US3877905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtration system
Assignee: Advanced Product Engineering Corp
•
Filing: 1973-01-05
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Granted: 1975-04-15
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Expires: 1993-01-05
Abstract
Abstract A filtration device including a self-propelling rotating filter cage and means to aid in the rotation of the filter cage, said means comprising motor drive means or pressure producing means.
Inventors
- 👤 Richard A Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:20
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/26; Y; Y10; Y10S; Y10S494/00; Y10S494/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
A filtration system for removing particulate matter from a fluid medium, said system comprising a housing, a filter means positioned in the housing for rotation therewith, said housing having fluid inlet and fluid discharge means, a conical shell means positioned between said housing and said filter means defining a space for the reception of the fluid medium received at said inlet and containing particulate matter, said conical shell means supported by said filter means for rotation therewith, stationary annular nozzle means for imparting a tangential velocity component to the fluid medium containing the particulate matter entering the inlet means, vanes supported by the conical shell and the filter means and rotatable therewith and against which the fluid impinges, and a blower upstream of the housing inlet and coupled thereto which supplies the fluid medium and the particulate matter to the inlet matched in head and flow capacity so that the fluid impinging upon said vanes will impart rotary motion to said filter means, thereby causing said filter means to rotate at a speed which is sufficient for self-cleaning action.
Claim 2
Dependent Claim
179 words
A filtration system for removing particulate matter from a fluid medium, said system comprising a housing, a filter means positioned in the housing for rotation therewith, said housing having fluid inlet and fluid discharge means, a conical shell means positioned between said housing and said filter means defining a space for the reception of the fluid medium received at said inlet and containing particulate matter, said conical shell means supported by said filter means for rotation therewith, stationary annular nozzle means for imparting a tangential velocity component to the fluid medium containing the particulate matter entering the inlet means, vanes supported by the conical shell and the filter means and rotatable therewith and against which the fluid impinges, and a blower upstream of the housing inlet and coupled thereto which supplies the fluid medium and the particulate matter to the inlet matched in head and flow capacity so that the fluid impinging upon said vanes will impart rotary motion to said filter means, thereby causing said filter means to rotate at a speed which is sufficient for self-cleaning action.
Claim 3
Dependent Claim
30 words
A system according to claim 1 in which the filter cage is driven with a motor, so that the filter means speed can be fixed independent of fluid flow conditions.
Claim 4
Dependent Claim
22 words
A system according to claim 2 in which the filtration apparatus is combined with a suction means downstream of the filter means.
Claim 5
Dependent Claim
22 words
A system according to claim 1 in which the filtration apparatus is combined with a suction blower downstream of the filter cage.
Claim 6
Dependent Claim
193 words
A filtration system for removing particulate matter from a fluid medium, said system comprising a housing, a filter means positioned in the housing for rotation therewith, saiD housing having fluid inlet and fluid discharge means, a conical shell means positioned between said housing and said filter means defining a space for the reception of the fluid medium received at said inlet and containing particulate matter, said conical shell means supported by said filter means for rotation therewith, stationary annular nozzle means for imparting a tangential velocity component to the fluid medium containing the particulate matter entering the inlet means, vanes supported by the conical shell and the filter means and rotatable therewith and against which the fluid impinges, suction blower means downstream of the housing discharge means and coupled thereto which supplies the fluid medium and the particulate matter to the inlet matched in head and flow capacity so that the fluid impinging upon said vanes will impart rotary motion to said filter means, thereby causing said filter means to rotate at a speed which is sufficient for self-cleaning action, said discharge means comprising a collector cover positioned downstream of the filter means.
Claim 7
Dependent Claim
193 words
A filtration system for removing particulate matter from a fluid medium, said system comprising a housing, a filter means positioned in the housing for rotation therewith, saiD housing having fluid inlet and fluid discharge means, a conical shell means positioned between said housing and said filter means defining a space for the reception of the fluid medium received at said inlet and containing particulate matter, said conical shell means supported by said filter means for rotation therewith, stationary annular nozzle means for imparting a tangential velocity component to the fluid medium containing the particulate matter entering the inlet means, vanes supported by the conical shell and the filter means and rotatable therewith and against which the fluid impinges, suction blower means downstream of the housing discharge means and coupled thereto which supplies the fluid medium and the particulate matter to the inlet matched in head and flow capacity so that the fluid impinging upon said vanes will impart rotary motion to said filter means, thereby causing said filter means to rotate at a speed which is sufficient for self-cleaning action, said discharge means comprising a collector cover positioned downstream of the filter means.
Claim 8
Dependent Claim
17 words
In a system according to claim 5 which includes a motor coupled to drive the filter cage.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |