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:
May. 19, 1992
Filed:
Dec. 13, 1990
Helmut Stuble, Spartanburg, SC (US);
LTG Lufttechnische GmbH, Stuttgart, DE;
Abstract
A filter arrangement includes at least one drum-type filter. A suction device is provided for suctioning of the inside of the drum-type filter along a helical line. The suction device includes at least one suction hose and a suction nozzle provided at the free end of the suction hose. The suction nozzle is constructed for contacting the inner side of the drum-type filter. The suction hose is attached to an end portion of a rotatable suction pipe. The end portion is constructed so as to be movable back and forth in longitudinal direction of the drum-type filter, so that movement in longitudinal direction and rotary movement of the end portion of the suction pipe results in a suctioning-off of the cylindrical inner side of the drum-type filter along a helical line.