Patents Represented by Attorney Northwest Patent Law
  • Patent number: 7234652
    Abstract: The present invention is a double curved surface deflector system for rotary sprinklers providing for a 360-degree rotation using both clockwise and counterclockwise movements. A spray coupler directs water in forward and rear directions. The forward direction is deflected by an inward facing deflector that directs the water across a curved surface projects the water in the reverse direction with an adjustable water elevator for extended lift. After the sprinkler head rotates until the selector hits an adjustable stop, the inward facing deflector then pivots the sprinkler head in the opposite direction for the remainder of the coverage.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: June 26, 2007
    Inventor: Robert Rodeman
  • Patent number: 7117996
    Abstract: An adjustable apparatus for sizing objects, mainly delicate foods, by the rotation of a set of at least 7 rollers, each roller having one less tooth so that the rollers move at progressively higher revolutions per minute, from the in-feed shear roller of 144 revolutions per minute to the discharge roller of 210 revolutions per minute. The rollers are shaped and finished by 7 to 12 flats, alternated with a crown in between each flat, cut the horizontal length of the roller. The rollers are then sandblasted over the entire circumference of the surface to a depth range of 280 to 300 micro-inches.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: October 10, 2006
    Assignee: Key Technology Inc.
    Inventors: John Mobley, David K. Johnsen, Scott Benjamin