US3220801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Froth generator
Assignee: Motors Liquidation Co
•
Filing: 1962-05-31
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Granted: 1965-11-30
•
Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr John C Rill
- 👤 Paul F Shaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:15
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/80; B29B7/82; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/404; B29B7/58; B29B7/582; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7414; B29B7/76; B29B7/7605; B29B7/7615; B29B7/7631; B29B7/7636; B29B7/7652; B29B7/802; B29B7/803; B29B7/805; Y; Y10; Y10S; Y10S366/00; Y10S366/604; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
158 words
A POLYURETHANE FROTH GENERATOR INCLUDING AN ENCLOSURE ENCLOSING A MIXING CHAMBER, MEANS FOR DELIVERING PREDETERMINED PROPORTIONED QUANTITIES OF POLYURETHANE FORMING COMPONENETS TO THE MIXING CHAMBER INCLUDING A VOLATILE LIQUID GAS GENERATING INGREDIENT, MIXING MEANS IN SAID MIXING CHAMBER FOR MIXING SAID COMPONENTS, VALVE MEANS FOR CONTROLLING THE DISCHARGE OF SAID COMPONENTS INTO SAID MIXING CHAMBER, SAID MIXING CHAMBER BEING PROVIDED WITH AN OUTLET PASSAGE HAVING IN IT A COAXIALLY ALIGNED CIRCULAR PASSAGE BLOCKING MEANS, AN OUTLET NOZZLE SPACED FROM SAID PASSAGE BLOCKING MEANS HAVING A CIRCULAR ENTRANCE ADJACENT TO AND SPACE AT A SUBSTANTIALLY UNIFORM DISTANCE AWAY FROM AND COAXIALLY ALIGNED WITH SAID PASSAGE BLOCKING MEANS THROUGHOUT ITS ADJACENT SURFACE, A FLEXIBLE SLEEVE SURROUNDING AND CONCENTRIC WITH SAID PASSAGE BLOCKING MEANS AND HAVING ONE END SEALED TO THE FULL PERIPHERAL EXTENT OF SAID NOZZLE, MEANS FOR SEALING THE OTHER END OF SAID SLEEVE TO SAID MIXING CHAMBER ENCLOSURE PERIPHERALLY AROUND SAID OUTLET PASSAGE, AND MEANS FORSUBSTANTIALLY UNIFORMLY CONCEN-
References Cited (Backward Citations)
US2049774A
Cited
US2277196A
Cited
US2764565A
Cited
US2868518A
Cited
US2929436A
Cited
US2990252A
Cited
US3026183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |