US3594127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and systems for monitoring and/or controlling the constituent-potential of heat - treating atmospheres
Assignee: Leeds and Northrup Co
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Filing: 1968-05-24
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Granted: 1971-07-20
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Expires: 1988-05-24
Abstract
Abstract VARIOUS GENERICALLY SIMILAR BUT SPECIFICALLY DIFFERENT METHODS AND SYSTEMS PROVIDING FOR ACCELERATED RESPONSE OF A CONSTITUENT-POTENTIAL DETECTOR TO CHANGES IN CONSTITUENT-TRANSFER ABILITY BY ALTERING THE ATMOSPHERE TO THE DETECTOR TO FORM AN ATMOSPHERE THEREAROUND HAVING FASTER NET CONSTITUENT-TRANSFER ABILITY THAN THE ATMOSPHERE SAMPLE NORMALLY CONDUCTED FROM A SPACE, SUCH AS THE WORK CHAMBER OF A HEAT-TREATING FURNACE WHICH IS BEING MONITORED OR CONTROLLED, PARTICULARLY A FURNACE EMPLOYING A CARBURIZINGTYPE ATMOSPHERE.
Inventors
- 👤 Raymond L Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:43
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; C; C21; C21D; C21D1/00; C21D1/74; C21D1/76; C21D11/00; C23; C23C; C23C8/00; C23C8/06; Y; Y10; Y10T; Y10T436/00; Y10T436/12
Claims Analysis
Total Claims: 0
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |