A blow-through rotary valve is provided which has a modified geometry to reduce wear from pneumatic conveying of particulate and/or bulk material.

A rotary valve including a housing with a removable housing cover, a rotor within the housing which is at least partially placeable outside the housing by detaching and displacing the housing cover away from the housing so as to enable access for cleaning or inspection of the rotary valve, wherein an end portion of a shaft of the rotor is mounted in a bearing assembly supported by the housing cover, which bearing assembly comprises a first bearing and a second bearing that are adjustable in position so as to maintain the shaft of the rotor in a level orientation with reference to the housing when the housing cover is moved away from the housing, wherein the first bearing and the second bearing are movable with respect to each other in a direction transversely to a longitudinal direction of the shaft.

An air cart for distributing air entrained particulate material from a chamber or tank to a plurality of distribution lines for application to an agricultural field has a tank refilling feature utilizing air flow from the cart distribution system or from a dedicated pneumatic source. The cart conveying system air flow is diverted and passed through an assembly containing multiple venturis which also receives particulate material from a supply source. The air entrained material from the source is conveyed to and gently deposited in the cart tank. Exhaust air from the tank may be directed back into the cart conveying system or vented through an air diffuser located beneath the cart. Exhaust air which is directed back to the cart conveying system may return to a location closely adjacent that from which it was originally diverted.

A powder supply device that continuously supply a fixed amount of powder, including a powder accommodation container including a powder delivery hole in an circular outer shape bottom plate, and a disk that continuously rotates and conveys the powder by a groove facing the powder delivery hole and provided on circumference, wherein the disk is disposed to be slidably rotatable with respect to the circular outer shape bottom plate in a state in which a part of a region where the groove is located is covered with the circular outer shape bottom plate of the powder accommodation container.

A fastening system having a supporting strip, to which is fastened, outside the housing of the rotary feeder, a seal designed to seal the blade of the rotor in relation to the housing. The mounted unit of supporting strip and seal is inserted into a groove devised in the blade. This installation unit is then secured to the blade by means of securing screws. The seal can be made from a hard seal, especially steel, or a soft seal, especially rubberized textile, attached on the outside by a locating strip.

A fastening system having a supporting strip, to which is fastened, outside the housing of the rotary feeder, a seal designed to seal the blade of the rotor in relation to the housing. The mounted unit of supporting strip and seal is inserted into a groove devised in the blade. This installation unit is then secured to the blade by means of securing screws. The seal can be made from a hard seal, especially steel, or a soft seal, especially rubberized textile, attached on the outside by a locating strip.

A fastening system having a supporting strip, to which is fastened, outside the housing of the rotary feeder, a seal designed to seal the blade of the rotor in relation to the housing. The mounted unit of supporting strip and seal is inserted into a groove devised in the blade. This installation unit is then secured to the blade by means of securing screws. The seal can be made from a hard seal, especially steel, or a soft seal, especially rubberized textile, attached on the outside by a locating strip.

A rotary valve including a housing with a removable housing cover, a rotor within the housing which is at least partially placeable outside the housing by detaching and displacing the housing cover away from the housing so as to enable access for cleaning or inspection of the rotary valve, wherein an end portion of a shaft of the rotor is mounted in a bearing assembly supported by the housing cover, which bearing assembly comprises a first bearing and a second bearing that are adjustable in position so as to maintain the shaft of the rotor in a level orientation with reference to the housing when the housing cover is moved away from the housing, wherein the first bearing and the second bearing are movable with respect to each other in a direction transversely to a longitudinal direction of the shaft.

A method of manufacturing a meter roller for an agricultural metering system includes stretching a sealing ring. The method also includes disposing the sealing ring between a first ring of a spindle and a second ring of the spindle. The first ring and the second ring are rigidly coupled to a driven shaft of the spindle, and the driven shaft is configured to engage a drive shaft to facilitate rotation of the spindle. In addition, the method includes enabling the sealing ring to contract such that an outer diameter of the sealing ring is less than or equal to an outer diameter of the first ring and an outer diameter of the second ring.

A rotary feeder having a stationary, cylindrical housing having disposed therein a number of injection nozzles, and within which rotate a plurality of vanes about a central axis, wherein pairs of adjacent vanes of the plurality of vanes define wedge volumes, wherein the housing extends a width along the central axis, wherein each of the vanes has a length along the central axis, and wherein the injection nozzles are positioned across the width of the housing, such that a spray pattern of a gas injected via the number of injection nozzles spans substantially the entire length of the vanes.