US3802162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaner
Assignee: VORTEX AIR CORP
•
Filing: 1973-04-17
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Granted: 1974-04-09
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Expires: 1993-04-17
Abstract
Abstract Dust-laden air into which water is sprayed, is drawn through a two stage impeller assembly to impart vortical movement to the air mass in an axial flow stream causing centrifugal separation of the more dense components from a radially inner portion of the flow stream that is discharged. A venturi tube section accelerates axial flow between the impeller stages. The separated contaminants in the air are collected as a slurry, from annular spaces into which the slurry enters through baffle flow paths.
Inventors
- 👤 C Deane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:26
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10; B01D45/00; B01D45/12; B01D45/14; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
230 words
Apparatus for removing entrained solid particles from a gaseous medium comprising an axially elongated housing having inlet and outlet portions, power operated impeller means mounted within the housing for inducing vortical and axial flow of the gaseous medium between the inlet and outlet portions, venturi passage means mounted within the housing for accelerating axial flow of the gaseous medium through the impeller means, means for injecting a spray of liquid into the gaseous medium entering the venturi passage means, collection means mounted in surrounding relation to the venturi passage means for receiving a mixture of said liquid and solid particles centrifugally separated from the gaseous medium, and baffle means mounted in the housing between the outlet portion and the collection means for enhancing separation of the liquid and solid particles from the gaseous medium exiting from the outlet portion; said impeller means including at least two impeller stages axially spaced upstream and downstream of the venturi passage means, respectively; said venturi passage means including a convergent section having an inlet end extending radially beyond one of the impeller stages, a divergent section having an outlet end radially smaller than the other of the impeller stages and a throat section axially spaced closer to said other of the impeller stages than said one of the impeller stages; and said injecting means being located upstream of said one of the impeller stages.
Claim 2
Dependent Claim
230 words
Apparatus for removing entrained solid particles from a gaseous medium comprising an axially elongated housing having inlet and outlet portions, power operated impeller means mounted within the housing for inducing vortical and axial flow of the gaseous medium between the inlet and outlet portions, venturi passage means mounted within the housing for accelerating axial flow of the gaseous medium through the impeller means, means for injecting a spray of liquid into the gaseous medium entering the venturi passage means, collection means mounted in surrounding relation to the venturi passage means for receiving a mixture of said liquid and solid particles centrifugally separated from the gaseous medium, and baffle means mounted in the housing between the outlet portion and the collection means for enhancing separation of the liquid and solid particles from the gaseous medium exiting from the outlet portion; said impeller means including at least two impeller stages axially spaced upstream and downstream of the venturi passage means, respectively; said venturi passage means including a convergent section having an inlet end extending radially beyond one of the impeller stages, a divergent section having an outlet end radially smaller than the other of the impeller stages and a throat section axially spaced closer to said other of the impeller stages than said one of the impeller stages; and said injecting means being located upstream of said one of the impeller stages.
Claim 3
Dependent Claim
42 words
The combination of claim 1 wherein said impeller means further includes a drive motor having a power shaft extending through the venturi passage means and connected to said impeller stages adjacent to the inlet and outlet ends of the venturi passage means.
Claim 4
Dependent Claim
103 words
The combination of claim 2 wherein the housing includes an outer shell having opposite axial ends, an end wall connected to one axial end of the shell and supporting the inlet portion, end cap means connected to the other of the axial ends of the shell for supporting the baffle means and the outlet portion, and tubular passage means extending from the end wall toward the outlet portion and internally mounting the venturi passage means in radially spaced relation to the outer shell for conducting said vortical and axial flow of the gaseous medium between the inlet and outlet portions of the housing.
Claim 5
Dependent Claim
29 words
The combination of claim 3 wherein said baffle means includes radially spaced tubular sections extending upstream from the outlet portion in axially overlapping relation to the tubular passage means.
Claim 6
Dependent Claim
34 words
The combination of claim 4 wherein said collection means comprises a chamber located below the tubular passage means in fluid communication with the annular space between the tubular passage means and the outer shell.
Claim 7
Dependent Claim
103 words
The combination of claim 1 wherein the housing includes an outer shell having opposite axial ends, an end wall connected to one axial end of the shell and supporting the inlet portion, end cap means connected to the other of the axial ends of the shell for supporting the baffle means and the outlet portion, and tubular passage means extending from the end wall toward the outlet portion and internally mounting the venturi passage means in radially spaced relation to the outer shell for conducting said vortical and axial flow of the gaseous medium between the inlet and outlet portions of the housing.
Claim 8
Dependent Claim
29 words
The combination of claim 6 wherein said baffle means includes radially spaced tubular sections extending upstream from the outlet portion in axially overlapping relation to the tubular passage means.
Claim 9
Dependent Claim
34 words
The combination of claim 6 wherein said collection means comprises a chamber located below the tubular passage means in fluid communication with the annular space between the tubular passage means and the outer shell.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |