US3149826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace pipe insulation
Assignee: Inland Steel Co
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Filing: 1961-11-03
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Granted: 1964-09-22
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 John R Brough
- 👤 Thomas E Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:11
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A FURNACE PIPE, A REINFORCED INSULATION CONSTRUCTION INCLUDING A PLURALITY OF COILS OF WIRE EXTENDING CIRCUMFERENTIALLY OF THE PIPE AND TIE WIRES EXTENDING THROUGH THE COILS SO THAT OPPOSITE FREE ENDS OF THE TIE WIRES PROTRUDE FROM THE COILS, THE IMPROVEMENT COMPRISING; ANCHOR MEANS FOR SECURING THE FREE ENDS OF THE TIE WIRES TO THE PIPE SO AS TO ANCHOR CORRESPONDING COILS TO THE PIPE, SAID ANCHOR MEANS INCLUDING METAL STRIP MEANS WELDED TO THE OUTER SURFACE OF THE PIPE AND EXTENDING LONGITUDINALLY THEREOF, SAID METAL STRIP MEANS HAVING PORTIONS THEREOF EXTENDING GENERALLY RADIALLY OF THE PIPE, AND SPACED APERTURES FORMED IN SAID PORTIONS FOR RECEIVING THE FREE ENDS OF THE TIE WIRES.
Claim 2
Dependent Claim
114 words
IN A FURNACE PIPE, A REINFORCED INSULATION CONSTRUCTION INCLUDING A PLURALITY OF COILS OF WIRE EXTENDING CIRCUMFERENTIALLY OF THE PIPE AND TIE WIRES EXTENDING THROUGH THE COILS SO THAT OPPOSITE FREE ENDS OF THE TIE WIRES PROTRUDE FROM THE COILS, THE IMPROVEMENT COMPRISING; ANCHOR MEANS FOR SECURING THE FREE ENDS OF THE TIE WIRES TO THE PIPE SO AS TO ANCHOR CORRESPONDING COILS TO THE PIPE, SAID ANCHOR MEANS INCLUDING METAL STRIP MEANS WELDED TO THE OUTER SURFACE OF THE PIPE AND EXTENDING LONGITUDINALLY THEREOF, SAID METAL STRIP MEANS HAVING PORTIONS THEREOF EXTENDING GENERALLY RADIALLY OF THE PIPE, AND SPACED APERTURES FORMED IN SAID PORTIONS FOR RECEIVING THE FREE ENDS OF THE TIE WIRES.
References Cited (Backward Citations)
US1753220A
Cited
US2693352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |