Deere + Company

Robert Eugene Lorentzen

Kent Alvin Klemme

Klaus Hahn

Adam Joe Shuttleworth

Willy Peeters

Heiko Eberbach

Ralf Hirschpek

An agricultural field sprayer () includes an electrically driven pump () locatable directly under sprayer fluid tank for conveying the fluid from the tank to a supply line. A return line () connects the pump () to the tank (), and a sprayer line () connecting the pump () to an application assembly (). The return line () and the sprayer line () include electrically operated control valves (), and an electronic control system () operates the motor () and the control valves () as a function of different variables including field sprayer speed and sprayer fluid characteristics. The valve and motor controls and an additional valve-controlled return line facilitate numerous operational modes including tank fill, rinse, recirculation, spray, partial width spray, and stop modes.

Agricultural field sprayer and process for its operation

A joint structure for a liquid or semi-liquid sealant is provided to facilitate the sealing engagement of plural structural members without having sealant protruding from the joint in a visible area. The joint structure comprises a first structural member having a channel with a first wall, a second wall generally opposite the first wall and a third wall connecting the first and second walls. The third wall is disposed at an acute angle to the first wall and at an obtuse angle to the second wall. A second structural member has a tongue portion for matably engaging the channel of the first structural member. The tongue portion has a first wall, a second wall generally opposite the first wall, and a third wall connecting the first and second walls. The third wall is disposed at an obtuse angle to the first wall and at an acute angle to the second wall. The angle of the third wall of the channel is opposite that of the third wall of the tongue portion, such that a cross-sectional area between the tongue portion and the channel is larger on one side than on the other when the tongue portion is matably received in the channel. Accordingly, a bead of sealing material can be applied between the channel and the tongue portion and excess sealing material is directed toward the larger side of the cross-sectional area.

Joint structure for liquid or semi-liquid sealant

Growing community of inventors

Sturgeon, MO, United States of America

Robert Eugene Lorentzen