Patent US3073149A successfully refreshed from Google Patents.
US3073149A
Expired / Lapsed
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Method and apparatus for evaluating impedance characteristics of porous materials
Assignee: Individual
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Filing: 1959-12-30
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Granted: 1963-01-15
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Charles E Mongan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:55
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/08; G01N15/082; G01N15/0826
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
THE METHOD OF DETERMINING IMPEDANCE CHARACTERISTICS OF A MATERIAL TO THE FLOW OF A SPECIFIC FLUID, COMPRISING THE STEPS OF ENCASING A SAMPLE OF SAID MATERIAL IN AN ELONGATED TUBULAR SAMPLE HOLDER, APPLYING SAID SPECIFIC FLUID TO THE SAMPLE IN SAID HOLDER ACCORDING TO A PREDETERMINED PROGRAM OF CONTINUOUSLY VARYING PRESSURES TO CAUSE A FLOW OF SAID FLUID THROUGH SAID SAMPLE, AND MEASURING AND RECORDING DATA REPRESENTATIVE OF THE FLOW AND PRESSURE CHARACTERISTICS PRODUCED AS A RESULT OF THE FLOW OF SAID FLUID THROUGH THE SAMPLE IN SAID HOLDER.
Claim 2
Independent Claim
89 words
THE METHOD OF DETERMINING IMPEDANCE CHARACTERISTICS OF A MATERIAL TO THE FLOW OF A SPECIFIC FLUID, COMPRISING THE STEPS OF ENCASING A SAMPLE OF SAID MATERIAL IN AN ELONGATED TUBULAR SAMPLE HOLDER, APPLYING SAID SPECIFIC FLUID TO THE SAMPLE IN SAID HOLDER ACCORDING TO A PREDETERMINED PROGRAM OF CONTINUOUSLY VARYING PRESSURES TO CAUSE A FLOW OF SAID FLUID THROUGH SAID SAMPLE, AND MEASURING AND RECORDING DATA REPRESENTATIVE OF THE FLOW AND PRESSURE CHARACTERISTICS PRODUCED AS A RESULT OF THE FLOW OF SAID FLUID THROUGH THE SAMPLE IN SAID HOLDER.
Claim 3
Dependent Claim
159 words
APPARATUS FOR DETERMINING THE IMPEDANCE CHARACTERISTICS OF A MATERIAL COMPRISING A SAMPLE HOLDER IN THE FORM OF AN ELONGATED TUBE HAVING A PASSAGEWAY THERETHROUGH, SAID SAMPLE HOLDER BEING ADAPTED TO RECEIVE A SAMPLE OF THE MATERIAL TO BE TESTED, PRESSURE TRANSDUCER MEANS POSITIONED ADJACENT SAID HOLDER FOR PROVIDING SIGNALS INDICATIVE OF VARYING PRESSURE CONDITIONS IN SAID SAMPLE, MEANS FOR APPLYING A SPECIFIC FLUID TO SAID SAMPLE UNDER PRESSURE, VALVE MEANS FOR CONTROLLING THE APPLICATION OF SAID FLUID TO SAID SAMPLE, A PROGRAMMING ELEMENT ADAPTED TO PROVIDE SIGNALS REPRESENTATIVE OF A PREDETERMINED PROGRAM OF PRESSURES, MEANS RESPONSIVE TO SAID PROGRAMMING ELEMENT ADAPTED TO CONTROL THE POSITION OF SAID VALVE SO THAT SAID FLUID IS APPLIED TO SAID SAMPLE ACCORDING TO SAID PREDETERMINED PROGRAM OF PRESSURES, AND RECORDING EQUIPMENT FOR CONTEMPORANEOUSLY RECORDING FLUID AND PRESSURE CHARACTERISTICS IN THE SAMPLE UNDER TEST, SAID APPARATUS BEING ADAPTED TO PROVIDE DATA ENABLING THE CALCULATION OF THE IMPEDANCE OF SAID SAMPLE TO SAID SPECIFIC FLUID.
Claim 4
Dependent Claim
159 words
APPARATUS FOR DETERMINING THE IMPEDANCE CHARACTERISTICS OF A MATERIAL COMPRISING A SAMPLE HOLDER IN THE FORM OF AN ELONGATED TUBE HAVING A PASSAGEWAY THERETHROUGH, SAID SAMPLE HOLDER BEING ADAPTED TO RECEIVE A SAMPLE OF THE MATERIAL TO BE TESTED, PRESSURE TRANSDUCER MEANS POSITIONED ADJACENT SAID HOLDER FOR PROVIDING SIGNALS INDICATIVE OF VARYING PRESSURE CONDITIONS IN SAID SAMPLE, MEANS FOR APPLYING A SPECIFIC FLUID TO SAID SAMPLE UNDER PRESSURE, VALVE MEANS FOR CONTROLLING THE APPLICATION OF SAID FLUID TO SAID SAMPLE, A PROGRAMMING ELEMENT ADAPTED TO PROVIDE SIGNALS REPRESENTATIVE OF A PREDETERMINED PROGRAM OF PRESSURES, MEANS RESPONSIVE TO SAID PROGRAMMING ELEMENT ADAPTED TO CONTROL THE POSITION OF SAID VALVE SO THAT SAID FLUID IS APPLIED TO SAID SAMPLE ACCORDING TO SAID PREDETERMINED PROGRAM OF PRESSURES, AND RECORDING EQUIPMENT FOR CONTEMPORANEOUSLY RECORDING FLUID AND PRESSURE CHARACTERISTICS IN THE SAMPLE UNDER TEST, SAID APPARATUS BEING ADAPTED TO PROVIDE DATA ENABLING THE CALCULATION OF THE IMPEDANCE OF SAID SAMPLE TO SAID SPECIFIC FLUID.
References Cited (Backward Citations)
US2737804A
Cited
US2715331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |