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Patent US3268212A successfully refreshed from Google Patents.
US3268212A
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Foam generating machine
Assignee: MANUFACTURING PATENTS ASSOCIATES
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Filing: 1963-11-08
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Granted: 1966-08-23
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Albert E Ziselberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:32
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/235; B01F23/2351; Y; Y10; Y10S; Y10S366/00; Y10S366/604
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A FOAM GENERATING MACHINE, COMPRISING A HOUSING HAVING WALLS DEFINING A CLOSED, CIRCULAR CHAMBER HAVING CLOSED TOP AND BOTTOM AND A SUBSTANTIALLY IMPERFORATE ANNULAR WALL; AN ANNULAR ROTOR FITTED INTO SAID CHAMBER WITH CLOSE TOLERANCE, SAID ROTOR HAVING A CIRCUMFERENTIAL SERIES OF MUTUALLY SPACED, RESTRICTIVE PASSAGES, EXTENDING THERETHROUGH; RESTRICTIVE PASSAGE MEANS WITHIN AND EXTENDING THROUGH A LOCALIZED AREA OF THE SAID ANNULAR WALL FROM COMMUNICATION WITH SAID SERIES OF PASSAGES, AS THE ROTOR ROTATES, TO THE OUTSIDE OF SAID CHAMBER; MEANS FOR INTRODUCING WITHIN THE ROTOR AS IT ROTATES, A FOAM-FORMING SOLUTION HAVING A GAS ENTRAINED THEREIN; AND MEANS FOR ROTATING THE ROTOR.
Claim 2
Dependent Claim
103 words
A FOAM GENERATING MACHINE, COMPRISING A HOUSING HAVING WALLS DEFINING A CLOSED, CIRCULAR CHAMBER HAVING CLOSED TOP AND BOTTOM AND A SUBSTANTIALLY IMPERFORATE ANNULAR WALL; AN ANNULAR ROTOR FITTED INTO SAID CHAMBER WITH CLOSE TOLERANCE, SAID ROTOR HAVING A CIRCUMFERENTIAL SERIES OF MUTUALLY SPACED, RESTRICTIVE PASSAGES, EXTENDING THERETHROUGH; RESTRICTIVE PASSAGE MEANS WITHIN AND EXTENDING THROUGH A LOCALIZED AREA OF THE SAID ANNULAR WALL FROM COMMUNICATION WITH SAID SERIES OF PASSAGES, AS THE ROTOR ROTATES, TO THE OUTSIDE OF SAID CHAMBER; MEANS FOR INTRODUCING WITHIN THE ROTOR AS IT ROTATES, A FOAM-FORMING SOLUTION HAVING A GAS ENTRAINED THEREIN; AND MEANS FOR ROTATING THE ROTOR.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |