Patent US3138015A successfully refreshed from Google Patents.
US3138015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fluid testing mechanism
Assignee: Union Tank Car Co
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Filing: 1960-12-29
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Granted: 1964-06-23
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Hazelton H Avery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
FLUID TESTING MECHANISM COMPRISING, A FILTER HAVING A HEAD AND A BODY AND A PASSAGE IN SAID HEAD AND BODY FOR CONDUCTING FLUID FROM ONE TO THE OTHER THEREOF; INLET AND OUTLET PORTS FOR SAID PASSAGE, A SUPPLY OF FILTER TAPE; MEANS FOR GUIDING TAPE FROM SAID SUPPLY ALONG A PATH EXTENDING BETWEEN SAID HEAD AND BODY AND ACROSS SAID PASSAGE, FLUID INLET AND OUTLET CONDUITS CONNECTED TO SAID INLET AND OUTLET PORTS RESPECTIVELY; POWER ACTUATED VALVE MEANS INTERPOSED IN SAID INLET CONDUIT TO CONTROL THE FLOW OF FLUID TO SAID FILTER; POWER ACTUATED TAPE MOVING MEANS ADAPTED TO INTERMITTENTLY ADVANCE THE TAPE ALONG SAID PATH STEP BY STEP; AND MEANS FOR SEQUENTIALLY ENERGIZING SAID TAPE MOVING MEANS AND VALVE MEANS TO SUCCESSIVELY CONDUCT A SAMPLE OF FLUID THROUGH THE FILTER AND TAPE, INTERRUPT THE FLOW THROUGH THE FILTER, AND ADVANCE THE TAPE TO ANOTHER FILTERING POSITION.
Claim 2
Dependent Claim
147 words
FLUID TESTING MECHANISM COMPRISING, A FILTER HAVING A HEAD AND A BODY AND A PASSAGE IN SAID HEAD AND BODY FOR CONDUCTING FLUID FROM ONE TO THE OTHER THEREOF; INLET AND OUTLET PORTS FOR SAID PASSAGE, A SUPPLY OF FILTER TAPE; MEANS FOR GUIDING TAPE FROM SAID SUPPLY ALONG A PATH EXTENDING BETWEEN SAID HEAD AND BODY AND ACROSS SAID PASSAGE, FLUID INLET AND OUTLET CONDUITS CONNECTED TO SAID INLET AND OUTLET PORTS RESPECTIVELY; POWER ACTUATED VALVE MEANS INTERPOSED IN SAID INLET CONDUIT TO CONTROL THE FLOW OF FLUID TO SAID FILTER; POWER ACTUATED TAPE MOVING MEANS ADAPTED TO INTERMITTENTLY ADVANCE THE TAPE ALONG SAID PATH STEP BY STEP; AND MEANS FOR SEQUENTIALLY ENERGIZING SAID TAPE MOVING MEANS AND VALVE MEANS TO SUCCESSIVELY CONDUCT A SAMPLE OF FLUID THROUGH THE FILTER AND TAPE, INTERRUPT THE FLOW THROUGH THE FILTER, AND ADVANCE THE TAPE TO ANOTHER FILTERING POSITION.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |