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US3138436A
Expired / Lapsed
US
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Apparatus for monitoring chemical reactions
Assignee: Union Carbide Corp
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Filing: 1960-06-03
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Granted: 1964-06-23
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Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A THERMAL MEASURING CELL FOR USE IN DETERMINING TEMPERATURE DIFERENTIALS IN A MULTI-COMPONENT FLOWING FLUID STREAM, THE COMPONENTS OF WHICH REACT WITH AN ACCOMPANYING TEMPERATURE CHANGE, WHICH CELL COMPRISES A BODY MEMBER HAVING THEREIN A FIRST CHAMBER CONTAINING A FIRST SENSING ELEMENT WHOSE ELECTRICAL RESISTANCE IS PROPORTIONAL TO TEMPERATURE, A SECOND CHAMBER OF GREATER CROSSSECTIONAL AREA THAN AND CONNECTED TO THE FIRST CHAMBER WHEREIN WHICH SAID SECOND CHAMBER VELOCITY OF THE STREAM FLOWING THERETHROUGH IS REDUCED TO A PREDETERMINED EXTENT SUFFICIENT TO EFFECT A REACTION-INDUCED TEMPERATURE CHANGE THEREIN, A THIRD CHAMBER CONNECTED TO THE SECOND CHAMBER AND CONTAINING A SECOND SENSING ELEMENT WHOSE ELECTRICAL RESISTANCE IS PROPORTIONAL TO TEMPERATURE, ELECTRICAL LEADS CONNECTED TO BOTH SAID SENSING ELEMENTS, AND FLUID SAMPLE INLET AND OUTLET MEANS CONNECTED TO THE FIRST AND THIRD CHAMBERS RESPECTIVELY.
Claim 2
Dependent Claim
132 words
A THERMAL MEASURING CELL FOR USE IN DETERMINING TEMPERATURE DIFERENTIALS IN A MULTI-COMPONENT FLOWING FLUID STREAM, THE COMPONENTS OF WHICH REACT WITH AN ACCOMPANYING TEMPERATURE CHANGE, WHICH CELL COMPRISES A BODY MEMBER HAVING THEREIN A FIRST CHAMBER CONTAINING A FIRST SENSING ELEMENT WHOSE ELECTRICAL RESISTANCE IS PROPORTIONAL TO TEMPERATURE, A SECOND CHAMBER OF GREATER CROSSSECTIONAL AREA THAN AND CONNECTED TO THE FIRST CHAMBER WHEREIN WHICH SAID SECOND CHAMBER VELOCITY OF THE STREAM FLOWING THERETHROUGH IS REDUCED TO A PREDETERMINED EXTENT SUFFICIENT TO EFFECT A REACTION-INDUCED TEMPERATURE CHANGE THEREIN, A THIRD CHAMBER CONNECTED TO THE SECOND CHAMBER AND CONTAINING A SECOND SENSING ELEMENT WHOSE ELECTRICAL RESISTANCE IS PROPORTIONAL TO TEMPERATURE, ELECTRICAL LEADS CONNECTED TO BOTH SAID SENSING ELEMENTS, AND FLUID SAMPLE INLET AND OUTLET MEANS CONNECTED TO THE FIRST AND THIRD CHAMBERS RESPECTIVELY.
References Cited (Backward Citations)
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |