Fume extraction device having system for validating credentialed filters
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Publication Number
US-9734305-B2
Publication Date
2017-08-15
Expiration Date
Abstract
A fume extraction apparatus (1) which comprises an identifier module (20a; 20b) capable of communicating a credential signal over an air interface, a receiver (31) for receiving the credential signal and validating the same, the identifier module attached to a removable filter unit (5; 6); and the receiver is secured to a body of the apparatus, which body removably receives the filter unit.
Core Innovation
The invention relates to a fume extraction filtration apparatus in which removable filter units carry an identifier module capable of wirelessly communicating a credential signal. The credential signal is received by a receiver secured to a body of the apparatus, where the body is configured to removably receive the filter unit, and the receiver validates the credential signal to enable or inhibit operation of the apparatus.
The apparatus comprises a control unit connected to the receiver. The control unit includes a memory storing one or more valid credential codes and a processor configured to compare a credential signal received from the removable filter unit with the valid credential codes stored in the memory. The comparison is performed in response to an operator-initiated signal to commence operation, and the processor performs a validation process to determine whether the received credential signal corresponds to an acceptable credential signal.
Activation of the fume extraction filtration apparatus is allowed only when the credential signal is valid, and activation is prevented when the credential signal is invalid. The removable filter units are provided with identifier modules to support ensuring correct filter type and combination before the apparatus is permitted to activate.
Claims Coverage
The document contains one independent claim. It sets out multiple inventive features centered on a removable filter unit with a wireless identifier, a secured receiver, and a control unit that compares received credential signals against stored valid credential codes to allow or prevent activation in response to an operator-initiated start signal.
Wireless credential identifier on a removable filter unit
An identifier module is attached to a removable filter unit and is capable of wirelessly communicating a credential signal.
Secured receiver configured to validate the credential signal
A receiver is secured to a body of the apparatus, the body configured to removably receive the filter unit, and the receiver receives the credential signal and validates the same.
Control unit comparing credential signals to valid credential codes
A control unit connected to the receiver comprises a memory storing one or more valid credential codes and a processor configured to compare a credential signal received by the receiver from the removable filter unit with the one or more credential codes stored in the memory, wherein the processor performs a validation process to determine whether the received credential signal corresponds to an acceptable credential signal.
Operator-initiated activation enabled only for valid credentials
The control unit performs the comparison in response to receiving an operator-initiated signal to commence operation of the apparatus, allowing activation if the credential signal is valid and preventing activation if the credential signal is invalid.
Across the independent claim, the core claim coverage is the combination of a removable filter unit carrying a wireless identifier module, a secured receiver that validates the received credential signal, and a control unit that compares the received credential signal to stored valid credential codes to permit or prevent activation in response to an operator-initiated signal.
Stated Advantages
Ensures the correct filter type and combination are used before the apparatus is permitted to activate.
Provides safety by preventing operation when properly credentialed filters are not present.
Prevents activation based on invalid credential signals, including non-genuine or insufficient filters as described in the partial content.
Supports safety and OEM customers by providing a credential-validation mechanism for removable filter units.
Documented Applications
Fume extraction filtration apparatus operation using removable filter units with identifier modules that communicate credential signals for enabling or preventing apparatus activation.
Filtering use cases involving extraction of contaminated air through removable filter units as described in the partial content, including safety-relevant filter validation behavior.
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