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:
Jul. 28, 1992
Filed:
Jan. 30, 1991
Applicant:
Inventor:
Hakan R Karlsson, Eslov, SE;
Assignee:
AB Ph. Nederman & Co., Helsingborg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
454 56 ; 454 65 ;
Abstract
A said suction hood (1) being connected to a gas extraction system (7) and preferably suspended on a movable arm system (4) permitting the suction hood (1) to be set in various positions relative to an area (2) from which the injurious gases (G) are extracted. For substantially increasing the depth of the suction hood when required, the suction hood (1) includes at least one and preferably three movably mounted wall elements (15, 16, 17) which is or are settable in a folded position or folded positions and which is or are unfoldable into a position or positions wherein it or they gives or give the suction hood (1) a fume cupboard like shape and function.