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:
Jan. 27, 2009
Filed:
Apr. 09, 2008
Andreas Kleineidam, Elmshorn, DE;
Wilhard Kleineidam, Hamburg, DE;
Andreas Kleineidam, Elmshorn, DE;
Wilhard Kleineidam, Hamburg, DE;
Nordson Corporation, Westlake, OH (US);
Abstract
The invention concerns a process and a device () for the pneumatic conveyance of powdered material (), in which a cylindrical chamber (), which can be connected with a reservoir () by a sealable inlet () and with a delivery line () by a sealable outlet (), is alternately filled with material from the reservoir () and emptied of this material by applying a negative pressure to the chamber with its outlet () closed and its inlet () open through a bordering wall formed by a gas-permeable filter element () to draw material into the chamber () from the reservoir (), and by then admitting a gas under pressure into the chamber () with its inlet () closed and its outlet () open to force the material previously drawn into the chamber () out of the chamber and into the delivery line (). To prolong the service life of the filter element () and to avoid contamination of the filter element more easily, it is proposed, in accordance with the invention, that the filter element () be designed as a hollow cylinder and that it surround at least a portion of the chamber ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile