US2574391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filling molds with foamed latex
Assignee: Uniroyal Inc
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Filing: 1948-06-15
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Granted: 1951-11-06
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Expires: 1968-06-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Herrly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:56
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29B; B29B7/00; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7414; B29C33/00; B29C33/34; B29K; B29K2021/00; B29K2105/00; B29K2105/0058; B29K2105/0064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
APPARATUS FOR FILLING VULCANIZING MOLDS WITH A FOAMED DISPERSION OF A RUBBER-LIKE MATERIAL, COMPRISING AN AIR-TIGHT CONTAINER, A PREFROTHER RECEPTACLE WITHIN THE CONTAINER AND HAVING A POWER DRIVEN BEATER TO WHIP THE MATERIAL AND TUBES FOR SUPPLYING A LIQUID DISPERSION MATERIAL AND AIR TO THE LOWER PORTION OF THE RECEPTACLE, A SENSITIZING TUB POSITIONED IN THE CONTAINER TO RECEIVE THE DISCHARGED FOAM FROM SAID RECEPTACLE A FOAM DELIVERY PIPE LEADING FROM THE BOTTOM OF THE TUB THROUGH A WALL OF THE CONTAINER TO A CLOSED MOLD, AND MEANS FOR MAINTAINING AN ABOVE ATMOSPHERE AIR PRESSURE IN THE CONTAINER TO FORCE THE FOAMED MATERIAL THROUGH SAID PIPE INTO THE CLOSED MOLD WITHOUT CRUSHING THE FOAM OR SUBJECTING IT TO AN EXTERNAL AIR PRESSURE GREATER THAN THE AIR PRESSURE WITHIN THE FOAM CELLS.
Claim 2
Dependent Claim
131 words
APPARATUS FOR FILLING VULCANIZING MOLDS WITH A FOAMED DISPERSION OF A RUBBER-LIKE MATERIAL, COMPRISING AN AIR-TIGHT CONTAINER, A PREFROTHER RECEPTACLE WITHIN THE CONTAINER AND HAVING A POWER DRIVEN BEATER TO WHIP THE MATERIAL AND TUBES FOR SUPPLYING A LIQUID DISPERSION MATERIAL AND AIR TO THE LOWER PORTION OF THE RECEPTACLE, A SENSITIZING TUB POSITIONED IN THE CONTAINER TO RECEIVE THE DISCHARGED FOAM FROM SAID RECEPTACLE A FOAM DELIVERY PIPE LEADING FROM THE BOTTOM OF THE TUB THROUGH A WALL OF THE CONTAINER TO A CLOSED MOLD, AND MEANS FOR MAINTAINING AN ABOVE ATMOSPHERE AIR PRESSURE IN THE CONTAINER TO FORCE THE FOAMED MATERIAL THROUGH SAID PIPE INTO THE CLOSED MOLD WITHOUT CRUSHING THE FOAM OR SUBJECTING IT TO AN EXTERNAL AIR PRESSURE GREATER THAN THE AIR PRESSURE WITHIN THE FOAM CELLS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |