Air filtration indicator
AssigneeDelta International Machinery Corp.
InventorDavid Miller
Life of this patent
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Abstract
A fluid filtration system, such as an ambient air cleaner, employs a measurement mechanism to determine the amount of fluid flow through the system. The measurement system provides data or actuates an indicator. The indicator may have a pointer to indicate fluid flow along a gradient display that contains numeric information and/or is color coded. Alternatively, fluid flow may be displayed electronically. The indicator may be protected within a separate housing that projects from a filtration unit housing or may be disposed within a recess of the filtration unit housing.
Claims36
An ambient air filtration system, comprising:
- a housing;
- an air intake on a side of the housing, the air intake receiving ambient air;
- a first air filter within the housing which filters the ambient air it receives from the air intake;
- an airflow measurement mechanism within the housing that measures an airflow rate of the filtered air from the first air filter, the air flow measurement mechanism including a flap supported by a shaft within an air channel after the first air filter;
- an indicator coupled to the air flow measurement mechanism which displays the air flow rate measured by the air flow measurement mechanism, the indicator including a pointer that is driven by the shaft;
- and
- an air outlet for passing the filtered ambient air out of the housing.
A gas filtration system, comprising:
- a means for receiving a gas;
- a means for guiding the flow of the gas;
- a means for filtering the gas;
- a means for measuring the flow rate of the gas, the means for measuring being at least partly electronic;
- a means for indicating a characteristic regarding the flow rate of the gas.
An ambient air filtration system, comprising:
- a housing;
- an air intake on a side of the housing, the air intake receiving ambient air;
- a first air filter within the housing which filters the ambient air it receives from the air intake;
- an airflow measurement mechanism within the housing that measures an airflow rate of the filtered air from the first air filter, the air flow measurement mechanism including a flap supported by a vertically oriented shaft within an air channel after the first air filter;
- an indicator coupled to the air flow measurement mechanism which displays the air flow rate measured by the air flow measurement mechanism;
- and
- an air outlet for passing the filtered ambient air out of the housing.
Dependencies are inferred from the claim text.