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Breathing mask leak detector and training aid

  • US 3,318,020 A
  • Filed: 10/12/1964
  • Issued: 05/09/1967
  • Est. Priority Date: 10/12/1964
  • Status: Expired due to Term
First Claim
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1. A BREATHING MASK LEAK DETECTOR AND TRAINING AID COMPRISING A CARRYING CASE INCLUDING A CLOSURE MEMBER THEREFOR, A FOLDABLE FLEXIBLE ENCLOSURE OF SUBSTANTIALLY TRANSPARENT MATERIAL OPEN AT ONE END, MEANS SECURING SAID ENCLOSURE ADJACENT ITS OTHER END TO SAID CASE FOR BEING SUSPENDED THEREFROM OVER THE UPPER PORTION OF A HUMAN BODY, AND MEANS CARRIED BY SAID CONTAINER FOR INTRODUCING AND CIRCULATING THROUGH SAID ENCLOSURE A GAS CONTAINING A PHYSIOLOGICAL REACTION PRODUCING CHEMICAL, SAID ENCLOSURE BEING FOLDABLE INTO SAID CASE AND SAID CLOSURE MEMBER CONFINING THE FOLDED ENCLOSURE WITHIN SAID CASE.

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