US3128782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small volume feeder pump and process of proportional feeding
Assignee: Individual
•
Filing: 1961-02-13
•
Granted: 1964-04-14
•
Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander S Limpert
- 👤 Robin J Limpert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; F; F04; F04B; F04B1/00; F04B1/02; F04B23/00; F04B23/04; F04B23/06; F04B43/00; F04B43/02; F04B43/025; F04B43/026; F04B43/06; F16; F16K; F16K21/00; F16K21/04; F16K21/16; G; G01; G01F; G01F11/00; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86139; Y10T137/86147
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
THE PROCESS OF PROPORTIONING ONE LIQUID CONTAINING AN ENTRAINED GAS WITH ANOTHER LIQUID FLOWING UNDER DESIRED PRESSURE AND HAVING A PARTICULAR RATE OF FLOW, WHICH COMPRISES SUPPLYING A FLOW OF SAID ONE LIQUID AT A FLOW RATE WHICH IS ARBITRARILY LARGE, REPETITIVELY INTERCEPTING AND MEASURING OUT DISCRETE AND PREDETERMINED-VOLUME PORTIONS OF LIQUID FROM SAID FLOW OF SAID ONE LIQUID AT A UNIFORM RATE OF REPETITION, INJECTING EACH SAID MEASUREDOUT PORTION OF SAID ONE LIQUID TOGETHER WITH AN ARBITRARY AMOUNT OF ENTRAINED GAS INTO SAID OTHER LIQUID, AND ADJUSTING THE SAID REPETITION RATE OF SAID INTERCEPTION, MEASURING, AND INJECTION TO PROVIDE A PREDETERMINED CONCENTRATION OF SAID ONE LIQUID IN SAID OTHER LIQUID AT THE SAID PARTICULAR RATE OF FLOW OF THE SAID OTHER LIQUID.
References Cited (Backward Citations)
US1225416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |