Abstract: A desalinating process is disclosed. The process comprises freezing sea water as ice of sea water, exerting an external force on the ice of sea water to separate salt therefrom for converting the ice of sea water into ice of fresh water, storing the salt and the ice of fresh water in two different places, and melting the ice of fresh water to produce drinkable fresh water.

Abstract: A desalinating process is disclosed. The process comprises freezing sea water as ice of sea water, exerting an external force on the ice of sea water to separate salt therefrom for converting the ice of sea water into ice of fresh water, storing the salt and the ice of fresh water in two different places, and melting the ice of fresh water to produce drinkable fresh water.

Abstract: A waterbed having inside air cushion and method of manufacturing same is disclosed. The method comprises forming a watertight bladder having valve means thereon, forming an inflatable air cushion inside the watertight bladder, forming at least one air valve extended from the air cushion through the watertight bladder and secured thereat, inflating the air cushion, filling water into the watertight bladder, and drawing air out of the watertight bladder until the amount of air in a predetermined space of the watertight bladder is substantially reduced to less than 20% by volume, and a water screen is thus formed around the air cushion due to siphonage. The invention can provide an increased degree of softness to the skin of a user, suitably taking away heat from the body of the user, and making muscles supple when the user rolls thereon due to the compressibility of the air cushion.

Abstract: A waterbed having inside air cushion and method of manufacturing same is disclosed. The method comprises forming a watertight bladder having valve means thereon, forming an inflatable air cushion inside the watertight bladder, forming at least one air valve extended from the air cushion through the watertight bladder and secured thereat, inflating the air cushion, filling water into the watertight bladder, and drawing air out of the watertight bladder until the amount of air in a predetermined space of the watertight bladder is substantially reduced to less than 20% by volume, and a water screen is thus formed around the air cushion due to siphonage. The invention can provide an increased degree of softness to the skin of a user, suitably taking away heat from the body of the user, and making muscles supple when the user rolls thereon due to the compressibility of the air cushion.

Abstract: An inflatable cervical pillow formed of airtight thermoplastic material comprises a water chamber including a valve projected above the surface thereof, and an air chamber including a valve projected above the surface of water chamber. Pillow is curved about 35 to 45 degrees from the lowest front end to the highest rear end. The chambers are flexibly fitted each other. The air chamber has a corrugated surface such that water in the water chamber is operable to flow toward the corrugated surface of the air chamber. The invention is ergonomic such that musculoskeletal discomfort in the head and the neck of the user is totally eliminated after sleep.

Abstract: A constant-pressure waterbed is provided, which can provide a constant air pressure to a sole air-pressure frame that surrounds a water-filled mattress so as to allow the water in the water-filled mattress to be always suitably compressed to provide the desired level of softness. The air-pressure frame is used to apply an air pressure of a preselected limit level to the water-filled mattress. The constant-pressure waterbed utilizes a drainage valve to drain excessive air in the event that the air pressure in the air-pressure frame is above a preselected limit level so as to maintain the air pressure at the preselected limit level. Moreover, the constant-pressure waterbed utilizes an air pump which can pump air into the air-pressure frame when the air pressure in the air-pressure frame is below the preselected limit level. The air pressure in the air-pressure frame can therefore always be maintained at the desired level so as to allow the water-filled mattress to always provide the desired level of softness.