Kondex Corporation

Andrew J Theisen

Keith A Johnson

Neal J Stoffel

Joseph W Schaffer, Sr

Casey Placek

Mark More

A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.

Concave with adjustable openings

A boring bit such as for horizontal directional drilling is provided which includes a hard faced layer that is preferably made by a laser cladding bead. The laser clad bead may be applied in some regions to a greater extent and in other regions to a lighter extent and with thicker coverage or longer regions of application in different regions of the boring bit. Additionally, circumferential segments of the hard faced layer bead may be applied to impart a spiral path on the outer periphery of the boring bit which may be overlapped upon more general hard faced layer application. Further, the hard faced layer may be applied in substantially complete coverage over carbide insert teeth that are embedded within the steel base of the boring bit body.

Boring bit or other bit with hard face wear resistance material

A boring bit or other component for horizontal directional drilling is provided which includes a hard faced layer that is preferably made by a laser cladding bead. A subsequent or post heat treatment is applied to modify the heat affected zone (HAZ) to eliminate or reduce the hard brittle regions and/or softer regions in the base iron or steel material of the HAZ. Further, the hard faced layer may be applied in combination with carbide insert teeth that are embedded within the steel base of the boring bit body, such as by press fitting.

Boring bit component with hard face wear resistance material with subsequent heat treatment

The concave section includes a first concave body. The first concave body includes a first leading end, a first trailing end, a first upstream side and a first downstream side. A width between the first upstream side and the first downstream side is no greater than 10 inches. The first concave body includes a first crop engagement face that extends between the first ends and the first sides. The first crop engagement face includes at least one of a first thresher profile portion and a first separator profile portion.

Multi-thresh concave section for rotary combine

A blade for a mower disc body is provided. The blade includes a cutting blade body of a first base material, top and bottom surfaces and an outer surface that extends around the cutting blade body vertically between the top and bottom surfaces. The blade further includes a cutting edge formed along the outer surface and a plurality of clad beads extending along one of the top and bottom surfaces transversely away from the non-serrated cutting edge.

Growing community of inventors

Fond du Lac, WI, United States of America

Andrew J Theisen