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1. NZ623511 - AN INFLATABLE CAVITY FILL OR CAVITY FORMING MEMBER

Office
New Zealand
Application Number 623511
Application Date 05.04.2013
Publication Number 623511
Publication Date 28.08.2015
Publication Kind A
IPC
F16K 17/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
E04B 2/00
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
2Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
E04C 1/39
EFIXED CONSTRUCTIONS
04BUILDING
CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
1Building elements of block or other shape for the construction of parts of buildings
39characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
E04B 2/14
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
2Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
02built-up from layers of building elements
14Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
Applicants LAKE PRODUCTS LIMITED
Inventors ANDREW LEO HAYNES
Agents AJ PARK
Title
(EN) AN INFLATABLE CAVITY FILL OR CAVITY FORMING MEMBER
Abstract
(EN)
623511 Disclosed is a device (100) for filling or creating a void within a construction medium, such as concrete, to permit the passage or installation of pipes (200) or fittings. The device (100) comprises a body and at least one valve member (140). The body has at least one inflatable body portion. Each inflatable body portion has one or more inflatable cavities (111a-111m). The at least one valve member (140) fluidly connects to the one or more inflatable cavities (111a-111m) to control flow of fluid into the one or more inflatable cavities (111a-111m) to inflate. In use, the one or more cavities (111a-111m) are shaped to substantially fill or create the void in the construction medium when in an inflated state.