US3173774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipittator
Assignee: American Air Filter Co Inc
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Filing: 1960-11-25
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Granted: 1965-03-16
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Allan R Getzin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
264 words
A VARIABLE SIZE, KNOCK-DOWN ELECTRICAL DUST PRECIPITATING APPARATUS COMPRISING A PLURALITY OF INDEPENDENT AND SEPARABLE UNIT PLATE ELECTRODE ASSEMBLIES EACH HAVING ELECTRICAL CONTACT MEANS ON THE SIDE THEREOF; A PLURALITY OF INDEPENDENT AND SEPARABLE UNIT FRAME MEMBERS SERVING TO PROVIDE A MODULAR FRAME MEMBER FOR EACH UNIT PLATE ELECTRODE ASSEMBLY, EACH OF SAID FRAME MEMBERS COMPRISING AN OPEN-SIDED, OPEN-ENEDE, BLOCK-LIKE ARRANGEMENT INCLUDING AN INTEGRAL FOUR-SIDED RECTANGULAR BORDER FRAME SECTION DEFINING AN OPEN PASSAGE THROUGH WHICH A GAS STREAM TO BE TEATED CAN BE PASSED AND A SET OF FOUR SPACED TRACK MEMBERS, EACH TRACK MEMBER BEING OF RIGHT ANGULAR CROSS SECTION, FIXED TO AND CO-EXTENDING IN OPPOSED CANTILEVER FASHION FROM THE CORNERS OF SAID BORDER FRAME TO PROVIDE CORNER CHANNELS FOR SAID OPEN-SIDED, OPEN-ENDED, BLOCKLIKE ARRANGEMENT, SAID BLOCK-LIKE FRAME ARRANGEMENTS BEING ARRANGED IN SIDE-BY-SIDE RELATIONSHIP FORMING AN ASSEMBLY OF BLOCK-LIKE UNIT FRAMES WITH SIDES OF THE BORDER FRAME SECTIONS OF ADJACENT FRAMES ABUTTING EACH OTHER AND SAID CANTILIVER TRACKS OF SUCH ADJACENT FRAME MEMBERS COEXTENDING IN FACED AND ABUTTING RELATIONSHIP TO SLIDABLY RECEIVE ALONG SAID CORNER CHANNELS THEREOF THEIR RESPECTIVE PLATE ELECTRODE ASSEMBLIES IN SUCH A MANNER THAT THE ELECTRICAL CONTACT MEANS OF ONE PLATE ELECTRODE ASSEMBLY MATES THROUGH THE OPEN-SIDED FRAME MEMBER WITH THE ELECTRICAL CONTACT MEANS OF AN ADJACENT PLATE ELECTRODE ASSEMBLY; AN OUTER HOUSING SURROUNDING AND DEFINING THE OUTER PERIMETER OF SAID ASSEMBLY OF SIDE-BY-SIDE, BLOCK-LIKE UNIT FRAMES INCLUDING INDEPENDENT AND SEPARABLE GAS IMPERVIOUS BASE, ROOF AND SIDE PANEL MEMBERS HAVING EXTENDING FROM THE INNER FACE THEREOF BUS BAR MEANS TO ENGAGE THE CONTACT MEANS OF AN ADJACENT PLATE ELECTRODE ASSEMBLY.
Claim 2
Dependent Claim
264 words
A VARIABLE SIZE, KNOCK-DOWN ELECTRICAL DUST PRECIPITATING APPARATUS COMPRISING A PLURALITY OF INDEPENDENT AND SEPARABLE UNIT PLATE ELECTRODE ASSEMBLIES EACH HAVING ELECTRICAL CONTACT MEANS ON THE SIDE THEREOF; A PLURALITY OF INDEPENDENT AND SEPARABLE UNIT FRAME MEMBERS SERVING TO PROVIDE A MODULAR FRAME MEMBER FOR EACH UNIT PLATE ELECTRODE ASSEMBLY, EACH OF SAID FRAME MEMBERS COMPRISING AN OPEN-SIDED, OPEN-ENEDE, BLOCK-LIKE ARRANGEMENT INCLUDING AN INTEGRAL FOUR-SIDED RECTANGULAR BORDER FRAME SECTION DEFINING AN OPEN PASSAGE THROUGH WHICH A GAS STREAM TO BE TEATED CAN BE PASSED AND A SET OF FOUR SPACED TRACK MEMBERS, EACH TRACK MEMBER BEING OF RIGHT ANGULAR CROSS SECTION, FIXED TO AND CO-EXTENDING IN OPPOSED CANTILEVER FASHION FROM THE CORNERS OF SAID BORDER FRAME TO PROVIDE CORNER CHANNELS FOR SAID OPEN-SIDED, OPEN-ENDED, BLOCKLIKE ARRANGEMENT, SAID BLOCK-LIKE FRAME ARRANGEMENTS BEING ARRANGED IN SIDE-BY-SIDE RELATIONSHIP FORMING AN ASSEMBLY OF BLOCK-LIKE UNIT FRAMES WITH SIDES OF THE BORDER FRAME SECTIONS OF ADJACENT FRAMES ABUTTING EACH OTHER AND SAID CANTILIVER TRACKS OF SUCH ADJACENT FRAME MEMBERS COEXTENDING IN FACED AND ABUTTING RELATIONSHIP TO SLIDABLY RECEIVE ALONG SAID CORNER CHANNELS THEREOF THEIR RESPECTIVE PLATE ELECTRODE ASSEMBLIES IN SUCH A MANNER THAT THE ELECTRICAL CONTACT MEANS OF ONE PLATE ELECTRODE ASSEMBLY MATES THROUGH THE OPEN-SIDED FRAME MEMBER WITH THE ELECTRICAL CONTACT MEANS OF AN ADJACENT PLATE ELECTRODE ASSEMBLY; AN OUTER HOUSING SURROUNDING AND DEFINING THE OUTER PERIMETER OF SAID ASSEMBLY OF SIDE-BY-SIDE, BLOCK-LIKE UNIT FRAMES INCLUDING INDEPENDENT AND SEPARABLE GAS IMPERVIOUS BASE, ROOF AND SIDE PANEL MEMBERS HAVING EXTENDING FROM THE INNER FACE THEREOF BUS BAR MEANS TO ENGAGE THE CONTACT MEANS OF AN ADJACENT PLATE ELECTRODE ASSEMBLY.
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |