Patent US3178026A successfully refreshed from Google Patents.
US3178026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous floor structure and sealing means therefor
Assignee: Christy Refractories Co LLC
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Filing: 1961-12-22
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Granted: 1965-04-13
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Calvin M Christy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:58
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/001; B01D24/02; B01D24/10; B01D24/12; B01D24/20; B01D24/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A FLOOR FOR A FILTRATION SYSTEM OR THE LIKE COMPRISING A PLURALITY OF INDIVIDUAL POROUS PANESL HAVING UPPER AND LOWER SURFACES AND SIDE WALLS EXTENDING AROUND THE PERIPHERIES THEREOF; INERT FLEXIBLE AND RELATIVELY INCOMPRESSIBLE SEALING MEMBERS MOUNTED ON SAID PANELS AND EXTENDING AROUND THE PERIPHERAL SIDE WALLS OF SAID PANELS, EACH OF SAID SEALING MEMBERS BEING A CONTINUOUS MEMBER HAVING A CENTRAL PORTION OF APPROXIMATELY THE SAME WIDTH AS THE THICKNESS OF THE PANELS, SAID CENTRAL PORTION HAVING OPPOSITE SURFACES AND OPPOSITE SIDE EDGES, AND AN INTEGRAL FLANGE EXTENDING FROM THE CNETRAL PORTION SUBSTANTIALLY PERPENDICULAR THERETO FOR ENGAGING THE UPPER AND LOWER SURFACES OF ITS RESPECTIVE PANEL; AND MEANS FOR SUPPORTING SAID PANESL IN ADJACENT COPLANAR RELATIONSHIP TO FORM A FLOOR, THE SEALING MEMBERS ON SAID PANELS COOPERATIVELY ENGAGING SAID UPPER AND LOWER SURFACES OF SAID PANELS TO FORM A SEAL THEREWITH AND COOPERATIVELY ENGAGING OTHER SEALING MEMBERS ON ADJACENT PANELS.
Claim 2
Dependent Claim
151 words
A FLOOR FOR A FILTRATION SYSTEM OR THE LIKE COMPRISING A PLURALITY OF INDIVIDUAL POROUS PANESL HAVING UPPER AND LOWER SURFACES AND SIDE WALLS EXTENDING AROUND THE PERIPHERIES THEREOF; INERT FLEXIBLE AND RELATIVELY INCOMPRESSIBLE SEALING MEMBERS MOUNTED ON SAID PANELS AND EXTENDING AROUND THE PERIPHERAL SIDE WALLS OF SAID PANELS, EACH OF SAID SEALING MEMBERS BEING A CONTINUOUS MEMBER HAVING A CENTRAL PORTION OF APPROXIMATELY THE SAME WIDTH AS THE THICKNESS OF THE PANELS, SAID CENTRAL PORTION HAVING OPPOSITE SURFACES AND OPPOSITE SIDE EDGES, AND AN INTEGRAL FLANGE EXTENDING FROM THE CNETRAL PORTION SUBSTANTIALLY PERPENDICULAR THERETO FOR ENGAGING THE UPPER AND LOWER SURFACES OF ITS RESPECTIVE PANEL; AND MEANS FOR SUPPORTING SAID PANESL IN ADJACENT COPLANAR RELATIONSHIP TO FORM A FLOOR, THE SEALING MEMBERS ON SAID PANELS COOPERATIVELY ENGAGING SAID UPPER AND LOWER SURFACES OF SAID PANELS TO FORM A SEAL THEREWITH AND COOPERATIVELY ENGAGING OTHER SEALING MEMBERS ON ADJACENT PANELS.
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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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |