US3655058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtration apparatus
Assignee: Individual
•
Filing: 1970-07-13
•
Granted: 1972-04-11
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Expires: 1990-07-13
Abstract
Abstract A filtration apparatus which includes a rotating filter, a compressor or blower for providing a positive fluid flow to the rotating filter, and an expander or turbine for extracting energy from the fluid after it has been filtered.
Inventors
- 👤 Richard A Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:40
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/12; B01; B01D; B01D46/00; B01D46/24; B01D46/26
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
253 words
An apparatus for removing particulate matter from a fluid comprising a stationary housing, a rotatable cylindrical filter mounted on bearings within said housing, means for driving the filter, inlet means for providing fluid into the housing, compressor means positioned within the housing and between the inlet means and the rotatable filter and adapted to rotate with said filter to produce a positive flow of fluid into said housing between the inner wall of said housing and said filter, stationary outlet passage means extending from interior of the housing to the outside of said housing for permitting the fluid to leave said housing and turbine means positioned within the housing and between the filter and the stationary outlet passage means extending into the housing and adapted to roTate with said filter to extract excess energy of the filtered fluid after it has passed through the filter as well as to control the flow rate of the fluid medium and the pressure drop in the apparatus, said turbine discharging fluid into the stationary outlet passage means at a point interior of the housing, said compressor means and said turbine means comprising a plurality of vanes positioned about a shaft for rotating the vanes and the filter, the outlet passage means being located above the inlet means and the turbine vanes being located above the compressor vanes, the turbine vanes spaced inwardly a substantial distance from the outer periphery of the compressor vanes, and in which the turbine vanes are positioned below the outlet passage means.
Claim 2
Independent Claim
253 words
An apparatus for removing particulate matter from a fluid comprising a stationary housing, a rotatable cylindrical filter mounted on bearings within said housing, means for driving the filter, inlet means for providing fluid into the housing, compressor means positioned within the housing and between the inlet means and the rotatable filter and adapted to rotate with said filter to produce a positive flow of fluid into said housing between the inner wall of said housing and said filter, stationary outlet passage means extending from interior of the housing to the outside of said housing for permitting the fluid to leave said housing and turbine means positioned within the housing and between the filter and the stationary outlet passage means extending into the housing and adapted to roTate with said filter to extract excess energy of the filtered fluid after it has passed through the filter as well as to control the flow rate of the fluid medium and the pressure drop in the apparatus, said turbine discharging fluid into the stationary outlet passage means at a point interior of the housing, said compressor means and said turbine means comprising a plurality of vanes positioned about a shaft for rotating the vanes and the filter, the outlet passage means being located above the inlet means and the turbine vanes being located above the compressor vanes, the turbine vanes spaced inwardly a substantial distance from the outer periphery of the compressor vanes, and in which the turbine vanes are positioned below the outlet passage means.
Claim 3
Dependent Claim
48 words
An apparatus according to claim 1 in which means are provided as part of the compressor for introducing a controlled preswirl or counter-swirl into the fluid medium and particulate matter before it enters into the region of space between the inner wall of the housing and the filter.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 1 in which a cone is positioned within the housing and is adapted to rotate with the filter, the outer cone wall providing means for deflecting fluid passing through said filter into said turbine means.
Claim 5
Dependent Claim
59 words
An apparatus according to claim 3 including a second cone adapted to rotate with said filter, said second cone positioned between the inner wall of the housing and the side of the filter positioned to first receive the fluid medium containing the particulate matter, said second cone having an inner wall positioned to deflect fluid medium into the filter.
Claim 6
Dependent Claim
52 words
An apparatus according to claim 1 in which means are provided for permitting the particulate matter to be discharged from the rotatable cylindrical filter into the stationary housing and means connected to the stationary housing to permit the particulate matter to exit from the housing so that the apparatus is self cleaning.
Claim 7
Independent Claim
175 words
An apparatus for removing particulate matter from a fluid medium comprising in combination, a stationary housing, inlet means for the fluid, a shaft supported by the housing, a rotatable cylindrically shaped filter supported by the shaft and having a screen which is adapted to rotate within the housing, means for rotating the filter, compressor means positioned within the housing and between the inlet means and the filter for producing a positive first fluid medium flow and fluid medium swirl between the screen and the housing, stationary outlet passage means for fluid, expander means positioned within the housing and between the filter and the stationary outlet passage means for extracting energy remaining in the fluid medium after the fluid has passed through the screen, the compressor means and expander means both including a plurality of vanes arranged about the shaft, the outlet passage being located above the inlet passage and the expander vanes being located above the compressor vanes, and the expander vanes spaced inwardly a substantial distance from the outer periphery of the compressor vanes.
Claim 8
Independent Claim
175 words
An apparatus for removing particulate matter from a fluid medium comprising in combination, a stationary housing, inlet means for the fluid, a shaft supported by the housing, a rotatable cylindrically shaped filter supported by the shaft and having a screen which is adapted to rotate within the housing, means for rotating the filter, compressor means positioned within the housing and between the inlet means and the filter for producing a positive first fluid medium flow and fluid medium swirl between the screen and the housing, stationary outlet passage means for fluid, expander means positioned within the housing and between the filter and the stationary outlet passage means for extracting energy remaining in the fluid medium after the fluid has passed through the screen, the compressor means and expander means both including a plurality of vanes arranged about the shaft, the outlet passage being located above the inlet passage and the expander vanes being located above the compressor vanes, and the expander vanes spaced inwardly a substantial distance from the outer periphery of the compressor vanes.
Claim 9
Dependent Claim
37 words
An apparatus according to claim 6 in which means are provided for forcing a second fluid flow into said housing to impinge upon the first fluid medium prior to the first fluid medium passing through said filter.
Claim 10
Dependent Claim
34 words
An apparatus according to claim 6 in which there is provided a second cylindrically shaped filter adapted to rotate with said first filter, one of said filters positioned within the other of said filters.
Claim 11
Dependent Claim
19 words
An apparatus according to claim 6 including common means for rotating the filter, compressor and expander means in unison.
Claim 12
Dependent Claim
47 words
An apparatus according to claim 6 in which the fluid enters the passage after leaving the expander at a point closer to the shaft than the point at which it is discharged from the passage thereby forming a radial diffuser to the velocity energy of the fluid.
References Cited (Backward Citations)
FR1221616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |