US3862574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting the temperature of a radiation furnace
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1973-02-28
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Granted: 1975-01-28
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Expires: 1993-02-28
Abstract
Abstract A temperature measuring device for insertion in a furnace wall has a sheath adapted to be inserted in the furnace wall and a refractory thermal conductor within the end of the sheath at the end thereof toward the inside of the furnace. A thermocouple device is provided in an aperture in the refractory thermal conductor. The device may be provided with cooling conduits to cool the end of the thermal conductor within the sheath, and rods extending through the sheath and thermal conductor and movable longitudinally therein to enable removal of incrustations formed on said refractory thermal conductor.
Inventors
- 👤 Jacques Antoine
- 👤 Jean-Jacques Mathieu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:33
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14; G01K1/146; G01K7/00; G01K7/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
143 words
In a device for measuring the temperature of a furnace, wherein said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath and having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material mounted in a fixed position in said sheath, and further comprising elongated means extending through said sheath and said conductive element and longitudinally movable therein with respect to the sheath and thermally conductive element between a position fully within the sheath and a position extending outwardly beyond said surface of said thermally conductive element for dislodging the incrustations formed on said surface.
Claim 2
Dependent Claim
143 words
In a device for measuring the temperature of a furnace, wherein said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath and having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material mounted in a fixed position in said sheath, and further comprising elongated means extending through said sheath and said conductive element and longitudinally movable therein with respect to the sheath and thermally conductive element between a position fully within the sheath and a position extending outwardly beyond said surface of said thermally conductive element for dislodging the incrustations formed on said surface.
Claim 3
Dependent Claim
197 words
In a device for measuring the temperature of a furnace, wherein said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath, having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material mounted in a fixed position in said sheath, and further comprising a sleeve extending axially within said sheath from the other end thereof to said thermally conductive element, said means for determining temperature having leads extending through said sheath, whereby a longitudinally extending space is formed between said sheath and sleeve, said thermally conductive element having longitudinally extending internal passages aligned with said space, and elongated means extending through said space and passages and longitudinally movable therein with respect to said sheath and said thermally conductive element between a position fully within said sheath and a position extending through said passages outwardly beyond said surface of said thermally conductive element for dislodging incrustations formed on said surface.
Claim 4
Dependent Claim
197 words
In a device for measuring the temperature of a furnace, wherein said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath, having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material mounted in a fixed position in said sheath, and further comprising a sleeve extending axially within said sheath from the other end thereof to said thermally conductive element, said means for determining temperature having leads extending through said sheath, whereby a longitudinally extending space is formed between said sheath and sleeve, said thermally conductive element having longitudinally extending internal passages aligned with said space, and elongated means extending through said space and passages and longitudinally movable therein with respect to said sheath and said thermally conductive element between a position fully within said sheath and a position extending through said passages outwardly beyond said surface of said thermally conductive element for dislodging incrustations formed on said surface.
Claim 5
Dependent Claim
13 words
The device of claim 2 wherein said elongated means are comprised of rods.
Claim 6
Dependent Claim
37 words
The device Of claim 3 further comprising common mechanical means connected to the ends of said rods remote from said thermally conductive element, whereby said rods are moveable in common through said passages and beyond said surface.
Claim 7
Dependent Claim
14 words
The device of claim 2 wherein said means for determining temperature comprises a thermocouple.
Claim 8
Dependent Claim
234 words
In a device for measuring the temperature of a furnace, where said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath, having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material, further comprising a sleeve extending axially within said sheath from the other end thereof to said thermally conductive element, said means for determining temperature having leads extending through said sheath, whereby a longitudinally extending space is formed between said sheath and sleeve, said thermally conductive element having longitudinally extending passages aligned with said space, a plurality of tubes extending longitudinally through said space and aligned with said passages, a plurality of rods extending through said tubes and positioned to move longitudinally in said tubes with respect to said sheath and said thermally conductive element between a position fully within said sheath and a position extending through said passages outwardly beyond said surface of said thermally conductive element for dislodging incrustations formed on said surface, and mechanical means connected to the ends of said rods remote from said thermally conductive element, whereby said rods are movable in common through said passages and beyond said surface.
Claim 9
Dependent Claim
234 words
In a device for measuring the temperature of a furnace, where said device is of the type having an outer sheath, a thermally conductive element fixedly mounted in one end of the sheath, having a surface facing out of the sheath for exposure to radiation within the furnace, means for determining temperature positioned within said thermally conductive element, and means in said sheath for cooling said thermally conductive element; the improvement wherein said thermally conductive element is a refractory material, further comprising a sleeve extending axially within said sheath from the other end thereof to said thermally conductive element, said means for determining temperature having leads extending through said sheath, whereby a longitudinally extending space is formed between said sheath and sleeve, said thermally conductive element having longitudinally extending passages aligned with said space, a plurality of tubes extending longitudinally through said space and aligned with said passages, a plurality of rods extending through said tubes and positioned to move longitudinally in said tubes with respect to said sheath and said thermally conductive element between a position fully within said sheath and a position extending through said passages outwardly beyond said surface of said thermally conductive element for dislodging incrustations formed on said surface, and mechanical means connected to the ends of said rods remote from said thermally conductive element, whereby said rods are movable in common through said passages and beyond said surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |