Air purifying device
First Claim
1. An air purifying system comprising:
- a housing including an air inlet, an air outlet, and an internal flow path from the inlet to the outlet;
fan means within the housing adapted to move air through the housing along the flow path and out of the housing through the outlet;
a filter interposed in and spanning the flow path in the housing to filter particulate matter from the air passing through the housing;
an odor neutralizing chamber within the housing partially interposed in the flow path and in flow communication with the flow path and containing an odor neutralizing chemical which vaporizes in the presence of air; and
means for controlling the amount of the odor neutralizing chemical vapor which exits the chamber and enters the air flowing through the housing.
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Accused Products
Abstract
The present invention provides an air purifying system which both filters and neutralizes odors in the air. A housing includes an inlet, an outlet, and an internal flow path from the inlet to the outlet. The outlet is preferably configured to provide a conical exhaust flow path. Fan means are located within the housing to move air through the housing along the flow path and out of the housing through the outlet. A filter is interposed in and spans the flow path of the housing to filter particulate matter from the air passing through the housing. An odor neutralizing chamber within the housing is partially interposed in the flow path. The chamber contains an odor neutralizing chemical which vaporizes in the presence of air. A mechanism is provided for controlling the amount of odor neutralizing chemical vapor which enters the air flowing through the housing.
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Citations
8 Claims
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1. An air purifying system comprising:
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a housing including an air inlet, an air outlet, and an internal flow path from the inlet to the outlet; fan means within the housing adapted to move air through the housing along the flow path and out of the housing through the outlet; a filter interposed in and spanning the flow path in the housing to filter particulate matter from the air passing through the housing; an odor neutralizing chamber within the housing partially interposed in the flow path and in flow communication with the flow path and containing an odor neutralizing chemical which vaporizes in the presence of air; and means for controlling the amount of the odor neutralizing chemical vapor which exits the chamber and enters the air flowing through the housing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An air purifying system comprising:
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a housing including an air inlet, a generally circular air outlet, a frustoconical ramp opening into the outlet and having an included angle of approximately 90°
, and an internal flow path from the inlet to the outlet;fan means located within the housing proximate the frustoconical ramp and adapted to move air through the housing along the flow path and out of the housing through the outlet in a generally conical flow path; a filter interposed in and spanning the flow path in the housing to filter particulate matter from the air passing through the housing; an odor neutralizing chamber within the housing partially interposed in the flow path and in flow communication with the flow path and containing an odor neutralizing chemical which vaporizes in the presence of air; and means for controlling the amount of the odor neutralizing chemical vapor which exits the chamber and enters the air flowing through the housing.
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8. An air purifying system comprising:
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a housing including an air inlet, an air outlet, and an internal flow path from the inlet to the outlet; fan means located within the housing near the air outlet to draw air into the housing through the inlet and along the flow path within the housing, and expel the air through the outlet; a filter interposed in and spanning the flow path within the housing to filter particulate matter from the air passing through the housing; an odor neutralizing chamber within the housing upstream of the filter, said odor neutralizing chamber being partially interposed in the flow path and in flow communication with the flow path and containing an odor neutralizing chemical which vaporizes in the presence of air, said odor neutralizing chamber including at least one pair of openings located in confronting walls in the chamber; and a sliding gate overlapping the odor neutralizing chamber and having a control member manually accessable from outside the housing, said sliding gate having at least one pair of openings selectively engaging the openings in the chamber to control the portion of air passing through the housing which flows through the odor neutralizing chamber and thereby control the amount of odor neutralizing chemical vapor which enters the air flowing through the housing.
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Specification