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. 13, 2001
Filed:
Aug. 26, 1999
Applicant:
Inventors:
Helmut Maginot, Burgkirchen, DE;
Armin Grossmann, Burghausen, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B 1/04 ;
U.S. Cl.
CPC ...
B65B 1/04 ;
Abstract
A large drum for containing high dispersion, high air content solids for repeated filling and emptying by means of vacuum filling plants and a method for filling them. The drums consist of at least two layers, an inner layer consisting of uncoated air-permeable fabric and an outer layer being coated so as to be dust tight and provide a moisture barrier. These layers being connected to one another by means of a special seam, so that it is possible for the drum to be deaerated solely through this seam. The seam includes an air-permeable dust-retaining filter strip material disposed between the drum layers.