US3306008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous high expansion foam generator with controlled expansion rates
Assignee: Individual
•
Filing: 1964-08-10
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Granted: 1967-02-28
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Silverman Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:30
CPC Classifications
G; G21; G21C; G21C9/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/28; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
HIGH EXPANSION FOAM GENERATING APPARATUS COMPRISING: (A) MEANS FOR PRODUCING THE FOAM CONSISTING OF A HOLLOW CYLINDRICAL MEMBER HAVING A SCREEN SURFACE; (B) A CONTAINER FOR SAID MEMBER; (C) MEANS MOUNTING SAID MEMBER FOR ROTATION AT LEAST PARTIALLY WITHIN SAID CONTAINER, SAID CONTAINER HAVING SUFFICIENT FOAMING LIQUID TO COVER A PORTION OF SAID SCREEN SURFACE WHICH IS THUS CONTINUOUSLY WETTED BY THE LIQUID IN SAID CONTAINER DURING ROTATION; AND (D) MEANS FOR PUMPING GAS UNDER SUFFICIENTLY HIGH PRESSURE DIRECTLY INTO SAID MEMBER, SAID GAS ESCAPING OUTWARDLY THROUGH SAID SCREEN SURFACE, TO CAUSE SAID LIQUID TO FORM FOAM OF ABOUT 900 TO 1 EXPANSION RATIO.
Claim 2
Dependent Claim
104 words
HIGH EXPANSION FOAM GENERATING APPARATUS COMPRISING: (A) MEANS FOR PRODUCING THE FOAM CONSISTING OF A HOLLOW CYLINDRICAL MEMBER HAVING A SCREEN SURFACE; (B) A CONTAINER FOR SAID MEMBER; (C) MEANS MOUNTING SAID MEMBER FOR ROTATION AT LEAST PARTIALLY WITHIN SAID CONTAINER, SAID CONTAINER HAVING SUFFICIENT FOAMING LIQUID TO COVER A PORTION OF SAID SCREEN SURFACE WHICH IS THUS CONTINUOUSLY WETTED BY THE LIQUID IN SAID CONTAINER DURING ROTATION; AND (D) MEANS FOR PUMPING GAS UNDER SUFFICIENTLY HIGH PRESSURE DIRECTLY INTO SAID MEMBER, SAID GAS ESCAPING OUTWARDLY THROUGH SAID SCREEN SURFACE, TO CAUSE SAID LIQUID TO FORM FOAM OF ABOUT 900 TO 1 EXPANSION RATIO.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |