Breathing device

DETAILED DESCRIPTION What is claimed is: 1.
A breathing device for use by runners, joggers, and the like for preheating and/or controlling the volume of air entering the user's oral cavity through the breathing process, said device comprising an elongated hollow generally tubular body defining a flowpath therethrough having opposite inner and outer end portions terminating in open inner and outer ends, said inner end portion having a relatively thick wall construction with respect to said outer end portion and an oblong cross-section so as to facilitate gripping said inner end portion in the user's mouth by his or her teeth, said outer end portion adapted to extend between and beyond the user's lips so as to project at least partially out of said oral cavity, an open mesh relatively densely packed heat exchange element disposed in the flowpath of said body and acting as a moisture trap for exhaled air leaving said device and such that air entering said device is preheated and/or controlled in volume thereby, said inner end portion being straight and comprising substantially half of said tubular body, said outer end portion being curved and comprising substantially the other half of said tubular body whereby said tubular body can be easily maintained between a first position of at least partially to a second position of almost completely in the user's mouth and utilized as the only means by which air enters and exits the user's oral cavity 1 said heat exchange element disposed in said body such that it overlaps substantial portions of said inner and outer end portions wherein all of said heat exchange element within said body is positioned in said oral cavity in said second use position and a substantial portion of the heat exchange element is in said oral cavity in said first position such that said element is additionally heated by conduction by its position in said oral cavity in said first and second positions.
2.
The device of claim 1, said inner and outer end portions having upper and lower surfaces, said outer end portion terminating in said open outer end which directs the flow of gas in a downward direction with respect to said inner end portion