Friggstad

Terrance Alan Friggstad, Grasswood CA

Patent application number	Description	Published
20080276846	Dual Row Seed Drill - A seed drill planting apparatus includes an opener configured to plant a row of seeds at locations corresponding to the wing tips of the openers and a row of fertilizer at the center of the opener. The press wheels for the opener are constructed of a pair of skewed wheels that are arranged to throw soil inwardly to provide a proper cover for the rows of seeds and fertilizer placed into the ground by the opener. The skewed press wheels are connected to an adjusting mechanism that is operable to selectively vary the angle at which the press wheels are skewed with respect to the direction of travel. A one-way castering wheel is also provided to function to caster for tight turns on the side of the implement at the inside of the turn, but automatically locks into a stable position when the implement is converted into a transport position.	11-13-2008

Patent application number	Description	Published
20090272551	Automatic Steering System For An Agricultural Implement - An assembly for facilitating steering of an agricultural implement linkable to a work vehicle is disclosed. The assembly comprises at least a first ground-engaging wheel to engage a ground surface below a frame of the agricultural implement to support the frame above the ground surface. The assembly further comprises a positioning system for receiving a positioning signal from a positioning source. The positioning system determines a current position of the agricultural implement from at least the positioning signal, and the positioning system generates a control signal derived from the current position of the agricultural implement. The assembly further comprises a steering cylinder connected to the first ground-engaging wheel. The steering cylinder operatively connects to the positioning system to steer the first ground-engaging wheel based on the control signal.	11-05-2009

Patent application number	Description	Published
20090273160	STEERING AND ELEVATING WHEEL SYSTEM FOR AGRICULTURAL IMPLEMENT - An apparatus for facilitating steering, height adjustment and transport of a farm implement towed by a vehicle. The implement includes a main frame and a hitch that extends from the frame for linking to the vehicle. The apparatus comprises a wheel support member supported below the frame, at least a first ground engaging wheel supported by the wheel support member for rotation about a first wheel axis and to engage a ground surface below the frame thereby supporting the frame above the ground, a first hydraulic lift cylinder linked between the frame and the wheel support member and controllable to adjust the height of the frame above the ground, and a hydraulic steering cylinder mounted to the wheel support member and controllable to steer the first wheel independent of the state of the first lift cylinder.	11-05-2009