Abstract: An inflatable tube having an inflatable access door for a rigid inflatable boat, the inflatable door and the boat so equipped. The tube is attachable to at least a portion of a perimeter of a rigid hull of the rigid inflatable boat. The inflatable tube comprises a first chamber, the inflatable door having an air inlet for inflating or deflating it, a second chamber and an attachment strip. The first chamber, the door and the second chamber are sequentially connected to the attachment strip so that the door is placed between the first chamber and the second chamber. The door is operative to cycle between an open position where the door is deflated to provide a passage between the first chamber and the second chamber and a closed position where the door is inflated.

Abstract: The present invention relates to an inflatable structure comprising an inflatable frame and a single inflation valve. The inflatable frame has at least two chambers in fluid communication with at least one other chamber through a check valve, whereby the chambers are inflated through the inflation valve.

Abstract: The present invention relates to an inflatable structure comprising an inflatable frame and a single inflation valve. The inflatable frame has at least two chambers in fluid communication with at least one other chamber through a check valve, whereby the chambers are inflated through the inflation valve.