Oxygen sensing and control device for a breathing apparatus

• US 3,252,458 A
• Filed: 02/16/1965
• Issued: 05/24/1966
• Est. Priority Date: 02/16/1965
• Status: Expired due to Term

• Current Assignee: Krasberg, Alan R.
• Original Assignee: Krasberg, Alan R.
• Inventors: Krasberg, Alan R.
• Application Number:
  US04/433,113
• Time in Patent Office: 462 Days
• US Class Current: 128/204.22
• CPC Class Codes: A62B 7/10 with filter elements

Claims

1. A SYSTEM FOR MAINTAINING A LIFE SUSTAINING ATMOSPHERE COMPRISING MEANS CMMUNICATIVE WITH A BREATHER FOR PROVIDING A GAS TO BE BREATHED, MEANS CONNECTED WITH SAID FIRST MENTIONED MEANS FOR SUPPLYING OXYGEN TO SAID FIRST MENTIONED MEANS, A POLAROGRAPHIC ELECTRODE COMPRISING ELECTROLYTE AND AN ANODE AND A CATHODE IMMERSED IN SAID ELECTROLYTE COMMUNICATING WITH SAID FIRST MENTIONED MEANS FOR SENSING THE PRESENCE OF OXYGEN IN ACCORDANCE WITH THE PARTIAL PRESSURE RESULTING FROM THE OXYGEN IN THE GAS WITHIN SAID FIRST MENTIONED MEANS, SAID ELECTRODE INCLUDING AN OXYGEN PERMEABLE MEMBRANE CONFINING SAID ELECTROLYTE, AND MEANS RESPONSIVE TO AN ELECTRICAL SIGNAL PROVIDED BY SAID ELECTODE IN RESPONSE TO THE PRESENCE OF OXYGEN FOR CONTROLLING THE FLOW OF OXYGEN FROM SAID OXYGEN SUPPLYING MEANS TO SAID FIRST MENTIONED MEANS.