Patent US3244571A successfully refreshed from Google Patents.
US3244571A
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Process for dielectrically embossing polyurethane foam assemblies
Assignee: Individual
•
Filing: 1963-05-02
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Granted: 1966-04-05
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Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Weisman Morey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
B; B60; B60R; B60R13/00; B60R13/02; B29; B29C; B29C44/00; B29C44/02; B29C44/10; B29C44/34; B29C44/56; B29C44/5627; B29C44/5636; B29C59/00; B29C59/02; B29C59/026; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/45; B29C66/70; B29C66/71; B29C66/712; B29C66/72; B29C66/727; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B29C66/729; B29C66/7292; B29C66/73; B29C66/731; B29C66/7314; B29C66/73143; B29L; B29L2009/00; Y; Y10; Y10S; Y10S264/00; Y10S264/17; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24521; Y10T428/24537; Y10T428/2457; Y10T428/24595; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF HEAT SEALING A TRIM ASSEMBLY INCLUDING A FLEXIBLE POLYURETHANE FOAM LAYER AND AT LEAST ONE LAYER OF DIELECTRICALLY HEAT-SEALABLE DISSIMILAR MATERIAL, COMPRISING THE STEPS OF INTERMINGLING WITH A LIQUID FOANING POLYURETHANE MIXTURE IMPURITIES IN AN AMOUNT TO ALTER THE DIELECTRIC PROPERTIES THEREOF TO AN EXTENT WHEREBY THE FOAM AND THE DISSIMILAR MATERIAL ARE SIMILARLY RESPONSIVE DIELECTRICALLY, FOAMING AND CURING SAID MIXTURE TO PRODUCE A FLEXIBLE FOAM LAYER IN WHICH SAID IMPURITIES ARE DISPERSED, SUBJECTING THE ASSEMBLY TO PRESSURE, AND EXPOSING THE PRESSED ASSEMBLY TO A HIGH-FREQUENCY ELECTRIC FIELD TO EFFECT DIELECTRIC HEAT SEALING.
Claim 2
Independent Claim
96 words
THE METHOD OF HEAT SEALING A TRIM ASSEMBLY INCLUDING A FLEXIBLE POLYURETHANE FOAM LAYER AND AT LEAST ONE LAYER OF DIELECTRICALLY HEAT-SEALABLE DISSIMILAR MATERIAL, COMPRISING THE STEPS OF INTERMINGLING WITH A LIQUID FOANING POLYURETHANE MIXTURE IMPURITIES IN AN AMOUNT TO ALTER THE DIELECTRIC PROPERTIES THEREOF TO AN EXTENT WHEREBY THE FOAM AND THE DISSIMILAR MATERIAL ARE SIMILARLY RESPONSIVE DIELECTRICALLY, FOAMING AND CURING SAID MIXTURE TO PRODUCE A FLEXIBLE FOAM LAYER IN WHICH SAID IMPURITIES ARE DISPERSED, SUBJECTING THE ASSEMBLY TO PRESSURE, AND EXPOSING THE PRESSED ASSEMBLY TO A HIGH-FREQUENCY ELECTRIC FIELD TO EFFECT DIELECTRIC HEAT SEALING.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |