The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 1984
Filed:
Jan. 28, 1983
Werner Glatt, Binzen, DE;
Erwin Grab, Rummingen, DE;
Glatt Maschinen-und Apparatebau AG, Pratteln, CH;
Abstract
A process and apparatus for coating particles, particularly particles of medicinal drugs. The apparatus has a rotating drum provided with a perforated cylindrical center section. Particles to be coated are introduced into the interior of the drum and form a layer in a lower quadrant of the cylindrical section during rotation of the drum. A spraying device is located in the interior of the drum for coating the particles with an appropriate mixture or solution. A device is positioned adjacent the portion of the drum containing the particles for introducing gas through the perforations into the layer of particles so as to dry the particles. A device also is provided for removing gas from the drum through the perforations. The device for introducing gas can be separated from the device for removing gas by a central partition, with both devices being carried by a common support. Also, it is possible to introduce gas into a portion of the interior of the drum that is spaced from the layer of particles.