Abstract:
A device comprises a cylinder and a tank. The cylinder includes a first disc and a second disc, multiple struts arranged orthogonally between the first disc and the second disc, and a plurality of walls, parallel to the first disc and the second disc. The struts generally form a circumference with spaces between each of the struts along the circumference; the walls extend through the space between the struts and beyond the circumference of the struts; and the walls form a plurality of tracks around the circumference of the struts. An axle extends orthogonally between the first disc and the second disc, and at least a portion of the cylinder rotates about the axle. The tank includes a basin to hold a liquid solution. When a catheter is wound around the cylinder, the rotation of the cylinder causes the catheter to be coated in the liquid solution from the basin.
Abstract:
The invention is directed to apparatus and methods for contacting gas and solids in the manufacture of edibles, and particularly in connection with coating edible particulate solids. A drum is positioned around an inner tube so that an annular space is defined between the drum and the tube. A rotatable spiral element defines a gas pathway in the annular space, such that rotation of the spiral pushes particulate solids through the drum while the solids are contacted with gas in the annular space.
Abstract:
The invention concerns a coating drum (60) for a single drum or, as the case may be, a multi-drum circulating coating device. The inside of the drum is subdivided into two rotation-symmetrical drum chambers (61 and 62) via a separating wall (67), which chambers are fillable with equal dispensed amounts of small parts through oppositely lying openings (73) of the drum casing (63). The openings (73) are closeable via lids or covers (68) provided pivotable on the drum (60).
Abstract:
The invention provides an apparatus and method for creating dry coated particulates from particulates and a liquid. A mixer receives the particulates and liquid and creates a wet mixture which is then subjected to hot air from a hot air generator to dry the mixture and produce the dry coated particulates. In a preferred form the apparatus includes a floating coupling between the mixer and the generator to permit some relative movement, and load cells are used to control the amount of particulates loaded into the mixer. There is similar control of the liquid and a control console is provided to receive data and send instructions to cause the apparatus to cycle through repetitive batch processes in a continuous process. The mixer preferably includes structure to cause the hot air to enter the mixture as it moves downwardly in the mixer for enhanced drying.
Abstract:
An apparatus is provided for uniformly coating particulate material. The apparatus includes a frame, a cylindrical drum rotatable about an axis tilted with respect to a horizontal plane, and a spray nozzle extending into the drum so as to spray a coating solution onto the particulate material tumbled within the rotating drum. Perforations in the side wall of the drum allow a flow of air through the drum so as to dry the material within the drum as it is coated with solution. A vacuum system removes the coated seeds from the drum without manual handling. In operation, the seeds form a dense mass, and migrate away from the mass as the seeds increase in size and weight from the sprayed coating. Eventually, all of the particles are uniformly coated, and thus a new mass is formed and the process repeated until the material reaches a desired size.
Abstract:
There is disclosed an article treating apparatus particularly apparatus for pressure-impregnating or vacuum impregnating porous articles such as metal castings. A holder for the articles or a metal basket containing them is disposed in an autoclave and can be rotated about a horizontal axis. It has a horizontal through-passageway so that articles to be treated can be simultaneously loaded at one end of the passageway and unloaded at the other end of the passageway by an indexing mechanism. The indexing mechanism has a plurality of pusher arms which can be moved laterally into the path of the articles and then moved horizontally to push the articles along rails into and out of the passageway. The holder is stopped at a predetermined rotary position in which a longitudinal slot is opposite the pusher arms so that unloading and loading may be effected simultaneously with a single movement of the indexing mechanism, a pusher arm passing completely through the slot. The lower part of the pressure vessel contains liquid impregnant and the holder can be rocked between an upper loading and unloading (and spin) position and a lower immersed position.
Abstract:
In a rotary drum spray grainer there is provided a deflector plate overlying the spraying nozzles in the spraying zone to provide a drying zone where spray grained particles fall in a substantially uninterrupted downward path through the drying gas.
Abstract:
The invention comprises a method for providing a coating to objects such as a lens. A bath of coating solution is provided and the objects are immersed into the solution and removed from the solution at a constantly changing speed. The speed of removal is slower at the top and bottom of the object and faster at the midpoint of the object. Thus the coating is thinner at the top and bottom and thicker at the center (where greater abrasion resistence is required). The slower speed at the removal of the bottom edge of the lens from the solution provides a thin coating and eliminates the formation of coating drip lines and puddles.
Abstract:
An apparatus is disclosed for subjecting articles to a forceful air stream while confined within a tumbling barrel having a perforated peripheral wall. The apparatus comprises pivotally connected shroud members that are adapted to sealingly enclose the barrel, but to leave uncovered a bottom longitudinal portion of the perforated wall. Air is blown into the shroud members about the barrel and flows into the barrel through the perforated wall and thereafter out the barrel through the uncovered wall portion, thereby forcefully flowing over the confined articles to dislodge solution clinging thereto.