Air blower and filter assemblies
AssigneeEnvirco Corporation
InventorsWilliam J. Leader, Dennis K. Smith
Life of this patent
Estimating the term…
Abstract
Compact blower and filter assemblies for providing clean air to work place and other enclosed environments wherein the blower cooperates with an intermediate baffle to direct incoming air radially outwardly toward opposite endwalls of the assembly housing after which the air flows downwardly across and through a filter element which closes the discharge end of the housing. The intermediate baffle is generally rectangular in configuration having four corners adjacent which are disposed angled deflectors which direct air inwardly with respect to the corners of the housing as the air passes toward the filter and which incorporates a plate which reflects blower noise.
Claims23
In an air purification apparatus including a housing having opposite sidewalls and opposite endwalls which define a first pair of diagonally oriented corners and a second pair of diagonally oriented corners, an upper and a lower portion, the housing defining an interior plenum chamber with an inlet opening in the upper portion of the housing and a discharge opening in the lower portion of the housing, a blower means mounted within the plenum chamber, means for rotating the blower means, a filter mounted between the blower means and the discharge, a first baffle having opposite sides and opposite ends mounted between the blower means and the filter means, the ends of the first baffle being spaced from the endwalls of the housing, and the blower means being operable to direct airflow along the sidewalls toward the second pair of diagonally oriented corners of the housing, the improvement comprising, a pair of first deflector means extending inwardly of the plenum chamber from each of the sidewalls of the housing adjacent to but spaced from the first pair of diagonally oriented corners, said first deflector means having a portion angled toward an adjacent endwall of the housing, and a second pair of air deflector means extending inwardly of the plenum chamber from each of the sidewalls adjacent to but spaced from the second pair of diagonally oriented corners, said second deflector means having a portion angled toward an adjacent endwall of the housing, whereby as air is directed generally radially outwardly with respect to the blower means, the air will be directed by said first and second deflector means away from said first and second pairs of diagonally oriented corners.
In an air purification apparatus including a housing having opposite sidewalls and opposite endwalls which define a first pair of diagonally oriented corners and a second pair of diagonally oriented corners, an upper and a lower portion, the housing defining an interior plenum chamber with an opening defining an inlet into the plenum chamber and an opening forming a discharge outlet from the plenum chamber, a blower means for directing air from the inlet to the outlet, means for rotating the blower means, a filter mounted within the plenum chamber, a first baffle having opposite sides and opposite ends mounted within the plenum chamber between the inlet and the filter, the ends of the baffle being spaced from the endwalls of the housing, and the blower means and first baffle directing airflow along the sidewalls toward the second pair of diagonally oriented corners, the improvement comprising, a pair of first deflector means extending inwardly of the plenum chamber from each of the sidewalls of the housing adjacent to but spaced from the first pair of diagonally oriented corners, said first deflector means having a first portion spaced from an adjacent endwall of the housing and a second portion angled toward said adjacent endwall of the housing, and second air deflector means extending inwardly of the plenum chamber from each of the sidewalls adjacent to but spaced from the second pair of diagonally oriented corners, said second deflector means having a first portion spaced from an adjacent endwall and a second portion angled toward said adjacent endwall, whereby as air is directed generally radially outwardly with respect to the first baffle, airflow will be directed by said first and second deflector means away from said first and second diagonally oriented corners.
In an air purification apparatus including a housing having opposite sidewalls and an endwall which define first and second corners, an upper and a lower portion, the housing defining an interior plenum chamber with an opening defining an inlet into the plenum chamber and an opening forming a discharge outlet from the plenum chamber, a blower means for directing air from the inlet to the outlet, means for rotating the blower means, a filter mounted within the plenum chamber, a first baffle having opposite sides and opposite ends mounted within the plenum chamber between the inlet and the filter, the ends of the baffle being spaced from the endwall of the housing, and the blower means and first baffle directing airflow along a first sidewall toward the second corner, the improvement comprising, a first deflector means extending inwardly of the plenum chamber from the first sidewall of the housing adjacent to but spaced from the first corner, said first deflector means having a first portion spaced from the endwall of the housing and a second portion angled toward the endwall of the housing, and second air deflector means extending inwardly of the plenum chamber from the other sidewall adjacent to but spaced from the second corner, said second deflector means having a first portion spaced from the endwall and a second portion angled toward the endwall, whereby as air is directed outwardly with respect to the first baffle, airflow will be directed by said first and second deflector means away from said first and second corners.
Dependencies are inferred from the claim text.