Surgery – Respiratory method or device – Including body or head supported means covering user's scalp
Patent
1995-05-19
1996-10-22
Millin, V.
Surgery
Respiratory method or device
Including body or head supported means covering user's scalp
12820128, 12820522, 12820525, 12820122, 2424, A62B 702
Patent
active
055666680
ABSTRACT:
A life-saving helmet for escaping from the fire comprised of a transparent plastic bowl. There is a mouth-piece tubing for user putting in his mouth to blow out the exhaled air, while the external end has a check valve allowing only the one-way flow of the air outside. There is another tubing slight above the user's nose, having an automatic check valve allowing the one-way flow of the air to the outside, thereby keeping the pressure inside the helmet constant at one atmospheric pressure. A spot-light at the forehead level of the helmet provides light to assist escaping in the dark and as a signal seeking for help. A built-in plastic pipe on top of the helmet contains a breathable air bottle. The bottle has a tubing extended out. The tip of the tubing abuts the upper edge of a rectangular groove at inner anterior wall of the plastic pipe. A sheath is sealed at lower edge of the blow with an elastic band at its rim. The posterior end of plastic pipe is closed with a lid. At the center of the lid is a hole with the internal threads mating with the external threads of a round-headed bolt. The bolt is turned until its end pushes the bottle to move a predetermined distance and causes the release of the gas. The breathable gas passes through the groove to fill in the helmet. A waterproof adhesive tape is used to prevent the leakage of water into the helmet.
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Deane, Jr. William J.
Millin V.
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