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. 02, 2011
Filed:
Mar. 03, 2006
Anders Hedelund Nielsen, København N., DK;
Anders Hedelund Nielsen, København N., DK;
Nilfisk-Advance A/S, Brondby, DK;
Abstract
In order to measure the degree of filling of a dust collector (), where the dust () collected in the dust collector may be of a very varied composition ranging from very fine dust () to rather large particles (), a high pressure difference and a low pressure difference are measured by two differential pressure meters (), where the one differential pressure meter () measures the pressure difference between the compartment () of the dust collector, in which the dust collector () is arranged, and a measurement position at the connecting stub () of the vacuum cleaner, as is known, while the other differential pressure meter () measures between two measurement positions inside the connecting stub (). Hereby, the method and the filling indicator according to the invention will ensure that larger particles do not settle inside the connecting stub () since these are detected beforehand by the differential pressure meter () which records lower pressure differences that the differential pressure meter ().