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:
Nov. 08, 2011
Filed:
Mar. 17, 2009
Stefan Hajek, Amberg, DE;
Urs Herding, Ursensollen, DE;
Kurt Palz, Crailsheim, DE;
Wolfgang Raabe, Amberg, DE;
Reiner Thuerauf, Amberg, DE;
Bernd Meindl, Sulzbach-Rosenberg, DE;
Stefan Hajek, Amberg, DE;
Urs Herding, Ursensollen, DE;
Kurt Palz, Crailsheim, DE;
Wolfgang Raabe, Amberg, DE;
Reiner Thuerauf, Amberg, DE;
Bernd Meindl, Sulzbach-Rosenberg, DE;
Herding GmbH Filtertechnik, Amberg, DE;
Abstract
A method for filtering out foreign particles from a cooling lubricant used in a process of machining a workpiece includes providing an inherently stable, flow-porous filter element. The filter element comprises a porous main body made of joined plastics particles and having an afflux surface and a porous coating on the afflux surface for surface filtration. The porous coating first component particles and/or fibres, second component anti-adhesion particles to mitigate the adhesion of filtered out material to the porous coating and to facilitate cleaning of the filter element, with the first component particles and/or fibres and the second component particles being mixed in the porous coating, a solidified inorganic binder, and a set adhesive. The solidified inorganic binder and the set adhesive bind the first component particles and/or fibres and the second component particles to each other and to the porous main body. The cooling lubricant is first passed through the porous coating and thereafter through the porous main body of the filter element.