US2707804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for steam curing frothed latex
Assignee: Uniroyal Inc
•
Filing: 1951-04-28
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Granted: 1955-05-10
•
Expires: 1971-04-28
Abstract
No abstract record available.
Inventors
- 👤 Harold A Thornburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:19
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B29C33/04; B29C33/048; Y; Y10; Y10S; Y10S261/00; Y10S261/26; Y10S264/00; Y10S264/11; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN COMBINATION WITH A MOLD FOR SHAPING AND VULCANIZING A MASS OF FROTHED LATEX, HOLLOW CORES PROJECTING INTO THE MOLD AT SELECTED POINTS FROM A SURFACE THEREOF AND EACH CORE HAVING AN APERTURED WALL THAT DISCHARGES STEAM INTO THE LATEX FROTH SURROUNDING SUCH CORES, MEANS FOR SUPPLYING DRY SUPERHEATED STEAM TO SAID CORES SO THAT IT WILL ESCAPE FROM THE CORES INTO THE LATEX FROTH IN A DRY CONDITION AT A PRESSURE OF LESS THAN TWO POUNDS TO CURE THE FROTH, INCLUDING A SOURCE OF STEAM SUPPLY CONNECTED TO THE BASE OF SAID CORES, AND A STEAM FILTER ADJACENT THE BASE OF EACH HOLLOW CORE AND ADAPTED TO REDUCE THE STEAM PRESSURE A SUBSTANTIAL AMOUNT AS IT PASSES FROM THE SUPPLY SOURCE INTO THE CORES.
Claim 2
Dependent Claim
125 words
IN COMBINATION WITH A MOLD FOR SHAPING AND VULCANIZING A MASS OF FROTHED LATEX, HOLLOW CORES PROJECTING INTO THE MOLD AT SELECTED POINTS FROM A SURFACE THEREOF AND EACH CORE HAVING AN APERTURED WALL THAT DISCHARGES STEAM INTO THE LATEX FROTH SURROUNDING SUCH CORES, MEANS FOR SUPPLYING DRY SUPERHEATED STEAM TO SAID CORES SO THAT IT WILL ESCAPE FROM THE CORES INTO THE LATEX FROTH IN A DRY CONDITION AT A PRESSURE OF LESS THAN TWO POUNDS TO CURE THE FROTH, INCLUDING A SOURCE OF STEAM SUPPLY CONNECTED TO THE BASE OF SAID CORES, AND A STEAM FILTER ADJACENT THE BASE OF EACH HOLLOW CORE AND ADAPTED TO REDUCE THE STEAM PRESSURE A SUBSTANTIAL AMOUNT AS IT PASSES FROM THE SUPPLY SOURCE INTO THE CORES.
References Cited (Backward Citations)
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US2266831A
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US2378586A
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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) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |