Patents by Inventor James L. Friden

James L. Friden 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).

  • Patent number: 6056217
    Abstract: A hand held rotary pepper mill possessing several grinding rotors gravity fed from a single supply hopper enables an increased grinding rate. A rotor shaft couples each grinding rotor to one of several spur gears all driven by a single drive gear which is driven by an electric motor through reduction gears, planetary or otherwise. A rechargeable battery and a docking station possessing a transformer, A.C. plug, and electrical contacts is suggested. A power switch possessing a spring biased default `off` position, manually depressed `on` position, and `continuous on` positions is recommended. The supply hopper has a radially displaceable cover which may be spring loaded closed with a spring biased dog holding the cover open. Adjustment of grind may be facilitated by vertically displaceable spring biased grinding stators opposed to the grinding rotors. Opposed circumferentially inclined surfaces may be used for continuous grind selection locked with a toggle clamp tightened cincture.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: May 2, 2000
    Inventor: James L. Friden