Patents by Inventor Jon Barrows

Jon Barrows 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).

  • Water alarm and method of using same
    Patent number: 5517174
    Abstract: A sensor includes a hollow tube having first and second ends; a cap secured at said first end; said second end being substantially open to allow fluid to enter the tube; a floatation element slidably arranged within said tube; means at said second end for preventing the floatation element from leaving said tube; a contact switch arranged within said tube between said cap and said floatation element; and a fluid exhaust means provided in said tube adjacent said contact switch. The sensor may be used to detect a motion or displacement of water in a swimming pool.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: May 14, 1996
    Assignee: Waterbug Systems, Inc.
    Inventor: Jon Barrows
  • Water level sensor, trailer using same and method of using trailer
    Patent number: 5515025
    Abstract: A sensor includes a hollow tube having first and second ends; a cap secured at said first end; the second end being substantially open to allow fluid to enter the tube; a floatation element slidably arranged within said tube; an element at the second end for preventing the floatation element from leaving the tube; a contact switch arranged within the tube between the cap and the floatation element; and a fluid exhaust opening provided in the tube adjacent the contact switch.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: May 7, 1996
    Assignee: Waterbug Systems, Inc.
    Inventor: Jon Barrows