Noise control for an air filtration assembly
AssigneeApex Brands, Inc.
InventorsRalf ZERWECK, Bernd NIEDERMAYER
Life of this patent
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Abstract
An air filtration assembly for filtering gas or particles generated responsive to operation of a work tool may include an intake which may be repositionable relative to the work tool, a housing which may be operably coupled to the intake and may include a filter, a motor and processing circuitry, an exhaust operably coupled to the housing and an active noise control (ANC) assembly to reduce noise generated by the air filtration assembly, which may include a sensor and a speaker. The processing circuitry may control the operation of the air filtration assembly. Air may enter the air filtration assembly at the intake responsive to operation of the motor, before passing through the filter and exiting out the exhaust.
Claims22
An air filtration assembly for filtering gas or particles generated responsive to operation of a work tool, the air filtration assembly comprising:
- an intake repositionable relative to the work tool;
- a housing operably coupled to the intake, the housing comprising a filter, a motor and processing circuitry;
- an exhaust operably coupled to the housing;
- and
- an active noise control (ANC) assembly to reduce noise generated by the air filtration assembly, the ANC assembly comprising a sensor and a speaker,
- wherein air enters the air filtration assembly at the intake responsive to operation of the motor, before passing through the filter and exiting out the exhaust, and
- wherein the processing circuitry is configured to control operation of the air filtration assembly.
An active noise control (ANC) assembly for reducing noise generated by an air filtration assembly for filtering gas or particles generated responsive to operation of a work tool, the ANC assembly comprising:
- a sensor configured to detect the noise generated by the air filtration assembly;
- and
- a speaker,
- wherein the ANC assembly communicates with processing circuitry of the air filtration assembly to control the operation of the ANC assembly.
Dependencies are inferred from the claim text.