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:
Sep. 12, 2000
Filed:
May. 27, 1999
Applicant:
Inventors:
Andreas Rutz, Lindau, DE;
Friedrich Mueller, Remscheid, DE;
Assignee:
Lindauer Dornier Gesellschaft mbH, Lindau, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210232 ; 210249 ; 210340 ; 210420 ; 210450 ;
Abstract
A filter for filtering plastic melt prior to feeding the melt into an extruder nozzle, for example a thermoplastic film extruder nozzle, has preferably two filter housings for holding respective exchangeable filter cartridges. Both filter housings are articulated by hinges to a column mounting so that one filter housing can be serviced while the other filter housing with its filter cartridge is in a filtering position and vice versa. A single filter may be used alternatively. In both instances the column mounting may include at least one, preferably two, mounting columns.