Patents by Inventor Jorge Alarcon Opazo

Jorge Alarcon Opazo 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).

  • Compact portable digital multimeter for instantaneous measuring of height differences independently of visibility
    Patent number: 4356639
    Abstract: A device for measuring height despite difficult visibility comprises a small portable water tank positioned at the location to be measured and a pressure transducer placed at a reference location and connected with the water tank by a hose, whereby the transducer outputs a signal voltage proportional to hydrostatic pressure and hence to the height of the first location. The output signal is amplified and converted to a digital value which is displayed by a digital display calibrated in terms of height.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: November 2, 1982
    Inventor: Jorge Alarcon Opazo