Ford New Holland, Inc.

Buhler Ezee-on Inc.

Grant Howard Adolph

Sylvio Tessier

Gary Bergen

Larry Beever

Kel W Loewen

Leo V Turko

James Eichele

Ryan Pinfold

Brian L Newbery

Tim Strydhorst

Sean Lewis

A seeder includes a frame on ground wheels defining tool bars for seeding elements spaced across the frame. Each element includes a pair of parallel arms connected to the tool bar bracket forming a parallel linkage for up and down movement of a support arm connected at a rear end and carrying the packer wheel. A spring applies a downward spring force on the parallel linkage to apply a downward force on the packer wheel so that the spring force increases as the parallel arms pivot upwardly and decreases as the parallel arms pivot downwardly. A control device is arranged to raise and lower the tool bar in response to a detected value of a sensor so as to change the angle of the parallel linkage and change the spring force. A cam controlled double rack adjustment of the height of the opener allows the user to change seeding depth.

Tool control system for agricultural seeders

An operator's control station for a hydrostatically driven tractor in which the operator's control station is rotatable to orient the operator selectively in opposing directions is disclosed wherein a control panel having control devices for manipulating operative functions of the tractor is connected to a pan member supporting the seat cushion receiving the operator such that the control panel rotates with the operator's control station. The pan member is positioned above both the fore-and-aft adjustment mechanism and the height adjustment mechanism for the seat so that the control panel is maintained in a constant positional relationship relative to the operator irrespective of the adjusted position of the seat relative to the steering mechanism.

Rotatable operator control station

Growing community of inventors

Winnipeg, Canada

Grant Howard Adolph