An acoustic apparatus and method for using a combination of low-frequency and high-frequency vibration of dried food, grain being an example, such that there are a large number of collisions among the individual grain particles for destroying microorganisms that reside on the surface or just below the surface of the grain, are described. Embodiments of the invention permit bulk and continuous processing of the food. It is expected that such collisions do not produce any chemical changes in the food, nor should it have any adverse effects on the taste thereof. Embodiments of the apparatus are applicable to destruction of airborne microorganisms.

A skate wheel conveyor system includes a pair of frame sides of a frame assembly. A plurality of preassembled rollers is received between the pair of frame members. Each of the rollers includes a plurality of wheels interposed between a plurality of spacers and a shaft receiving the plurality of wheels and the plurality of spacers. A quick assembly system retains the rollers between the pair of frame members and minimizing deflections of the preassembled rollers.

A skate wheel conveyor system includes a pair of frame sides of a frame assembly. A plurality of preassembled rollers is received between the pair of frame members. Each of the rollers includes a plurality of wheels interposed between a plurality of spacers and a shaft receiving the plurality of wheels and the plurality of spacers. A quick assembly system retains the rollers between the pair of frame members and minimizing deflections of the preassembled rollers.

A roller conveyor device including a three-line conveyor for conveying objects that form at least three lines extending in a conveying direction. The three-line conveyor includes first conveyor rollers for conveying ones of the objects that form at least one central line of the at least three lines, second conveyor rollers for conveying ones of the objects that form at least one non-central line of the at least three lines, and third conveyor rollers for conveying ones of the objects that form another at least one non-central line of the at least three lines. A rotary shaft of each of the first, second and third conveyor rollers includes a shaft end portion having a projection portion that projects out from a conveying path in a widthwise direction of the conveying path, and the projection portion is to be driven so as to convey the objects in the conveying direction.

A roller conveyor device including a three-line conveyor for conveying objects that form at least three lines extending in a conveying direction. The three-line conveyor includes first conveyor rollers for conveying ones of the objects that form at least one central line of the at least three lines, second conveyor rollers for conveying ones of the objects that form at least one non-central line of the at least three lines, and third conveyor rollers for conveying ones of the objects that form another at least one non-central line of the at least three lines. A rotary shaft of each of the first, second and third conveyor rollers includes a shaft end portion having a projection portion that projects out from a conveying path in a widthwise direction of the conveying path, and the projection portion is to be driven so as to convey the objects in the conveying direction.

A camfeeder system that uses an eccentric disk kicker having a friction surface that contacts surface of a heavy elongated object to smoothly and simultaneously move the elongated object in a transverse direction towards a conveyor and accelerate the elongated object in a lineal direction the conveyor travels. A method of changing a direction a heavy elongated object travels from transverse to lineal using the camfeeder system.

A camfeeder system that uses an eccentric disk kicker having a friction surface that contacts surface of a heavy elongated object to smoothly and simultaneously move the elongated object in a transverse direction towards a conveyor and accelerate the elongated object in a lineal direction the conveyor travels. A method of changing a direction a heavy elongated object travels from transverse to lineal using the camfeeder system.

This disclosure concerns an article and a method for using it. The article enables the user to conveniently stand, temporarily, on the rollers of a roller conveyor. The user sets the article on the roller conveyor, stands on the article, and when finished with his task, steps off the article and removes it from the roller conveyor. The article is made of a material which is light and strong, such as ultra-high molecular weight polyethylene. It features semi-circular recesses in a bottom surface which selectively and operatively receive the rollers of the roller conveyor. Packages can pass on the roller conveyor and the rollers can still turn in many cases, while the package passes next to the article.

This disclosure concerns an article and a method for using it. The article enables the user to conveniently stand, temporarily, on the rollers of a roller conveyor. The user sets the article on the roller conveyor, stands on the article, and when finished with his task, steps off the article and removes it from the roller conveyor. The article is made of a material which is light and strong, such as ultra-high molecular weight polyethylene. It features semi-circular recesses in a bottom surface which selectively and operatively receive the rollers of the roller conveyor. Packages can pass on the roller conveyor and the rollers can still turn in many cases, while the package passes next to the article.

A transport system (S) comprises a guide path (1) and at least one mobile carriage (2) movable along the guide path (1). The guide path (1) comprises a first guide profile (11) and a second guide profile (12). A single pair of rollers (31, 32) are mounted rotatably in an independent way to one another on a first rotation shaft (51) borne by the mobile carriage (2) so as to be in contact with the first guide profile (11). A first pair of rollers (41, 42) and a second pair of rollers (43, 44) are mounted rotatably in an independent way to one another on a second rotation shaft (52) and on a third rotation shaft (53) borne by the mobile carriage (2) so as to be in contact with the second guide profile (12).