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:
Apr. 28, 1992
Filed:
Sep. 25, 1990
Applicant:
Inventors:
Assignee:
Schleicher & Schuell GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L / ;
U.S. Cl.
CPC ...
422101 ; 422104 ; 403338 ; 210 94 ; 210446 ; 55503 ; 55510 ;
Abstract
The color coded disposable-filter holder 1 of the invention comprises of a first molded pane-like housing part 2 with an intake stub 3 and a second molded pane-like housing part 4 comprising a discharge stub 5. The two housing parts 2, 4 are rigidly joined in pressure-resistant and hermetic manner at their radially outer zones 7 pointing to each other while enclosing a planar filter 6. This disposable-filter holder is provided with a color coding consisting of a dyed plastic in the form of a prefabricated plastic ring or plastic clip 9 present in an annular groove 8 in the radially outer zone of the disposbale-filter holder.