US3293338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making foam articles
Assignee: Honeywell International Inc
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Filing: 1962-11-23
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Granted: 1966-12-20
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Walter D Voelker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:33
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD OF PRODUCING SHAPED ARTICLES OF POLYURETHANE FOAM ON A CONTINUAL BASIS WHICH COMPRISES CONTINUOUSLY PRPARING A LIQUID POLYURETHANE-FOAM-FORMINGCOMPOSITION, CONTINUOUSLY DIRECTING THE LIQUID COMPOSITION TO A DIPPING VAT SO AS TO MAINTAIN A POOL THEREOF WITHIN THE VAT, SUCCESSIVELY IMMERSING EACH OF A PLUTALITY OF ADVANCING FORMS WHICH ARE POSITIONED ABOVE THE DIPPING VAT AND HAVE THE SHAPE OF THE DESIRED POLYURETHANE FOAM ARTICLE IN THE POOL, WITHDRAWING THE FORM FORM THE VAT WITH A COATING OF THE POLYURETHANE-FOAM-FORMING-COMPOSITION ADHERING THERETO, HEATING THE COATED FROM TO CURE THE COATING TO A POLYURETHANE FOAM ARTICLE OF THE DESIRED SHAPE, AND REMOVING THE POLYURETHANE FOAM ARTICLE FROM THE FORM; SAID DIPPING VAT HAVING A SHAPE LIKE THAT OF SAID FORM AND A VOLUME OF SUCH MAGNITUDE THAT THE IMMERSED FORM DISPLACES A SUBSTANTIAL PROPORTION OF THE POLYURETHANE-FOAM-FORMING-COMPOSITION CONTAINED THEREIN, SAID POLYURETHANE-FOAM-FORMING-COMPOSITION BEING CONTINUOUSLY SUPPLIED TO SAID VAT AT A RATE EQUAL TO THE
Claim 2
Independent Claim
152 words
A METHOD OF PRODUCING SHAPED ARTICLES OF POLYURETHANE FOAM ON A CONTINUAL BASIS WHICH COMPRISES CONTINUOUSLY PRPARING A LIQUID POLYURETHANE-FOAM-FORMINGCOMPOSITION, CONTINUOUSLY DIRECTING THE LIQUID COMPOSITION TO A DIPPING VAT SO AS TO MAINTAIN A POOL THEREOF WITHIN THE VAT, SUCCESSIVELY IMMERSING EACH OF A PLUTALITY OF ADVANCING FORMS WHICH ARE POSITIONED ABOVE THE DIPPING VAT AND HAVE THE SHAPE OF THE DESIRED POLYURETHANE FOAM ARTICLE IN THE POOL, WITHDRAWING THE FORM FORM THE VAT WITH A COATING OF THE POLYURETHANE-FOAM-FORMING-COMPOSITION ADHERING THERETO, HEATING THE COATED FROM TO CURE THE COATING TO A POLYURETHANE FOAM ARTICLE OF THE DESIRED SHAPE, AND REMOVING THE POLYURETHANE FOAM ARTICLE FROM THE FORM; SAID DIPPING VAT HAVING A SHAPE LIKE THAT OF SAID FORM AND A VOLUME OF SUCH MAGNITUDE THAT THE IMMERSED FORM DISPLACES A SUBSTANTIAL PROPORTION OF THE POLYURETHANE-FOAM-FORMING-COMPOSITION CONTAINED THEREIN, SAID POLYURETHANE-FOAM-FORMING-COMPOSITION BEING CONTINUOUSLY SUPPLIED TO SAID VAT AT A RATE EQUAL TO THE
References Cited (Backward Citations)
US2254262A
Cited
US2169847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |