US2665409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining moisture content or other variables in organic materials
Assignee: Quaker Oats Co
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Filing: 1950-08-30
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Granted: 1954-01-05
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 Charles E Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/223
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
THE METHOD OF MEASURING THE PERCENTAGE OF CONDUCTING MATERIAL CONTAINED IN A FLUENT MATERIAL WHILE IN A CONFINED STREAM OF CONSTANT VOLUME AND UNDER A CONSTANT PRESSURE HEAD COMPRISING THE STEPS OF PASSING SAID STREAM OF MATERIAL BETWEEN THE PLATES OF A CONDENSER, SAID CONDENSER TOGETHER WITH THE MATERIAL LOCATED THEREIN CONSTITUTING A PART OF THE TOTAL CAPACITANCE OF A HIGH FREQUENCY SYSTEM, THE BALANCE OF THE CAPACITANCE IN SAID SYSTEM BEING OF A VALUE TO CREATE A TOTAL CAPACITANCE WITHIN A SELECTED, INTERMEDIATE PORTION OF THE CURRENTCAPACITANCE CURVE, AND MEASURING THE VARIATIONS IN CAPACITANCE CAUSED BY VARIATIONS IN THE PERCENTAGE OF CONDUCTING CONSTITUENT IN THE MATERIAL BETWEEN THE PLATES.
Claim 2
Independent Claim
110 words
THE METHOD OF MEASURING THE PERCENTAGE OF CONDUCTING MATERIAL CONTAINED IN A FLUENT MATERIAL WHILE IN A CONFINED STREAM OF CONSTANT VOLUME AND UNDER A CONSTANT PRESSURE HEAD COMPRISING THE STEPS OF PASSING SAID STREAM OF MATERIAL BETWEEN THE PLATES OF A CONDENSER, SAID CONDENSER TOGETHER WITH THE MATERIAL LOCATED THEREIN CONSTITUTING A PART OF THE TOTAL CAPACITANCE OF A HIGH FREQUENCY SYSTEM, THE BALANCE OF THE CAPACITANCE IN SAID SYSTEM BEING OF A VALUE TO CREATE A TOTAL CAPACITANCE WITHIN A SELECTED, INTERMEDIATE PORTION OF THE CURRENTCAPACITANCE CURVE, AND MEASURING THE VARIATIONS IN CAPACITANCE CAUSED BY VARIATIONS IN THE PERCENTAGE OF CONDUCTING CONSTITUENT IN THE MATERIAL BETWEEN THE PLATES.
Claim 3
Dependent Claim
138 words
APPARATUS FOR TESTING FLUENT MATERIAL IN MOTION COMPRISING A MAIN CONDUIT THROUGH WHICH THE MATERIAL FLOWS, A SMALLER AND SECONDARY CONDUIT THE MOUTH OF WHICH IS LOCATED IN THE MAIN CONDUIT, A TESTING CHUTE, MEANS BETWEEN THE SECONDARY CONDUIT AND THE TESTING CHUTE TO SUPPLY A SUFFICIENT AMOUNT OF THE MATERIAL TO THE TESTING CHUTE TO CAUSE IT TO FILL THE TESTING CHUTE WITH A CONSTANT VOLUME OF THE MATERIAL, A CONVEYER AT THE DISCHARGE END OF THE TESTING CHUTE, MEANS TO OPERATE THE CONVEYER AT A CONSTANT SPEED TO MAINTAIN THE MATERIAL IN THE CHUTE AT A CONSTANT PRESSURE HEAD, CONDENSER PLATES IN THE TESTING CHUTE BETWEEN WHICH THE MATERIAL PASSES, AND A RADIO FREQUENCY SYSTEM COMPRISING THE CONDENSER PLATES, AND MEANS TO MEASURE THE CAPACITANCE TO THE CONDENSER PLATES AND THE MATERIAL BETWEEN THE CONDENSER PLATES.
Claim 4
Dependent Claim
138 words
APPARATUS FOR TESTING FLUENT MATERIAL IN MOTION COMPRISING A MAIN CONDUIT THROUGH WHICH THE MATERIAL FLOWS, A SMALLER AND SECONDARY CONDUIT THE MOUTH OF WHICH IS LOCATED IN THE MAIN CONDUIT, A TESTING CHUTE, MEANS BETWEEN THE SECONDARY CONDUIT AND THE TESTING CHUTE TO SUPPLY A SUFFICIENT AMOUNT OF THE MATERIAL TO THE TESTING CHUTE TO CAUSE IT TO FILL THE TESTING CHUTE WITH A CONSTANT VOLUME OF THE MATERIAL, A CONVEYER AT THE DISCHARGE END OF THE TESTING CHUTE, MEANS TO OPERATE THE CONVEYER AT A CONSTANT SPEED TO MAINTAIN THE MATERIAL IN THE CHUTE AT A CONSTANT PRESSURE HEAD, CONDENSER PLATES IN THE TESTING CHUTE BETWEEN WHICH THE MATERIAL PASSES, AND A RADIO FREQUENCY SYSTEM COMPRISING THE CONDENSER PLATES, AND MEANS TO MEASURE THE CAPACITANCE TO THE CONDENSER PLATES AND THE MATERIAL BETWEEN THE CONDENSER PLATES.
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |