Patents by Inventor Fermin Alejandro Sandoval Diaz

Fermin Alejandro Sandoval Diaz 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).

  • Electrical/visual differential pressure indicator with solid state sensor
    Patent number: 6880405
    Abstract: A differential pressure indicator has a housing with at least two ports in the housing. One port receives a first pressure, and the second port receives a second pressure. A pressure resistive device is placed between the first port and the second port. The pressure resistive device changes its position when the first pressure exceeds the second pressure by a predetermined amount. A magnet is coupled to the pressure resistive device. A digital displacement sensor senses the position of the magnet. The digital displacement sensor is in communication with an electronic indicator. The electronic indicator activates when the first pressure exceeds the second pressure by a predetermined amount.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 19, 2005
    Assignee: PTI Technologies, Inc.
    Inventors: Bijan Mouhebaty, Fermin Alejandro Sandoval Diaz, Daniel K. Moscaritolo
  • Electrical/visual differential pressure indicator with solid state sensor
    Publication number: 20040255684
    Abstract: A method of determining fouling of a filter includes the use of a differential pressure indicator which has a housing with at least two ports in the housing. One port receives a first pressure, and the second port receives a second pressure. A pressure resistive device is placed between the first port and the second port, and changes its position when the first pressure exceeds the second pressure by a predetermined amount. A magnet is coupled to the pressure resistive device. A digital displacement sensor senses the position of the magnet and is in communication with an electronic indicator. The electronic indicator activates when the first pressure exceeds the second pressure by a predetermined amount, thus allowing determination of filter fouling.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 23, 2004
    Applicant: PTI TECHNOLOGIES, INC.
    Inventors: Bijan Mouhebaty, Fermin Alejandro Sandoval Diaz, Daniel K. Moscaritolo
  • ELECTRICAL/VISUAL DIFFERENTIAL PRESSURE INDICATOR WITH SOLID STATE SENSOR
    Publication number: 20040123668
    Abstract: A differential pressure indicator has a housing with at least two ports in the housing. One port receives a first pressure, and the second port receives a second pressure. A pressure resistive device is placed between the first port and the second port. The pressure resistive device changes its position when the first pressure exceeds the second pressure by a predetermined amount. A magnet is coupled to the pressure resistive device. A digital displacement sensor senses the position of the magnet. The digital displacement sensor is in communication with an electronic indicator. The electronic indicator activates when the first pressure exceeds the second pressure by a predetermined amount.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Applicant: PTI Technologies, Inc.
    Inventors: Bijan Mouhebaty, Fermin Alejandro Sandoval Diaz, Daniel K. Moscaritolo