Patents by Inventor John David Swan

John David Swan 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).

  • BOX HEATER SYSTEM
    Publication number: 20140209591
    Abstract: A box heater system to be mounted in a box in which material is receivable for discharge therefrom. The box heater system includes a heat-generating assembly having a body including one or more channels formed therein, and one or more heating elements at least partially positioned in the channel(s), for generating heat and transferring the heat to at least part of the body. The body is movable relative to the heating element, and the heating element is movable relative to the body. The heat transferred to the body is at least partially transferable to the material received in the box.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 31, 2014
    Applicant: WALKIN ON DOWN LTD.
    Inventor: John David Swan
  • Automatic freeze protection system for domestic plumbing systems
    Patent number: 7954506
    Abstract: A plumbing system operable to automatically introduce antifreeze into the hot and cold water systems responsive to a signal from a controller. The controller activates the system automatically at a predetermined ambient temperature. The system can also be reconfigured manually.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: June 7, 2011
    Inventor: John David Swan
  • AUTOMATIC FREEZE PROTECTION SYSTEM FOR DOMESTIC PLUMBING SYSTEMS
    Publication number: 20040206394
    Abstract: A plumbing system operable to automatically introduce antifreeze into the hot and cold water systems responsive to a signal from a controller. The controller activates the system automatically at a predetermined ambient temperature. The system can also be reconfigured manually.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 21, 2004
    Inventor: John David Swan