US3256067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing ureaformaldehyde foams
Assignee: Honeywell International Inc
•
Filing: 1964-01-21
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Granted: 1966-06-14
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Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 Donald S Shriver
- 👤 Rob R Mac-Gregor
- 👤 William P Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:30
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; B; B29; B29B; B29B7/00; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7419; C08J2361/00; C08J2361/20; C08J2361/22; C08J2361/24; Y; Y10; Y10S; Y10S264/00; Y10S264/02; Y10S366/00; Y10S366/604; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
APPARATUS FOR CONTINUOUSLY PRODUCING STABLE RESINOUS FOAMS WHICH COMPRISE A LIQUID-TIGHT SUBSTANTIALLY CYLINDRICAL FOAMING CHAMBER HAVING AT ITS LOWER END A LIQUID INLET AND A GAS ATOMIZING INLET, A SUBSTANTIALLY CYLINDRICAL BLENDING CHAMBER TERMINATING IN A RESTRICTED THROAT, A SUBSTANTIALLY CYLINDRICAL CROSS-SECTIONAL TRANSVERSE FOAM TRANSFER LINE CONNECTING THE TOP OF SAID FOAMING CHAMBER AND SAID BLENDING HEAD, A RESIN INLET PIPE EXTENDING INTO SAID BLENDING HEAD AND TERMINATING WITHIN SAID THROAT, A SUBSTANTIALLY CYLINDRICAL CURE TUBE, EXTENDING DOWNWARDLY FROM SAID THROAT, SAID CURE TUBE HAVING A DIAMETER GREATER THAN THE DIAMETER OF THE THROAT BUT NOT GREATER THAN THE DIAMETER OF THE BLENDING HEAD, AND HAVING A LENGTH AT LEAST ABOUT 50 TIMES ITS DIAMETER.
Claim 2
Dependent Claim
115 words
APPARATUS FOR CONTINUOUSLY PRODUCING STABLE RESINOUS FOAMS WHICH COMPRISE A LIQUID-TIGHT SUBSTANTIALLY CYLINDRICAL FOAMING CHAMBER HAVING AT ITS LOWER END A LIQUID INLET AND A GAS ATOMIZING INLET, A SUBSTANTIALLY CYLINDRICAL BLENDING CHAMBER TERMINATING IN A RESTRICTED THROAT, A SUBSTANTIALLY CYLINDRICAL CROSS-SECTIONAL TRANSVERSE FOAM TRANSFER LINE CONNECTING THE TOP OF SAID FOAMING CHAMBER AND SAID BLENDING HEAD, A RESIN INLET PIPE EXTENDING INTO SAID BLENDING HEAD AND TERMINATING WITHIN SAID THROAT, A SUBSTANTIALLY CYLINDRICAL CURE TUBE, EXTENDING DOWNWARDLY FROM SAID THROAT, SAID CURE TUBE HAVING A DIAMETER GREATER THAN THE DIAMETER OF THE THROAT BUT NOT GREATER THAN THE DIAMETER OF THE BLENDING HEAD, AND HAVING A LENGTH AT LEAST ABOUT 50 TIMES ITS DIAMETER.
References Cited (Backward Citations)
DE826080C
Cited
US3015539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |