ELEMENT FOR PROVIDING THERMAL BALANCE OF ORGANISM (VERSIONS) Russian patent published in 2005 - IPC

FIELD: equipment for individual protection of human respiratory organs and organism on the whole during operation or presence under low and lower, high and increased temperatures, and also for returning of moisture lost with inhalation.

SUBSTANCE: element of first embodiment has shape conforming with shape of lower part of face. Effective section of element is tens times the section of respiratory tracts. Inner surface of element is provided with central opening for breathing through mouth. Casing is formed as thin layer which does not render pneumatic resistance to breathing flows. Said layer is made from thread-like moisture-impermeable material with density of 75-300 mg/l, thickness of 3-30 mm. Casing is equipped with opening for breathing through mouth. Netted members defining insert in casing are impregnated with hardening compound to form variable radius curved pack. Netted members have thickness ranging between ones and dozens microns, and pack has thickness ranging between ones and dozens millimeters. Internal volume of element is defined by its internal surface of smaller radius and inner cover imparting additional rigidity to said element, with maximal distance therebetween in the middle reducing in perimeter to zero, and opening for breathing through mouth. Radius of outer surface of mask is greater than radius of its inner surface to result in formation of widening micro channels of heat-exchanging surface. Tapes are attached to upper and lower edges of element for fastening on user's head, behind ears. Second embodiment of element has case where insert is accommodated, said insert being composed of set of perforated or netted members superposed onto one another, tapes for attachment to user's head, and nose warming part. Internal volume of element is defined by its inner surface of smaller radius and internal additional rigidity imparting cover, with maximal distance therebetween in the middle reducing in perimeter to zero, and opening for breathing. Third version of element is used for breathing through collar or scarf and is composed of narrow vertical strips pivotally or elastically secured with one another and impregnated with hardening compound. Said strips are located within case formed of thin layer which does not render resistance to breathing flows. Case is made from thread-like moisture-impermeable material having density of 75-300 mg/l, thickness of 3-30 mm and is placed into netted pocket stitched into edges or one edge of collar or scarf.

EFFECT: increased efficiency and convenient usage of element.

8 cl, 9 dwg