Patent US3308649A successfully refreshed from Google Patents.
US3308649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid contamination analyzer
Assignee: General Dynamics Corp
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Filing: 1963-12-23
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Granted: 1967-03-14
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Colechia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:23
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A FLUID CONTAMINATION ANALYZER COMPRISING; A SEALED SELF CONTAINED UNIT, SAID UNIT INCLUDING A SAMPLE CHAMBER ASSEMBLY HAVING A SAMPLE TANK AND A MOVABLE SEALING ELEMENT FOR SAID TANK, AN INLET CONDUIT CONNECTED TO SAID SEALING ELEMENT, A FIRST INLET IN SAID INLET CONDUIT FOR ADMITTING A LIQUID TO SAID ASSEMBLY, A SECOND INLET IN SAID INLET CONDUIT FOR ADMITTING A GAS SAMPLE, A REAGENT TANK CONNECTED TO SAID INLET CONDUIT, SOLENOID VALVE MEANS FOR SELECTIVELY CONTROLLING THE FLOW OF FLUID FROM SAID FIRST AND SECOND INLETS AND SAID REAGENT TANK, A VACUUM PUMP AND VALVE ASSEMBLY CONNECTED TO SAID SAMPLE TANK FOR SELECTIVELY CREATING A VACUUM INDUCED FLUID FLOW TO SAID TANK, A FLUID OUTLET CONDUIT CONNECTED TO SAID SAMPLE TANK, SOLENOID VALVE MEANS FOR CONTROLLING THE FLOW OF FLUID IN SAID OUTLET CONDUIT, A FILTER TAPE HAVING INDIVIDUAL SPACED FILTER PADS THEREON, MEANS FOR INDEXING SAID TAPE BETWEEN SAID SEALING ELEMENT AND SAID TANK, WHEREBY INDIVIDUAL FILTER PADS MAY BE SEQUENTIALLY SEALED BETWEEN SAID ELEMENT AND SAID TANK FOR EXPOSURE TO AND CONTAMINATION BY FLUID ADMITTED TO SAID UNIT, MICROSCOPIC ANALYSIS APPARATUS POSITIONED ADJACENT TO THE SAMPLE CHAMBER ASSEMBLY FOR
Claim 2
Dependent Claim
192 words
A FLUID CONTAMINATION ANALYZER COMPRISING; A SEALED SELF CONTAINED UNIT, SAID UNIT INCLUDING A SAMPLE CHAMBER ASSEMBLY HAVING A SAMPLE TANK AND A MOVABLE SEALING ELEMENT FOR SAID TANK, AN INLET CONDUIT CONNECTED TO SAID SEALING ELEMENT, A FIRST INLET IN SAID INLET CONDUIT FOR ADMITTING A LIQUID TO SAID ASSEMBLY, A SECOND INLET IN SAID INLET CONDUIT FOR ADMITTING A GAS SAMPLE, A REAGENT TANK CONNECTED TO SAID INLET CONDUIT, SOLENOID VALVE MEANS FOR SELECTIVELY CONTROLLING THE FLOW OF FLUID FROM SAID FIRST AND SECOND INLETS AND SAID REAGENT TANK, A VACUUM PUMP AND VALVE ASSEMBLY CONNECTED TO SAID SAMPLE TANK FOR SELECTIVELY CREATING A VACUUM INDUCED FLUID FLOW TO SAID TANK, A FLUID OUTLET CONDUIT CONNECTED TO SAID SAMPLE TANK, SOLENOID VALVE MEANS FOR CONTROLLING THE FLOW OF FLUID IN SAID OUTLET CONDUIT, A FILTER TAPE HAVING INDIVIDUAL SPACED FILTER PADS THEREON, MEANS FOR INDEXING SAID TAPE BETWEEN SAID SEALING ELEMENT AND SAID TANK, WHEREBY INDIVIDUAL FILTER PADS MAY BE SEQUENTIALLY SEALED BETWEEN SAID ELEMENT AND SAID TANK FOR EXPOSURE TO AND CONTAMINATION BY FLUID ADMITTED TO SAID UNIT, MICROSCOPIC ANALYSIS APPARATUS POSITIONED ADJACENT TO THE SAMPLE CHAMBER ASSEMBLY FOR
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |