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. 06, 2024
Filed:
Apr. 09, 2019
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
Achim Volmer, Krummesse, DE;
Martin Schulze, Bad Kleinen, DE;
DRÄGER SAFETY AG & CO. KGAA, Lübeck, DE;
Abstract
A blower filter device () is connectable to a voltage supply unit () and includes a blower unit (), a filter mount (), an internal energy storage unit (), an energy interface (), a current limitation device (), a sensor array () and a control device (). The current limitation device is activated upon disconnecting the energy interface from the voltage supply unit. The activated current limitation device limits the intensity of a current from the energy interface to the internal energy storage device. Upon the voltage supply unit being connected to the energy storage device and a predefined deactivating event is detected, the control device deactivates the current limitation device. The deactivating event is based on a charging voltage of the internal energy storage unit and/or on a time period that has elapsed since the connection. A process is provided for operating such a blower filter device.