Patents by Inventor Adolfo V. Ayes

Adolfo V. Ayes 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).

  • Respirator cartridge
    Patent number: 4334901
    Abstract: Lower inhalation resistance in respirator cartridges designed for protection against aerosols is accomplished with lower production cost and improved design distributing aerosol loading over greater surface area of filter material.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: June 15, 1982
    Assignee: American Optical Corporation
    Inventors: Adolfo V. Ayes, John A. Jones
  • Respirator cartridge end-of-service lift indicator system and method of making
    Patent number: 4154586
    Abstract: Providing visual means for indicating when vapor/gas respirator cartridges have exhausted their capacity to provide respiratory protection at or below a hazardous concentration level. In combination with a vapor/gas indicator adapted to undergo a change in color with contact by an organic vapor or gas, there is provided a catalytic agent for enhancing activation and reaction of the indicator agent.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: May 15, 1979
    Assignee: American Optical Corporation
    Inventors: John A. Jones, Adolfo V. Ayes