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US 5,669,946 AGranted
Air particulate filtration device
OwnerEarl W. Blair, Jr.inventor
Life of this patent
Estimating the term…
Abstract
An air particulate filtration device designed to filter the primary filtration exhaust from a mechanical abrading dust collection device. The filtration device includes a flexible duct used to guide a positive pressure air stream from a mechanical abrading dust collection device into a receptacle partially filled with a liquid and buoyant packing material. The buoyant packing material aids in increasing the surface liquid contact with the positive pressure air stream. The fine dust and particulates that contact the liquid settle to the bottom of the receptacle. The positive pressure air stream passes though a final air filter located near the top of the filtration device after making contact with the liquid surface.
Claims14
An air scrubbing device for removing particulates, comprising, in combination:
- a. a receptacle having an open end for holding a quantity of liquid, said quantity of liquid having a liquid surface;
- b. a removable air filter secured to said receptacle above said liquid surface;
- c. a removable lid for covering said open end of said receptacle;
- d. a layer of unsupported, buoyant packing material comprising a plurality of mobile, unattached, individual bodies floating on top of said liquid surface inside said receptacle;
- and
- e. means for conveying a positive pressure air stream downward into said layer of buoyant packing material and through said air filter into the ambient air environment such that, in the process, said positive pressure air stream becomes thoroughly mixed with said quantity of liquid inside said receptacle causing said mobile, unattached, individual bodies to circulate from said liquid surface throughout said quantity of liquid whereby fine dust and particulates in said positive pressure air stream are captured by said quantity of liquid.
3 more elements
An air scrubbing device for removing particulates, comprising, in combination:
- a. a receptacle having an open end for holding a quantity of liquid, said quantity of liquid having a liquid surface;
- b. a removable air filter secured to said receptacle above said liquid surface;
- c. a removable lid for covering said open end of said receptacle and clamped to said receptacle;
- d. a layer of buoyant packing material over said liquid surface inside said receptacle, said layer of buoyant packing material comprising a plurality of mobile, unattached, individual bodies made of high density plastic and spherical in shape;
- e. means for conveying a positive pressure air stream downward into said layer of buoyant packing material and through said air filter into the ambient air environment such that, in the process, said positive pressure air stream becomes thoroughly mixed with said quantity of liquid inside said receptacle causing said mobile, unattached, individual bodies to circulate from said liquid surface throughout said quantity of liquid whereby fine dust and particulates in said positive pressure air stream are captured by said quantity of liquid.
2 more elements
A device for removing and capturing air particulates from a positive pressure air stream, comprising, in combination:
- a. an enclosed containment vessel having an air intake and air outlet through which said positive pressure air stream is conveyed such that said enclosed containment vessel comprises:
- i. a receptacle having an open end for holding a quantity of liquid, said quantity of liquid having a liquid surface;
- ii. a removable air filter secured to said receptacle above said liquid surface, said air filter serving as said air outlet of said enclosed containment vessel;
- iii. a removable lid for covering said open end of said receptacle;
- b. a duct for conveying said positive pressure air stream into said enclosed containment vessel;
- and
- c. a layer of unsupported, buoyant packing material comprising a plurality of mobile, unattached, individual bodies floating on top of said liquid surface inside said receptacle creating a thorough mixing between said positive pressure air stream and said liquid surface causing said mobile, unattached, individual bodies to circulate from said liquid surface throughout said quantity of liquid whereby fine dust and particulates in said positive pressure air stream are captured by said quantity of liquid.
4 more elements
A device for removing and capturing air particulates from a positive pressure air stream, comprising, in combination:
- a. an enclosed containment vessel having an air intake and air outlet through which said positive pressure air stream is conveyed such that said enclosed containment vessel comprises:
- i. a receptacle having an open end for holding a quantity of liquid, said quantity of liquid having a liquid surface;
- ii. a removable air filter secured to said receptacle above said liquid surface, said air filter serving as said air outlet of said enclosed containment vessel;
- and
- iii. a removable lid for covering said open end of said receptacle, said lid being clamped to said receptacle;
- b. a duct for conveying said positive pressure air stream into said enclosed containment vessel, said duct comprising:
- i. a flexible duct having a first and second end, said first end connected to said positive pressure air stream;
- and
- ii. a vessel duct having an inlet air end and a receptacle end, said vessel duct secured to, and passing through, said lid, said receptacle end of said vessel duct extending into said layer of buoyant packing material inside said receptacle above said liquid surface, said second end of said flexible duct being removably attached to said inlet air end of said vessel duct;
- and
- c. a layer of unsupported, buoyant packing material comprising a plurality of mobile, unattached, individual bodies made of high density plastic and spherical in shape floating on top of said liquid surface inside said receptacle creating a thorough mixing between said positive pressure air stream and said liquid surface causing said mobile, unattached, individual bodies to circulate from said liquid surface throughout said quantity of liquid whereby fine dust and particulates in said positive pressure air stream are captured by said quantity of liquid.
8 more elements
Dependencies are inferred from the claim text.