Abstract: A radial shaft seal for a radial shaft is formed with a casing having an exterior-facing surface opposite from an interior-facing surface, and a sleeve positioned radially inwardly of the casing that rotates with respect to the casing. A sealing ring is connected to the casing, and has an extending portion that interacts with the sleeve to form a labyrinth seal barrier.

Abstract: A plug for a drain and grain-emptying opening for a grain compartment on a harvesting apparatus prevents clogging of the opening. The grain compartment has an auger casting for supporting a vertical unloader auger. The auger casting has openings therethrough that serve as a bottom drain for the grain compartment. The drain system includes a plug having plug bodies sized and shaped to be inserted into the openings to effectively close a bottom of the grain compartment. The openings comprise crescent shapes in horizontal cross-section, and the plug bodies comprise corresponding crescent shapes in horizontal cross-section. The plug bodies can have lengths substantially equal to depths of the openings. The plug of the invention is made from a soft plastic, which molds to the bottom surface of the casting and eliminates the need for a sealable casting cover.

Abstract: A discharge chute for the unloading auger of a combine is provided with a discharge opening which provides maximum discharge flow rate and maximum clearance for moving and positioning of the auger. The discharge chute has an upper surface extending downwardly at a first angle relative to a horizontal plane, and a lower surface extending downwardly in a second angle relative to a horizontal plane. The first angle of the upper surface is greater than the second angle of the lower surface. The discharge chute also includes an internally mounted dribble door pivotal between raised and lowered positions. The door prevents grain dribble when in the upper position, and allows unobstructed grain discharge when in the lowered position.

Abstract: A discharge chute for the unloading auger of a combine is provided with a discharge opening which provides maximum discharge flow rate and maximum clearance for moving and positioning of the auger. The discharge chute has an upper surface extending downwardly at a first angle relative to a horizontal plane, and a lower surface extending downwardly in a second angle relative to a horizontal plane. The first angle of the upper surface is greater than the second angle of the lower surface. The discharge chute also includes an internally mounted dribble door pivotal between raised and lowered positions. The door prevents grain dribble when in the upper position, and allows unobstructed grain discharge when in the lowered position.