Diffusion type protective enclosure

• US 3,196,871 A
• Filed: 02/04/1958
• Issued: 07/27/1965
• Est. Priority Date: 02/04/1958
• Status: Expired due to Term

• Current Assignee: Ella B. Dwaayer, Eugene Sovinsky, Saul Hormats
• Original Assignee: Ella B. Dwaayer, Eugene Sovinsky, Saul Hormats
• Inventors: SAUL HORMATS, EUGENE SOVINSKY, Dwaayer, Ella B.
• Application Number:
  US03/713,273
• Time in Patent Office: 2,730 Days
• US Class Current: 128/205.28
• CPC Class Codes: A62B 31/00 Containers or portable cabins for affording breathing protection with devices for reconditioning the breathing air or for ventilating, in particular those that are suitable for invalids or small childrenventilation of gasproof shelters A62B13/00; protective clothes or coverings A62B17/00; treatment rooms for medical purposes A61G10/00

Claims

1. A PROTECTIVE ENCLOSURE COMPRISING A WALL COMPLETELY ENVELOPING SAID ENCLOSURE, A PORTION OF SAID WALL BEING A SHEET OF POROUS FIBROUS MATERIAL IMPREGNATED WITH ACTIVATED CHARCOAL, SAID CHARCOAL CONSTITUTING AT LEAST 15 PERCENT BY WEIGHT OF SAID MATERIAL, SAID MATERIAL HAVING A CARBON DIOXIDE DIFFUSIVITY FALLING IN THE RANGE 1.5X10-2 TO 7.0X10-2, SQ. CM./SEC., AND A THICKNESS OF AT LEAST ABOUT 2.5 MM., THE AREA OF SAID MATERIAL BEING SUFFICIENTLY GREAT TO DISPSEL SUBSTANTIALLY SOLEY BY DIFFUSION THE CARGON DIOXIDE PRODUCED BY ANY MAMMALS THAT AMY OCCUPY SAID ENCLOSURE, THE REMAINDER OF SAID WALL BEING IMPERVIOUS TO GAS.