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:
Mar. 19, 1991
Filed:
Sep. 01, 1988
Peter Steiger, Herisau, CH;
Ransburg-Gema AG, , CH;
Abstract
Fluidized powder in a powder preparation container is treated to impart to it a desired moisture content through the feeding into the fluidized powder of a stream of compressed air whose moisture content and temperature have been carefully regulated. Powder in the preparation container which has attained the desired moisture content is then transferred to a powder holding container and from there to a spraying device by which spraying device the powder is electrostatically charged and sprayed on articles. Further, the powder preparation container is heated along several distinct heating zones which are arranged one above the other along the axis, i.e. height, of the container. The powder in the powder preparation container is stratified with the powder at the bottom of the container being affected only negligibly by the continuous introduction of fresh powder through the top of the container.