An apparatus for sealing a hole in a wall

An apparatus for sealing a hole in a wall (4), the wall in use dividing a region of relative high pressure from a region of relative low pressure, the apparatus comprising an elongate stem (2) connected at one end to a sealing member (3) which extends substantially radially from the major axis of sa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JOHN FORD, SAM FORD
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR BLASTING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING ENGINEERING ELEMENTS AND UNITS EQUIPMENT FOR SHIPPING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PIPES RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS STORING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An apparatus for sealing a hole in a wall (4), the wall in use dividing a region of relative high pressure from a region of relative low pressure, the apparatus comprising an elongate stem (2) connected at one end to a sealing member (3) which extends substantially radially from the major axis of said stem in an extended state such that, in use, said relative high pressure acts to seal the sealing member in the extended state against the wall, wherein said sealing member is resiliently deformable from said extended state into a collapsed state in which the sealing member is folded towards the stem, and into an everted state in which the sealing means is folded away from the stem. Said sealing member may when in its extended state form a dome shape which acts to maintain an air gap around the hole.