Patent US3230047A successfully refreshed from Google Patents.
US3230047A
Expired / Lapsed
US
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Apparatus for the production of polyurethane plastics
Assignee: Bayer AG
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Filing: 1962-11-30
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Granted: 1966-01-18
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Weinbrenner Erwin
- 👤 Hoppe Peter
- 👤 Breer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:35
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; C08G18/222; B; B29; B29B; B29B7/00; B29B7/74; B29B7/7461; B29B7/7476; B29B7/7485; C08G18/0895; Y; Y10; Y10S; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN APPARATUS FOR MXING THE COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A FIRST MIXING CHAMBER HAVING AN AGITATOR DISPOSED THEREIN, A DISCHARGE OUTLET AND AT LEAST TWO INLETS AT LEAST ONE OF WHICH IS A MEANS FOR INJECTING UNDER PRESSURE A FIRST COMPONENT INTO A SECOND COMPONENT, SEPARATE SUPPLY CONTAINERS FOR EACH OF SAID FIRST AND SECOND COMPONENTRS, A PUMPING MEANS HAVING A SUCTION SIDE AND A DISCHARGE SIDE, A FIRST CONDUIT CONNECTING SAID DISCHARGE OUTLET OF SAID FIRST MIXING CHAMBER TO SAID SUCTION SIDE OF SAID PUMPING MEANS, A SECOND MIXING CHAMBER HAVING A DISCHARGE OUTLET AND A FIRST AND SECOND INLET, AT LEAST ONE OF WHICH IS AN INJECTION MEANS FOR INTRODUCING A COMPONENT UNDER PRESSURE, AND A SECOND CONDUIT CONNECTING THE DISCHARGE SIDE OF SAID PUMPING MEANS WITH SAID FIRST INLET OF SAID SECOND MXING CHAMBER, A SECOND PUMPING MEANS AND A THIRD CONDUIT FOR CONNECTING SAID SECOND PUMPINGT MEANS WITH SAID SECOND INLET OF SAID SECOND MIXING CHAMBER.
Claim 2
Independent Claim
163 words
AN APPARATUS FOR MXING THE COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A FIRST MIXING CHAMBER HAVING AN AGITATOR DISPOSED THEREIN, A DISCHARGE OUTLET AND AT LEAST TWO INLETS AT LEAST ONE OF WHICH IS A MEANS FOR INJECTING UNDER PRESSURE A FIRST COMPONENT INTO A SECOND COMPONENT, SEPARATE SUPPLY CONTAINERS FOR EACH OF SAID FIRST AND SECOND COMPONENTRS, A PUMPING MEANS HAVING A SUCTION SIDE AND A DISCHARGE SIDE, A FIRST CONDUIT CONNECTING SAID DISCHARGE OUTLET OF SAID FIRST MIXING CHAMBER TO SAID SUCTION SIDE OF SAID PUMPING MEANS, A SECOND MIXING CHAMBER HAVING A DISCHARGE OUTLET AND A FIRST AND SECOND INLET, AT LEAST ONE OF WHICH IS AN INJECTION MEANS FOR INTRODUCING A COMPONENT UNDER PRESSURE, AND A SECOND CONDUIT CONNECTING THE DISCHARGE SIDE OF SAID PUMPING MEANS WITH SAID FIRST INLET OF SAID SECOND MXING CHAMBER, A SECOND PUMPING MEANS AND A THIRD CONDUIT FOR CONNECTING SAID SECOND PUMPINGT MEANS WITH SAID SECOND INLET OF SAID SECOND MIXING CHAMBER.
References Cited (Backward Citations)
US2764565A
Cited
US2779689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |