US3664551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering arrangement for polyurethane article producing machines
Assignee: ANTONIO FERRARI AND FIGLI SpA
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Filing: 1970-05-26
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Granted: 1972-05-23
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Expires: 1990-05-26
Abstract
Abstract AN ARRANGEMENT FOR SUPPLYING METERED AMOUNTS OF DIFFERENT FLUIDS TO A STATION WHERE SAID FLUIDS ARE COMBINED, WHEREIN A RECIPROCATING MOTOR DRIVES A ROCKING LEVER TO WHICH THE PISTONS OF METERING CYLINDERS ARE OPERATIVELY CONNECTED, EACH OF THE METERING CYLINDERS ARE CONNECTED TO A COMMON HEAD THROUGH A FIRST VALUE AND TO TANK THROUGH A SECOND VALVE, THE SHUTTING OFF FOR THE METERING IS DUE TO THE COOPERATION OF MEMBERS, ONE OF WHICH IS MOUNTED ALONG WITH THE OTHERS ON A DRUM WHICH CAN BE STEPWISE ROTATED, THESE MEMBERS MOUNTED ON THE DRUM BEING POSITIONED ALONG GUIDES ON THE DRUM PERIPHERY.
Inventors
- 👤 Giuseppe Ferrari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:15
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7174; B01F35/80; B01F35/88; B01F35/882; B01F35/8822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |