Patents by Inventor Earl Edward Esson

Earl Edward Esson 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).

  • Safety alarm system
    Patent number: 7324013
    Abstract: A safety alarm system for use on moving vehicles and heavy equipment provides an added level of safety by not only indicating motion, but by adding a distinct audible warning according to a selected sound pattern template when danger is imminent to those in the local area of potential danger. The sound pattern is selected on the basis of signals from various combinations of signals detected from an object detection sensor and an ambient noise level sensor, thereby providing enhanced safety in the work environment.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 29, 2008
    Assignee: Preco Electronics, Inc.
    Inventor: Earl Edward Esson