US3333543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering pump
Assignee: Sonal SARL
•
Filing: 1964-12-18
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Granted: 1967-08-01
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Albaut Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:46
CPC Classifications
F; F04; F04B; F04B7/00; F04B7/0042; F04B7/0053; F04B9/00; F04B9/02; F04B9/04; F04B9/042; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A METERING PUMP HAVING A SMOOTH ADJUSTABLE DELIVERY FLOW COMPRISING: (A) A PUMP BODY INCLUDING A CYLINDER AND A PUMP PISTON, (B) A SYNCHRONOUS MOTOR, (C) POSITIVE DRIVING MEANS CONNECTING SAID MOTOR TO THE SAID PUMP PISTON, (D) SUCTION AND DELIVERY VALVES MOUNTED IN A DISTRIBUTOR UNIT, (E) DUCT MEANS TO PROVIDE THE CIRCULATION OF A LIQUID FROM THE SAID PUMP BODY TO THE SAID VALVES, (F) ROCKER MEANS FOR ACTUATING EACH VALVE, (G) A PUSHER MEMBER CONNECTED TO THE ROCKER MEANS FOR ACTUATING SUCCESSIVELY EACH VALVE THROUGH THE POSITIVE DRIVING MEANS, WHEREBY A REGULAR AND SMOOTH LIQUID DELIVERY IS OBTAINED DURING THE ACTUATION OF THE VALVES.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |