Patents by Inventor Randall E Hammer

Randall E Hammer 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).

  • Switching assembly for a batch feed waste disposer
    Patent number: 7757981
    Abstract: A switching assembly for a food waste disposer includes a housing containing a switch and first and second magnets. An interlock device has third and fourth magnets. The magnets are arranged so that the switch is actuated when the first and third magnets align and the second and fourth magnets align.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: July 20, 2010
    Assignee: Emerson Electric Co.
    Inventors: Scott W Anderson, Srihari M Dhati, Randall E Hammer, Steven P Hanson, Thomas R Berger
  • Combination interlock and stopper device for food waste disposer
    Patent number: D537673
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: March 6, 2007
    Assignee: Emerson Electric Co.
    Inventors: Scott W Anderson, Steven P Hanson, Randall E Hammer