Patent US3124270A successfully refreshed from Google Patents.
US3124270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cornell
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/12; F04B1/00; F04B1/04; F04B1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A LIQUID PUMPING AND METERING SYSTEM, IN COMBINATION, A METERING PUMP, MEANS FOR SUPPLYING LIQUID TO THE PUMP AT A PRESSURE SUBSTANTIALLY EQUAL TO THE DISCHARGE PRESSURE OF THE PUMP, VOLUMETRIC DISPLACEMENT CONTROL MEANS FOR THE PUMP THAT VARIES THE PUMP VOLUMETRIC DISPLACEMENT IN EXACT PROPORTION TO THE MOVEMENT OF THE CONTROL MEANS, A LINEAR DISPLACEMENT INDICATOR, DRIVE MEANS COUPLED TO THE CONTROL MEANS FOR DRIVING THE LINEAR DISPLACEMENT INDICATOR THROUGH EQUAL INCREMENTS OF DISTANCE FOR EQUAL INCREMENTS OF MOVEMENT OF THE CONTROL MEANS, AND MEANS FOR ADJUSTING SAID DRIVE MEANS TO VARY THE MAGNITUDE OF AN INCREMENT OF DISTANCE PER INCREMENT OF MOVEMENT OF THE CONTROL MEANS.
Claim 2
Dependent Claim
109 words
IN A LIQUID PUMPING AND METERING SYSTEM, IN COMBINATION, A METERING PUMP, MEANS FOR SUPPLYING LIQUID TO THE PUMP AT A PRESSURE SUBSTANTIALLY EQUAL TO THE DISCHARGE PRESSURE OF THE PUMP, VOLUMETRIC DISPLACEMENT CONTROL MEANS FOR THE PUMP THAT VARIES THE PUMP VOLUMETRIC DISPLACEMENT IN EXACT PROPORTION TO THE MOVEMENT OF THE CONTROL MEANS, A LINEAR DISPLACEMENT INDICATOR, DRIVE MEANS COUPLED TO THE CONTROL MEANS FOR DRIVING THE LINEAR DISPLACEMENT INDICATOR THROUGH EQUAL INCREMENTS OF DISTANCE FOR EQUAL INCREMENTS OF MOVEMENT OF THE CONTROL MEANS, AND MEANS FOR ADJUSTING SAID DRIVE MEANS TO VARY THE MAGNITUDE OF AN INCREMENT OF DISTANCE PER INCREMENT OF MOVEMENT OF THE CONTROL 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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |