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US2819753A
Expired / Lapsed
US
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Method of making an inflated hollow rubber article
Assignee: Individual
•
Filing: 1956-06-18
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Granted: 1958-01-14
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Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Nogue Carlos Capella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:44
CPC Classifications
B; B29; B29D; B29D22/00; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S52/00; Y10S52/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
THE METHOD OF MANUFACTURING A HOLLOW RUBBER ARTICLE WHICH COMPRISES THE STEPS OF PREPARING BLANK WALL SECTIONS, EACH CONSISTING OF TWO SUPERPOSED LAYERS OF VULCANIZABLE RUBBER SHEET, ONE LAYER BEING THE INNER LAYER OF THE ARTICLE BEING PROVIDED WITH A FOAMING AGENT ADAPTED TO BE ACTIVATED BY VULCANIZING AND UNIFORMLY DISTRIBUTED THEREIN; ASSEMBLING TOGETHER THE BLANK WALL SECTIONS SUBSTANTIALLY TO THE SHAPE OF THE HOLLOW ARTICLE AND SEAMING ALL BUT ONE OF THE ADJOINING EDGES OF THE SECTIONS; INTRODUCING AN EXPANDING AGENT BETWEEN THE OPEN ADJOINING EDGES INTO THE CAVITY WITHIN THE ARTICLE FORMED BY THE ASSEMBLED BLANK SECTIONS, SEAMING THE OPEN ADJOINING SHAPE AND SIZE, AND VULCANIZING THE INFLATED ARTICLE WITHIN A MOLD HAVING THE DESIRED FINAL CONTOUR OF THE ARTICLE SO THAT SAID LAYERS ARE VULCANIZED TOGETHER WHILE SAID EXPANDING AGENT HOLDS THE ARTICLE AGAINST THE MOLD SURFACE, AND SAID FOAMING AGENT CAUSES THE FORMATION WITHIN SAID INNER LAYER OF A MULTIPLICITY OF CELLS SEPARATED FROM EACH OTHER AND EACH ENCLOSING A GASEOUS MEDIUM.
Claim 2
Independent Claim
166 words
THE METHOD OF MANUFACTURING A HOLLOW RUBBER ARTICLE WHICH COMPRISES THE STEPS OF PREPARING BLANK WALL SECTIONS, EACH CONSISTING OF TWO SUPERPOSED LAYERS OF VULCANIZABLE RUBBER SHEET, ONE LAYER BEING THE INNER LAYER OF THE ARTICLE BEING PROVIDED WITH A FOAMING AGENT ADAPTED TO BE ACTIVATED BY VULCANIZING AND UNIFORMLY DISTRIBUTED THEREIN; ASSEMBLING TOGETHER THE BLANK WALL SECTIONS SUBSTANTIALLY TO THE SHAPE OF THE HOLLOW ARTICLE AND SEAMING ALL BUT ONE OF THE ADJOINING EDGES OF THE SECTIONS; INTRODUCING AN EXPANDING AGENT BETWEEN THE OPEN ADJOINING EDGES INTO THE CAVITY WITHIN THE ARTICLE FORMED BY THE ASSEMBLED BLANK SECTIONS, SEAMING THE OPEN ADJOINING SHAPE AND SIZE, AND VULCANIZING THE INFLATED ARTICLE WITHIN A MOLD HAVING THE DESIRED FINAL CONTOUR OF THE ARTICLE SO THAT SAID LAYERS ARE VULCANIZED TOGETHER WHILE SAID EXPANDING AGENT HOLDS THE ARTICLE AGAINST THE MOLD SURFACE, AND SAID FOAMING AGENT CAUSES THE FORMATION WITHIN SAID INNER LAYER OF A MULTIPLICITY OF CELLS SEPARATED FROM EACH OTHER AND EACH ENCLOSING A GASEOUS MEDIUM.
References Cited (Backward Citations)
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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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |