US3345873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln temperature measurement
Assignee: Individual
•
Filing: 1965-03-23
•
Granted: 1967-10-10
•
Expires: 1985-03-23
Abstract
No abstract record available.
Inventors
- 👤 Otto G Lellep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/05; F; F27; F27B; F27B7/00; F27B7/20; F27B7/42; G01J5/0044; G01J5/04; G01J5/041; G01J5/048; G01J5/051; G01J5/08; G01J5/0818; G01J5/0893; G01K; G01K1/00; G01K1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE COMBINATION COMPRISING A ROTARY KILN THROUGH WHICH A GRAVITATING MATERIAL PASSES WHILE BEING HEATED TO ELEVATE TEMPERATURE, MEANS FORMING A PASSAGE THROUGH THE WALL OF THE KILN, THE PASSAGE LOCATED TO PERIODICALLY SWEEP DIRECTLY UNDER SAID MATERIAL TO BE EXPOSED TO PENETRATION BY THE MATERIAL, A PYROMETER MOUNTED TO THE OUTSIDE OF THE KILN FOR ROTATION THEREWITH AND ALIGNED WITH SAID PASSAGE TO RECEIVE RADIATION FROM THE KILN INTERIOR THROUGH THE PASSAGE, AND MEANS OPERATING TO PROJECT AN AIR STREAM THROUGH SAID PASSAGE INTO THE KILN AND WITH SUFFICIENT AIR VELOCITY IN SAID PASSAGE TO DISPLACE TOWARD THE KILN INTERIOR THE MATERIAL TENDING TO ENTER SAID PASSAGE AS THE PASSAGE SWEEPS UNDER THE MATERIAL WHEREBY THE PASSAGE IS MAINTAINED SUBSTANTIALLY FREE OF SAID MATERIAL THROUGHOUT PASSAGE ROTATION.
Claim 2
Dependent Claim
128 words
THE COMBINATION COMPRISING A ROTARY KILN THROUGH WHICH A GRAVITATING MATERIAL PASSES WHILE BEING HEATED TO ELEVATE TEMPERATURE, MEANS FORMING A PASSAGE THROUGH THE WALL OF THE KILN, THE PASSAGE LOCATED TO PERIODICALLY SWEEP DIRECTLY UNDER SAID MATERIAL TO BE EXPOSED TO PENETRATION BY THE MATERIAL, A PYROMETER MOUNTED TO THE OUTSIDE OF THE KILN FOR ROTATION THEREWITH AND ALIGNED WITH SAID PASSAGE TO RECEIVE RADIATION FROM THE KILN INTERIOR THROUGH THE PASSAGE, AND MEANS OPERATING TO PROJECT AN AIR STREAM THROUGH SAID PASSAGE INTO THE KILN AND WITH SUFFICIENT AIR VELOCITY IN SAID PASSAGE TO DISPLACE TOWARD THE KILN INTERIOR THE MATERIAL TENDING TO ENTER SAID PASSAGE AS THE PASSAGE SWEEPS UNDER THE MATERIAL WHEREBY THE PASSAGE IS MAINTAINED SUBSTANTIALLY FREE OF SAID MATERIAL THROUGHOUT PASSAGE ROTATION.
References Cited (Backward Citations)
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Cited
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Cited
US1995723A
Cited
US2275265A
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US2448199A
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US3273874A
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |