Diver's gas heater
OwnerRichard William Longinventor
Life of this patent
Estimating the term…
Abstract
A diver's gas heater, for use with a hot water heated suit, to heat the diver's breathing gas for added comfort in cold water. Hot water from a surface installed source is pumped through a hose to the diver's suit and the heater is installed directly in the hot water supply hose. The hot water passes through a tubular heat exchanger and the breathing gas flows through an annulus around the water conducting tube. A portion of the hot water is tapped off to maintain heating around the short length of breathing gas hose between the heat exchanger and the diver's helmet.
Claims5
A breathing gas heater for use with a hot water heated diver's suit, comprising:
- a hot water heated diver's suit,
- an elongated tubular casing having a water inlet at one end with means for connection to a source of hot water, and a water outlet at the other end with means for connection to a diver's suit,
- an inner heat conducting tube fixed in said casing between said inlet and outlet and defining a central water conducting channel and an outer gas conducting annulus,
- a gas inlet in said casing adjacent said water inlet, opening into said annulus and having means for connection to a source of breathing gas,
- a gas outlet in said casing adjacent said water outlet, opening from said annulus and having diver's suit connection means for connection to the diver's suit,
- said diver's suit connection means comprises a gas extension hose attached to said gas outlet and extending to the diver's suit,
- a jacket surrounding and coextensive with said extension hose,
- and means for conducting hot water from the heater unit into said jacket.
Dependencies are inferred from the claim text.