GB1353576A - Fireprotection flap valves - Google Patents

Fireprotection flap valves

Info

Publication number
GB1353576A
GB1353576A GB5906072A GB5906072A GB1353576A GB 1353576 A GB1353576 A GB 1353576A GB 5906072 A GB5906072 A GB 5906072A GB 5906072 A GB5906072 A GB 5906072A GB 1353576 A GB1353576 A GB 1353576A
Authority
GB
United Kingdom
Prior art keywords
flap
heat
dec
edges
gypsum
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
GB5906072A
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.)
Gebrueder Trox GmbH
Original Assignee
Gebrueder Trox GmbH
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 Gebrueder Trox GmbH filed Critical Gebrueder Trox GmbH
Publication of GB1353576A publication Critical patent/GB1353576A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Building Environments (AREA)
  • Thermal Insulation (AREA)

Abstract

1353576 Valves TROX GmbH Gebr 21 Dec 1972 [21 Dec 1971] 59060/72 Heading F2V A pivotable fire-protection flap valve 1, Fig. 1, for installation in air ducts 10 comprises at least one layer 2, Fig. 3, of gypsum bonded to at least one self-supporting layer 3 of heat insulating material, e.g. asbestos cement. The flap is covered by aluminium foil 4 and is provided along its edges with a substance 6 which foams when subjected to heat. Steel members 7 protect the edges of the flap. The flap swings into a closed position when released by a retaining member 11, Fig. 1. The vaporization of the chemically bound water in the gypsum enables the valve to absorb a great deal of heat.
GB5906072A 1971-12-21 1972-12-21 Fireprotection flap valves Expired GB1353576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7147958 1971-12-21

Publications (1)

Publication Number Publication Date
GB1353576A true GB1353576A (en) 1974-05-22

Family

ID=6625847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5906072A Expired GB1353576A (en) 1971-12-21 1972-12-21 Fireprotection flap valves

Country Status (3)

Country Link
FR (1) FR2165661A5 (en)
GB (1) GB1353576A (en)
ZA (1) ZA728732B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0447944B1 (en) * 1990-03-17 1995-01-04 Schako Metallwarenfabrik Ferdinand Schad Kg Fire protection flap
ES2232279A1 (en) * 2003-04-25 2005-05-16 Shako Metallwarenfabrik Ferdinand Schad Kg Fire-resistant gate for air conditioning ventilation duct, has body provided with pivots for passing air into gate, where surfaces of body are separated by iron plates and plaster layer is formed on body
EP3916316A1 (en) * 2020-05-29 2021-12-01 Rf-Technologies nv Ventilation element with seals
BE1028359B1 (en) * 2020-05-29 2022-01-10 Rf Tech Nv VENTILATION ELEMENT WITH ONE OR MORE COVERED WALL SURFACES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520834B1 (en) * 1982-02-04 1986-11-14 Vraco Systemes FIRE-RESISTANCE AND INSULATION DEVICE FOR A "BUTTERFLY" SHUTTER VALVE
DE4114296A1 (en) * 1991-05-02 1992-11-05 Schako Metallwarenfabrik FIRE PROTECTION VALVE
FR2717088B1 (en) * 1994-03-09 1996-04-19 Vraco Sa Fire damper.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0447944B1 (en) * 1990-03-17 1995-01-04 Schako Metallwarenfabrik Ferdinand Schad Kg Fire protection flap
ES2232279A1 (en) * 2003-04-25 2005-05-16 Shako Metallwarenfabrik Ferdinand Schad Kg Fire-resistant gate for air conditioning ventilation duct, has body provided with pivots for passing air into gate, where surfaces of body are separated by iron plates and plaster layer is formed on body
EP3916316A1 (en) * 2020-05-29 2021-12-01 Rf-Technologies nv Ventilation element with seals
BE1028359B1 (en) * 2020-05-29 2022-01-10 Rf Tech Nv VENTILATION ELEMENT WITH ONE OR MORE COVERED WALL SURFACES

Also Published As

Publication number Publication date
FR2165661A5 (en) 1973-08-03
ZA728732B (en) 1973-10-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees