Abstract: An automatic valve for a pressure suit. The valve has a valve body with an inlet port therein having an actuable valve member to admit pressurized gas in a valve chamber in communication with a suit to which the valve is secured. An adjustable cover member is displaceably secured to the body and has at least one exhaust orifice. An outlet port is provided in the body and communicates with the valve chamber and has an automatic pressure regulating valve mechanism therein. The valve mechanism is adjustable by a pressure biasing member controlled by a first displacement of the adjustable cover member to control the pressure of the gas in the suit by automatically exhausting some of the gas through the outlet port when the internal pressure exceeds a preset pressure of the mechanism. A displaceable valve member is associated with the valve mechanism and displaceable by a second displacement of the cover member to exhaust gas from the valve chamber and the inside of the suit through the outlet port.

Abstract: This invention relates to a method of making boots for aquatic activities, more particularly for underwater diving. The method consists in the steps of forming a sock from a sheet of cellular elastomeric material and adhering an outsole assembly, including unvulcanized non-cellular rubber composition, to the sole portion and to the adjacent part of the upper of the sock all around the sole portion; placing the resulting unit in an oven; and vulcanizing under pressure said outsole assembly in situ on said sock at a maximum temperature below the degrading temperature of the cellular elastomeric material of the sock.

Abstract: This invention relates to boots for divers, used in association with a wet suit, dry suit, other diving gears or for other aquatic activities. Each boot comprises a sock, made of elastomeric material, preferably covered by nylon fabric on one or two sides, and an outsole, together with a back stay, a toe-cap and a foxing, made of non-cellular rubber and directly vulcanized as a unit on the sock. The resulting boot is long-lasting because the outsole does not become detached from the sock. Vulcanization is carried out in such a way that it does not affect the cellular elastomeric material.