A vent comprises a vent body (1) having at least one air flow channel through the body between a front face and a rear face (2) of the body. At least one float controlled flap valve (13) is pivotably mounted with the body, the or each valve having a first, normal position in which air is permitted to flow through an air flow channel and a second position in which the valve pivots in the presence of water to seal the air flow channel.
F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates
E06B 9/00 - Screening or protective devices for openings, with or without operating or securing mechanismsClosures of similar construction
E04B 1/70 - Drying or keeping dry, e.g. by air vents
E04C 1/39 - Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
A self-activating flood barrier includes a chamber (1) having first and second side walls (3, 5), a dam member (9) adapted to self-deploy in the event of a flood to inhibit the passage of water to a region to be protected, and a low-friction device (77, 79) positioned between the dam member and at least one of the first and second side walls of the chamber when the dam member is deployed. The low-friction device prevents jamming between the dam member and the at least one side wall.
The bringing together, for the benefit of others, of flood products, namely flood defence apparatus and systems, flood barriers, flood prevention air bricks, water control valves, backflow valves, non-return valves, and the services of construction professionals in flood mitigation surveying, flood defence installation and maintenance, flood damage support and flood damage restoration, and flood mitigation, flood defence, flood support and flood restoration services, all enabling customers to conveniently view and purchase those goods and services.
A vent comprises a vent body (1) having at least one air flow channel through the body between a front face and a rear face (2) of the body. At least one float controlled flap valve (13) is pivotably mounted within the body, the or each valve having a first, normal position in which air is permitted to flow through an air flow channel and a second position in which the valve pivots in the presence of water to seal the air flow channel.
F24F 13/06 - Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates
E06B 9/00 - Screening or protective devices for openings, with or without operating or securing mechanismsClosures of similar construction
E04B 1/70 - Drying or keeping dry, e.g. by air vents
E04C 1/39 - Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
A vent comprises a vent body (1) having at least one air flow channel through the body between a front face and a rear face (2) of the body. At least one float controlled flap valve (13) is pivotably mounted within the body, the or each valve having a first, normal position in which air is permitted to flow through an air flow channel and a second position in which the valve pivots in the presence of water to seal the air flow channel.
E06B 9/00 - Screening or protective devices for openings, with or without operating or securing mechanismsClosures of similar construction
E04C 1/39 - Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
