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:
Apr. 21, 2020
Filed:
Mar. 14, 2016
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Abstract
A blower filter respirator system () has a filter element () for filtering ambient air (), a blower unit () and a face part () with a tube element ()—face part/tube combination ()—for feeding an amount of breathing air () to a user (). A pressure sensor () is on an outlet side () of the blower unit () measuring breathing air pressure values () by detecting a pressure difference on the outlet side () of the blower unit () against the ambient air (). A control unit () is configured to operate the blower unit () and control breathing air () and is configured to determine a desired pressure value () for current operation with the face part/tube combination () from operation-related properties () of the blower unit () and specific properties of the face part/tube combination () and for comparing with the current pressure value ().