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. 24, 1989
Filed:
Sep. 11, 1987
Applicant:
Inventor:
Klaus Smolik, Gefrees, DE;
Assignee:
Helsa-Werke Helmut Sandler GmbH & Co. KG, Gefrees, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502416 ; 502400 ; 502527 ; 502402 ; 55316 ; 55387 ; 55524 ;
Abstract
In a process for the production of a filter material comprising an open-pore foam carrier carrying adsorber particles of different particle sizes secured thereto, an adhesive is applied to the foam carrier material and then first adsorber particles are applied to the foam carrier material and into the open pores thereof. When the adhesive is still in a non-set condition, second adsorber particles which are of substantially smaller size than the first adsorber particles are then applied to the foam carrier material and into the open pores thereof.