US5078507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature sensor
Assignee: General Electric Co
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Filing: 1991-03-18
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Granted: 1992-01-07
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Expires: 2011-03-18
Abstract
Abstract A temperature sensor comprising a hollow shield including a cone shaped tip portion and a substantially cylindrical portion. The cylindrical portion surrounds a high temperature collection rod (e.g., a lightpipe or optical fiber). The collection rod is arranged to collect radiant energy from the cone shaped tip portion and transmit the radiation to a fiber optic cable attached to the opposite end of the collecting rod.
Inventors
- 👤 Allen C. Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:22
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/0014; G01J5/02; G01J5/04; G01J5/08; G01J5/0818; G01J5/0887; G01J5/046
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
71 words
A hollow core temperature sensor comprising: a heat resistant shield having a hollow, cone shaped tip portion (10); a substantially cylindrical portion (50) surrounding a radiant energy collecting rod (30); a fiber optic cable (40) connected to an end of said cylindrical portion opposite said cone shaped portion, wherein said collecting rod is arranged to collect energy radiating from said cone shaped tip and transmit said energy to said optical fiber.
Claim 2
Dependent Claim
71 words
A hollow core temperature sensor comprising: a heat resistant shield having a hollow, cone shaped tip portion (10); a substantially cylindrical portion (50) surrounding a radiant energy collecting rod (30); a fiber optic cable (40) connected to an end of said cylindrical portion opposite said cone shaped portion, wherein said collecting rod is arranged to collect energy radiating from said cone shaped tip and transmit said energy to said optical fiber.
Claim 3
Dependent Claim
29 words
A temperature sensor according to claim 1 wherein: said cylindrical portion (50) includes a plurality of support regions adapted to radially support said collecting rod within said temperature sensor.
Claim 4
Dependent Claim
15 words
A temperature sensor according to claim 2 wherein: said collecting rod is a sapphire rod.
Claim 5
Dependent Claim
36 words
A temperature sensor according to claim 2 wherein: said collecting rod is free to move axially relative to said cylindrical portion; and said collecting rod is fixed at said end closest to said fiber optic cable.
Claim 6
Dependent Claim
64 words
A temperature sensor comprising: a hollow heat resistant shield comprising: a cone shaped tip portion; a cylindrical portion attached to said tip portion; a radiant energy collecting rod disposed within said cylindrical portion wherein said collecting rod is arranged to receive radiation emitted by said tip portion said temperature sensor further includes an optical cable arranged to received said radiation from said collecting rod.
Claim 7
Dependent Claim
64 words
A temperature sensor comprising: a hollow heat resistant shield comprising: a cone shaped tip portion; a cylindrical portion attached to said tip portion; a radiant energy collecting rod disposed within said cylindrical portion wherein said collecting rod is arranged to receive radiation emitted by said tip portion said temperature sensor further includes an optical cable arranged to received said radiation from said collecting rod.
Claim 8
Dependent Claim
25 words
A temperature sensor according to claim 5 wherein: said collecting rod is attached to said cylindrical portion at a single point near said optical cable.
Claim 9
Dependent Claim
29 words
A temperature sensor according to claim 6 wherein: said collecting rod is supported within said cylindrical portion hollow tube by a plurality of raised portions of said cylindrical portion.
Claim 10
Dependent Claim
15 words
A temperature sensor according to claim 6 wherein said collecting rod comprises: a zirconia rod.
Claim 11
Dependent Claim
12 words
A temperature sensor according to claim 6 wherein said shield comprises: iridium.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |