US3285578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Imperial Chemical Industries Ltd
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Filing: 1964-02-07
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Granted: 1966-11-15
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Edwards Harry
- 👤 Woods George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:37
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/02; B29B7/06; B29B7/10; B01; B01F; B01F29/00; B01F29/80; B01F29/83; B01F29/86; B01F35/00; B01F35/45; B01F35/453; B29B7/30; B29B7/58; B29B7/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
MIXING APPARATUS SUITABLE FOR MIXING THE INGREDIENTS USED DURING MANUFACTURE OF POLYURETHANE FOAM COMPRISING A ROTATABLE MIXING CHAMBER THAT IS ROTATABLE ABOUT A VERTICAL AXIS, SAID MIXING CHAMBER HAVING A PLURALITY OF INLETS AND A CLOSABLE OUTLET FED FROM THE INTERNAL PERIPHERY OF THE CHAMBER, AT LEAST ONE BAFFLE BEING DISPOSED INSIDE SAID MIXING CHAMBER, SAID BAFFLE BEING ROTATABLE ABOUT A VERTICAL AXIS INDEPENDENTLY OF THE MIXING CHAMBER, THE LOWER PORTION OF SAID CHAMBER BEING IN THE SHAPE OF A TRUNCATED CONE, AND THE OUTLET FED FROM THE BASE OF THE CONE.
Claim 2
Dependent Claim
92 words
MIXING APPARATUS SUITABLE FOR MIXING THE INGREDIENTS USED DURING MANUFACTURE OF POLYURETHANE FOAM COMPRISING A ROTATABLE MIXING CHAMBER THAT IS ROTATABLE ABOUT A VERTICAL AXIS, SAID MIXING CHAMBER HAVING A PLURALITY OF INLETS AND A CLOSABLE OUTLET FED FROM THE INTERNAL PERIPHERY OF THE CHAMBER, AT LEAST ONE BAFFLE BEING DISPOSED INSIDE SAID MIXING CHAMBER, SAID BAFFLE BEING ROTATABLE ABOUT A VERTICAL AXIS INDEPENDENTLY OF THE MIXING CHAMBER, THE LOWER PORTION OF SAID CHAMBER BEING IN THE SHAPE OF A TRUNCATED CONE, AND THE OUTLET FED FROM THE BASE OF THE CONE.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |