Patent US3242649A successfully refreshed from Google Patents.
US3242649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical gas cleaner
Assignee: American Air Filter Co Inc
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Filing: 1963-09-17
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Granted: 1966-03-29
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Expires: 1983-09-17
Abstract
No abstract record available.
Inventors
- 👤 Richard D Rivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:48
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/14; B03C3/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A GAS FILTER COMPRISING: (A) A HOUSING DEFINING A GAS FLOW PASSAGE THERETHROUGH FOR A GAS STREAM TO BE TREATED; (B) A SHEET OF DIELECTRIC FILTER MEDIUM DISPOSED WITHIN SAID HOUSING IN PLEAT FORMATION ACROSS SAID GAS FLOW PASSAGE TO EXTEND TRANSVERSE THE DIRECTION OF THE FLOW OF THE GAS STREAM TO BE TREATED; (C) ELECTRICALLY CONDUCTIVE, CORRUGATED SPACING MEMBERS POSITIONED TO SEPARATE THE PLEATS OF SAID MATERIAL WITH THE CORRUGATIONS OF EACH SPACING MEMBER FORMING GAS STREAM CHANNELS EXTENDING ALONG THE LINE OF GAS FLOW CONTIGUOUS TO THE PLEATS OF THE FILTER MEDIUM THROUGH WHICH THE GAS STREAM TO BE TREATED PASSES; AND, (D) MEANS ON SAID HOUSING IN INSULATED RELATIONSHIP TO DIRECTLY CONTACT AND CHARGE AND GROUND SAID CORRUGATED SPACING MEMBERS IN SUCCESSIVELY ALTERNATING FASHION WHEREBY SAID SPACING MEMBERS BOTH SPACE AND PROVIDE AN INTENSIFIED POTENTIAL GRADIENT TRANSVERSE THE BREADTH OF SAID FILTER MEDIUM THEREBETWEEN.
Claim 2
Dependent Claim
147 words
A GAS FILTER COMPRISING: (A) A HOUSING DEFINING A GAS FLOW PASSAGE THERETHROUGH FOR A GAS STREAM TO BE TREATED; (B) A SHEET OF DIELECTRIC FILTER MEDIUM DISPOSED WITHIN SAID HOUSING IN PLEAT FORMATION ACROSS SAID GAS FLOW PASSAGE TO EXTEND TRANSVERSE THE DIRECTION OF THE FLOW OF THE GAS STREAM TO BE TREATED; (C) ELECTRICALLY CONDUCTIVE, CORRUGATED SPACING MEMBERS POSITIONED TO SEPARATE THE PLEATS OF SAID MATERIAL WITH THE CORRUGATIONS OF EACH SPACING MEMBER FORMING GAS STREAM CHANNELS EXTENDING ALONG THE LINE OF GAS FLOW CONTIGUOUS TO THE PLEATS OF THE FILTER MEDIUM THROUGH WHICH THE GAS STREAM TO BE TREATED PASSES; AND, (D) MEANS ON SAID HOUSING IN INSULATED RELATIONSHIP TO DIRECTLY CONTACT AND CHARGE AND GROUND SAID CORRUGATED SPACING MEMBERS IN SUCCESSIVELY ALTERNATING FASHION WHEREBY SAID SPACING MEMBERS BOTH SPACE AND PROVIDE AN INTENSIFIED POTENTIAL GRADIENT TRANSVERSE THE BREADTH OF SAID FILTER MEDIUM THEREBETWEEN.
References Cited (Backward Citations)
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US2522568A
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US2579440A
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US2868319A
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US2908348A
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US2952333A
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |