US4402790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven flue temperature measuring process and probe machine
Assignee: Bethlehem Steel Corp
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Filing: 1982-05-04
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Granted: 1983-09-06
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Expires: 2002-05-04
Abstract
Abstract A temperature measuring probe and method of detecting infrared radiation from flue walls and transmitting the detected infrared radiation through fiber optic cables to photoelectric detection-conversion cells which convert the radiation to electrical signals which are measured and translated into temperatures. Concentric metallic flexible hose mounted on a carriage for mobility provides water cooling for the fiber optic cable with a portable reeling machine for controlling the movement of the cable, hose, and probe head. The probe head provides viewing ports for the terminal ends of the fiber optic cable.
Inventors
- 👤 James B. Lynn
- 👤 George E. Kisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/06; G01J5/061; C; C10; C10B; C10B45/00; G01J5/0044; G01J5/0205; G01J5/025; G01J5/04; G01J5/041; G01J5/08; G01J5/0801; G01J5/0818; G01J5/0821; G01K; G01K1/00; G01K1/08; G01K1/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
171 words
A temperature measuring probe machine for measurement of high temperatures found in an enclosure as in a coke oven flue comprising a sensing probe means to enter the enclosure to measure the temperatures within the enclosure at selected heights in the enclosure, said sensing probe means including a probe terminal head, inner and outer flexible hoses attached to said probe terminal head, and fiber optic cables connected to said probe terminal head through said inner flexible hose, reel means attached to, and around which is wound, said sensing probe means to insert and withdraw said sensing probe means from the enclosure, cooling means to protect said sensing probe means from the high temperatures in the enclosure forming an internal portion of said sensing probe means, carriage means to carry said reel means, instrumentation and control means mounted on said carriage means in operative connection with said sensing probe means and said reel means, and means to supply power to said reel means, said cooling means, and said instrumentation and control means.
Claim 2
Dependent Claim
171 words
A temperature measuring probe machine for measurement of high temperatures found in an enclosure as in a coke oven flue comprising a sensing probe means to enter the enclosure to measure the temperatures within the enclosure at selected heights in the enclosure, said sensing probe means including a probe terminal head, inner and outer flexible hoses attached to said probe terminal head, and fiber optic cables connected to said probe terminal head through said inner flexible hose, reel means attached to, and around which is wound, said sensing probe means to insert and withdraw said sensing probe means from the enclosure, cooling means to protect said sensing probe means from the high temperatures in the enclosure forming an internal portion of said sensing probe means, carriage means to carry said reel means, instrumentation and control means mounted on said carriage means in operative connection with said sensing probe means and said reel means, and means to supply power to said reel means, said cooling means, and said instrumentation and control means.
Claim 3
Dependent Claim
27 words
The temperature measuring probe machine of claim 1, further characterized by said means to supply power and said cooling means being self contained on said carriage means.
Claim 4
Dependent Claim
52 words
The temperature measuring probe machine of claim 1, further characterized by said reel means including means to rotate said reel means including a gearmotor, a drive gear sprocket on said gearmotor and a reel drive sprocket on said reel means, connecting means between said drive gear sprocket and said reel drive sprocket.
Claim 5
Dependent Claim
40 words
The temperature measuring probe machine of claim 1, further characterized by said instrumentation and control means including conversion means connected to said fiber optic cables to change detected infrared radiation to electrical signals, recording means connected to said conversion means.
Claim 6
Dependent Claim
53 words
The temperature measuring probe machine of claim 1, further characterized by said cooling means including cooling liquid passing to said probe terminal through said inner flexible hose and from said probe terminal head through said outer flexible hose, and pump means to move said cooling liquid to and from said probe terminal head.
Claim 7
Dependent Claim
40 words
The temperature measuring probe machine of claim 5, further characterized by scanning tips attached at the ends of said fiber optic cables and mounted to scan through the wall of said probe terminal head in opposite directions from each other.
Claim 8
Dependent Claim
65 words
The temperature measuring probe machine of claim 5, further characterized by said reel means including a shaft along its center axis having hollow portions forming part of said cooling means comprising pathways for said cooling liquid, first conduit means between one of said hollow portions and said inner flexible hose, second conduit means between said outer flexible hose and the other of said hollow portions.
Claim 9
Dependent Claim
35 words
The temperature measuring probe machine of claim 7 further characterized by said first conduit means being a portion of said inner flexible hose extending beyond said outer flexible hose away from said probe terminal head.
Claim 10
Dependent Claim
30 words
The temperature measuring probe machine of claims 1, 5, 6, 7, 8, 3, or 4, further characterized by said means to supply power being carried entirely on said carriage means.
Claim 11
Dependent Claim
42 words
The temperature measuring probe machine of claims 1, 5, 6, 7, 8, 3, or 4, further characterized by said cooling means including a water pump, a radiator connected to said water pump, and fan means adjacent said radiator to cool said radiator.
Claim 12
Independent Claim
93 words
A method of measuring high temperatures in a coke oven flue enclosure comprising the steps of wheeling a temperature measuring unit to a position closely adjacent to the opening of the enclosure, instituting a flow of liquid through inner and outer concentric hoses and a probe head attached thereto, lowering the probe head attached to said inner and outer concentric hoses into an opening at the top of the enclosure by unreeling said hoses from a reel, detecting infrared radiation from the walls through fiber optic cable, and translating detected radiation into temperatures.
Claim 13
Independent Claim
93 words
A method of measuring high temperatures in a coke oven flue enclosure comprising the steps of wheeling a temperature measuring unit to a position closely adjacent to the opening of the enclosure, instituting a flow of liquid through inner and outer concentric hoses and a probe head attached thereto, lowering the probe head attached to said inner and outer concentric hoses into an opening at the top of the enclosure by unreeling said hoses from a reel, detecting infrared radiation from the walls through fiber optic cable, and translating detected radiation into temperatures.
Claim 14
Dependent Claim
46 words
The method of claim 11 further characterized by lowering the probe head and hoses at a constant predetermined speed, timing the constant speed lowering and raising of the probe head, and translating the time and speed into distance travelled by the probe head in the enclosure.
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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) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |