Patents by Inventor David Salgueiro

David Salgueiro 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).

  • Infrared safety beam system
    Patent number: 10386226
    Abstract: An optical safety beam method and system. A transmitter periodically sends bursts of light pulses with varying strengths. The receiver analyzes the received light pulses to automatically adjust its sensitivity and to detect when the light path is partially obstructed even when there are stray light pulse reflections that reach the receiver.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 20, 2019
    Assignee: Mars International, Inc.
    Inventors: Geoffrey Engelstein, David Salgueiro, Mohamed Abdelhafez, Ralph Giffone, Andrew Lindsay
  • Method and apparatus for providing a splitter in a notification system
    Publication number: 20050163306
    Abstract: The present invention relates to an apparatus and concomitant method for providing a splitter in a notification system. More specifically, the present invention provides a splitter, e.g., between an audio power booster and at least one notification appliance in a supervised emergency voice evacuation system.
    Type: Application
    Filed: October 18, 2004
    Publication date: July 28, 2005
    Inventor: David Salgueiro