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:
Aug. 30, 1988
Filed:
Jan. 11, 1988
Applicant:
Inventors:
Nils T Lindquist, Farsta, SE;
Ann-Christine Hedin, Danderyd, SE;
Kurt O Francke, Huddinge, SE;
Milos Vukotic, Skarholmen, SE;
Assignee:
Aktiebolaget Electrolux, , SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15339 ; 55374 ; 55DI / ;
Abstract
In a vacuum cleaner having a disposable dust bag of the kind comprising an attachment plate of cardboard or the like, and a cover adapted to be opened for the replacement of the dust bag, a blocking device is provided which is adapted to prevent closing of the cover when the dust bag is missing. The blocking device includes a slide actuated by a spring to be moved to a first position in which the closing of the cover is prevented, and a toggle-joint mechanism adapted to be actuated by the attachment plate to move the slide to a second position for permitting closing of the cover.