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:
Mar. 29, 1977
Filed:
Jan. 08, 1976
Applicant:
Inventor:
Staffan Jansson, Vaxjo, SW;
Assignee:
Aktiebolaget Svenska Flaktfabriken, Nacka, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55357 ; 55379 ;
Abstract
Apparatus for detachably locking a gas filter in operative position in a wall opening, wherein the upper end of the bag has a circumferential thickened portion which is retained, in a converging section of a socket mounted in the opening, by means of a locking cylinder which fits closely within the socket and within the upper end of the bag and is readily insertable and removable by means of a foldable handle thereon.