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. 15, 1994
Filed:
Jun. 11, 1993
Applicant:
Inventors:
Rudolf Simon, Korntal-Munchingen, DE;
John C Dryden, San Jose, CA (US);
Franz Schlitz, Boblingen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
553852 ; 55471 ; 55472 ; 55495 ;
Abstract
A cleaning device for a clean room has at least two filter-fan units each comprising a filter and a fan. Connecting elements connect the filter-fan units to one another to form a self-supporting construction unit. Each filter-fan unit comprises a housing having profiled elements for engaging the connecting elements in the form of bars or angled pieces. The connecting elements can be T-shaped or cross-shaped. The construction units can be supported on supports on the floor or suspended from the ceiling.