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:
Dec. 04, 1990
Filed:
Dec. 15, 1988
Applicant:
Inventors:
Heinz Holsten, Fintel, DE;
Joachim Bahnemann, Bad Oldesloe, DE;
Assignee:
Hako-Werke GmbH & Co., Bad Oldesloe, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ; A47L / ;
U.S. Cl.
CPC ...
15349 ; 15 7 / ; 15 83 ;
Abstract
A hand-guided sweeping machine has a filter housing pivotally mounted to tilt about an axis to facilitate shaking the filter free of dust. The filter housing outlet is in sealing registry with the blower intake when the housing is lowered, and is moved out of sealing registry when the housing is raised. In the raised position, the filter housing covers the hopper opening so that debris from the filter housing will continue to fall into the hopper. A flap-like sealing arrangement surrounds the filter housing inlet to prevent dust from entering the internal mechanism of the sweeper.