Patent US2084143A successfully refreshed from Google Patents.
US3273753A
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Pumping system and leak detection unit control therefor
Assignee: Geosource Inc
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Filing: 1965-03-25
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Granted: 1966-09-20
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Irving A Johnson
- 👤 Stasenko Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/32; B67D7/3209; F; F16; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PUMPING SYSTEM HAVING A PRESSURIZED DISCHARGE LINE AND AN ELECTRICAL CONTROL CIRCUIT FOR ACTUATING A PUMPING MEANS TO DISCHARGE FLUID THROUGH THE LINE, A VOLUME SENSITIVE LEAK DETECTOR COMPRISING, A CHAMBER CONNECTED TO THE PRESSURIZED LINE AND HAVING A MEMBER MOVABLY MOUNTED TO RESPOND TO THE VOLUME OF FLUID THEREIN AND HAVING MEANS URGING SAID MEMBER AGAINST THE FORCE OF THE LINE PRESSURE, AND A CONTROL MEANS HAVING A CIRCUIT ENABLING MEANS ADAPTED TO BE CONNECTED IN THE CONTROL CIRCUIT AND OPERABLY ASSOCIATED WITH SAID MEMBER TO DISPOSE THE ENABLING MEANS IN THE ENABLING POSITION WITH A SELECTED AMOUNT OF FLUID WITHIN THE CHAMBER AND TO DISPOSE THE ENABLING MEANS TO A DISABLING POSITION IN RESPONSE TO SELECTED VOLUMETRIC REDUCTION AS A RESULT OF FLUID DISCHARGED FROM SAID CHAMBER WHEREBY SAID CONTROL MEANS IS INSENSITIVE TO PRESSURE CHANGES AND SENSITIVE TO VOLUMETRIC CHANGES TO CONTROL THE PUMPING MEANS.
Claim 2
Dependent Claim
150 words
IN A PUMPING SYSTEM HAVING A PRESSURIZED DISCHARGE LINE AND AN ELECTRICAL CONTROL CIRCUIT FOR ACTUATING A PUMPING MEANS TO DISCHARGE FLUID THROUGH THE LINE, A VOLUME SENSITIVE LEAK DETECTOR COMPRISING, A CHAMBER CONNECTED TO THE PRESSURIZED LINE AND HAVING A MEMBER MOVABLY MOUNTED TO RESPOND TO THE VOLUME OF FLUID THEREIN AND HAVING MEANS URGING SAID MEMBER AGAINST THE FORCE OF THE LINE PRESSURE, AND A CONTROL MEANS HAVING A CIRCUIT ENABLING MEANS ADAPTED TO BE CONNECTED IN THE CONTROL CIRCUIT AND OPERABLY ASSOCIATED WITH SAID MEMBER TO DISPOSE THE ENABLING MEANS IN THE ENABLING POSITION WITH A SELECTED AMOUNT OF FLUID WITHIN THE CHAMBER AND TO DISPOSE THE ENABLING MEANS TO A DISABLING POSITION IN RESPONSE TO SELECTED VOLUMETRIC REDUCTION AS A RESULT OF FLUID DISCHARGED FROM SAID CHAMBER WHEREBY SAID CONTROL MEANS IS INSENSITIVE TO PRESSURE CHANGES AND SENSITIVE TO VOLUMETRIC CHANGES TO CONTROL THE PUMPING MEANS.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |