Inflation Valve

An inflation valve for inflating containers with non-rigid walls, which includes

• (a) a tubular body defining a passage with a first opening at one end leading into the passage and a second opening at its opposite end leading into the passage, the tubular body being adapted to be secured to a container, e.g. with non-rigid walls;
• (b) a sealing disc or plunger of plastics material, and being adapted to sealingly close off the second opening to the passage in the tubular body, and being adapted to open the second opening mechanically when an inflation device is inserted into the passage through the first opening and thus gas may be passed into the container through the second opening and thereby moving the sealing disc or plunger away from the second opening;
• (c) a guide member located within the passage of the tubular body;
• (d) a spring associated with the sealing disc or plunger and supported by the guide member, the spring being adapted to assist the sealing disc or plunger to close off the second opening;
• and
• (e) a gasket and/or sealing ring located in a cavity or recess in the sealing disc or plunger and being adapted to assist the sealing disc or plunger to close of the second opening.