GB1549944A - Over-pressure flap valve for a fan - Google Patents

Over-pressure flap valve for a fan

Info

Publication number
GB1549944A
GB1549944A GB5305376A GB5305376A GB1549944A GB 1549944 A GB1549944 A GB 1549944A GB 5305376 A GB5305376 A GB 5305376A GB 5305376 A GB5305376 A GB 5305376A GB 1549944 A GB1549944 A GB 1549944A
Authority
GB
United Kingdom
Prior art keywords
fan
over
flap valve
pressure flap
pressure
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
GB5305376A
Other languages
English (en)
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.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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 Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of GB1549944A publication Critical patent/GB1549944A/en
Expired legal-status Critical Current

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)
GB5305376A 1975-12-20 1976-12-20 Over-pressure flap valve for a fan Expired GB1549944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752557582 DE2557582C3 (de) 1975-12-20 1975-12-20 Überdruckklappe für Ventilator

Publications (1)

Publication Number Publication Date
GB1549944A true GB1549944A (en) 1979-08-08

Family

ID=5965006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5305376A Expired GB1549944A (en) 1975-12-20 1976-12-20 Over-pressure flap valve for a fan

Country Status (8)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8810027U1 (de) * 1988-08-05 1988-09-22 Haver & Boecker, 4740 Oelde Vorrichtung zum Füllen von offenen Behältern
GB2204660A (en) * 1987-04-11 1988-11-16 Pentec Engineering Services Li Valve arrangement
DE4333663C1 (de) * 1993-10-02 1995-05-11 Patent Und Innovationsagentur Klappenventil

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 (de) * 1974-06-28 1976-01-15 Maico Elektroapparate Verschlusseinrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204660A (en) * 1987-04-11 1988-11-16 Pentec Engineering Services Li Valve arrangement
GB2204660B (en) * 1987-04-11 1991-04-17 Pentec Engineering Services Li Valve arrangement
DE8810027U1 (de) * 1988-08-05 1988-09-22 Haver & Boecker, 4740 Oelde Vorrichtung zum Füllen von offenen Behältern
DE4333663C1 (de) * 1993-10-02 1995-05-11 Patent Und Innovationsagentur Klappenventil

Also Published As

Publication number Publication date
CH600162A5 (enrdf_load_stackoverflow) 1978-06-15
IT1123040B (it) 1986-04-30
DE2557582A1 (de) 1977-06-30
FR2335713A1 (fr) 1977-07-15
DE2557582C3 (de) 1979-10-18
FR2335713B1 (enrdf_load_stackoverflow) 1982-07-02
SE429376B (sv) 1983-08-29
SE7613450L (sv) 1977-06-21
BE849425A (fr) 1977-04-01
ATA880676A (de) 1977-12-15
DE2557582B2 (de) 1979-03-01
AT344857B (de) 1978-08-10

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Legal Events

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