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Personal respirator

  • US 6,550,479 B1
  • Filed: 07/26/2000
  • Issued: 04/22/2003
  • Est. Priority Date: 07/26/2000
  • Status: Expired due to Fees
First Claim
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1. A personal respiratory protection device, comprising(a). a mouth piece providing a means to support, center and secure in a wearer'"'"'s mouth, an oval breathing tube;

  • (b). a valve chamber having an extension through the mouthpiece, two horizontal openings opposed to each other, one left and one right, for filtered air to enter when inhaling and a downward facing opening with a check valve to let exhaled air exhaust out;

    (c). a short exhaust tube directed downward from the check valve and chamber;

    (d). a pair of detachable coupling sleeve connectors with check valves on each filtered air opening, one left and one right, at the valve chamber;

    (e). a pair of tubes adapted for extending around the wearer'"'"'s head and neck, one on the left side and one on the right side, directing filtered air to the check valves;

    (f). a “

    T”

    connection adapted to be located behind the wearer'"'"'s head, connecting the pair of tubes together with an opening at 90 degrees;

    (g). a filter socket with an outlet opening attached to the opening of the “

    T”

    connection and an inlet threaded with a gasket to accept a threaded filter cartridge.

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