REGENERATION HOLDER FOR ISOLATING RESPIRATORY APPARATUS Russian patent published in 1997 - IPC

FIELD: protective equipment for respiratory organs. SUBSTANCE: regeneration holder has oval-shaped body, shell and central perforated pipe. Space between shell and perforated pipe is filled with granular regenerative product. Shell is in spaced relation to body wall. Shell surface has perforated and continuous portions. Perforated portions are positioned at opposite sides of shell in symmetry with conventional lines defined by section extending across its small axis. Ratio of surface area of perforated and continuous portions ranges from 1.5:1 to 2.5:1. Size of granule of regenerative product is 3-6% of linear size of section of continuous portion. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 3 dwg