Patents by Inventor Amr M. S. Baz

Amr M. S. Baz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pressure regulator for breathing apparatus
    Patent number: 4289126
    Abstract: A pressure regulator for breathing apparatus which utilizes a low pressure control signal to control the inhalation of gases through the regulator. A first low pressure control valve is actuated by the diver's inhalation effort to provide a pressure signal which is used to control a main valve which supplies the breathing mixture input to the diver. Separate exhalation exhaust assist may be provided which utilizes energy from the air tank to help eject the diver's exhaust gases from the regulator.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: September 15, 1981
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ali A. Seireg, Amr M. S. Baz
  • Decompression plan device
    Patent number: 4054783
    Abstract: A device for calculating decompression plans prior to an underwater dive, and for monitoring the depth of a diver during an actual dive and continuously computing a safe decompression plan. The many tissues of a diver which absorb and eliminate inert gas are approximated by a single tissue having different time constants of uptake and elimination of inert gas. These time constants and discrete values of supersaturation ratio may be chosen to allow calculating of diving plans which approximate diving schedules determined empirically.
    Type: Grant
    Filed: March 9, 1976
    Date of Patent: October 18, 1977
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ali A. Seireg, Amr M. S. Baz
  • Decompression plan calculator
    Patent number: 4037084
    Abstract: A decompression calculator for calculating safe and efficient diving schedules utilizing unequal time constants for uptake and elimination of inert gas in the diver's tissues. Scales are provided to calculate a safe decompression stop for a single stage decompression and the time of decompression required where the working depth, the initial depth and the bottom time are known. Decompression times for staged decompression dives may also be calculated.
    Type: Grant
    Filed: March 9, 1976
    Date of Patent: July 19, 1977
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ali A. Seireg, Amr M. S. Baz