true AT344857B (en) 1978-08-10

Family

ID=5965006

Family Applications (1)

Application Number Title Priority Date Filing Date
AT880676A AT344857B (en) 1975-12-20 1976-11-29 PRESSURE FLAP FOR FAN

Country Status (8)

Country Link
AT (1) AT344857B (en)
BE (1) BE849425A (en)
CH (1) CH600162A5 (en)
DE (1) DE2557582C3 (en)
FR (1) FR2335713A1 (en)
GB (1) GB1549944A (en)
IT (1) IT1123040B (en)
SE (1) SE429376B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204660B (en) * 1987-04-11 1991-04-17 Pentec Engineering Services Li Valve arrangement
DE8810027U1 (en) * 1988-08-05 1988-09-22 Haver & Boecker, 4740 Oelde Device for filling open containers
DE4333663C1 (en) * 1993-10-02 1995-05-11 Patent Und Innovationsagentur Flap valve with cylindrical housing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279425A (en) * 1939-11-16 1942-04-14 Westinghouse Electric & Mfg Co Discharge shutter for blowers
GB1197023A (en) * 1968-04-04 1970-07-01 Royair Ltd Improvements in and relating to Dampers for Ventilating Systems
US3826179A (en) * 1972-10-20 1974-07-30 American Warming Ventilation Differential pressure responsive damper
DE2431065A1 (en) * 1974-06-28 1976-01-15 Maico Elektroapparate Cover system for extractor fan or apertures - has pivoted lamellae with stepped static splints acting as closure stops

Also Published As

Publication number Publication date
SE7613450L (en) 1977-06-21
DE2557582C3 (en) 1979-10-18
FR2335713A1 (en) 1977-07-15
FR2335713B1 (en) 1982-07-02
IT1123040B (en) 1986-04-30
GB1549944A (en) 1979-08-08
SE429376B (en) 1983-08-29
DE2557582B2 (en) 1979-03-01
BE849425A (en) 1977-04-01
ATA880676A (en) 1977-12-15
CH600162A5 (en) 1978-06-15
DE2557582A1 (en) 1977-06-30

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee