Patent US2541644A successfully refreshed from Google Patents.
US2541644A
Expired / Lapsed
US
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Apparatus for vulcanizing pneumatic tires with radio-frequency current
Assignee: Wingfoot Corp
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Filing: 1948-12-15
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Granted: 1951-02-13
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Expires: 1968-12-15
Abstract
No abstract record available.
Inventors
- 👤 Robert S Enabnit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:18
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29C; B29C35/00; B29C35/02; B29C35/12; B29C43/00; B29C43/02; B29C43/10; B29C43/102; B29C43/104; B29C35/08; B29C35/0805; B29C2035/0861; B29L; B29L2030/00; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
APPARATUS FOR VULCANIZING PNEUMATIC TIRES INCLUDING UPPER AND LOWER PLATENS, COOPERATING TIRE MOLD PARTS CARRIED BY THE PLATENS, A RUBBER AIR BAG HAVING A HIGH FREQUENCY ELECTRODE ASSOCIATED THEREWITH AND ADAPTED TO BE RECEIVED IN A TIRE CARCASS ADAPED TO BE POSITIONED IN THE MOLD, A TUBULAR POST EXTENDING CENTRALLY THROUGH ONE OF THE PLATENS, HOLLOW ARMS AT SPACE INTERVALS EXTENDING FROM THE POST TOWARDS THE AIR BAG AND TERMINATING IN UPWARDL,Y-DIRECTED CUPS, A VALVE STEM ASSOCIATED WITH THE AIR BAG IN ALIGNMENT WITH EACH ARM, EACH VALVE STEM BEING CONNECTED TO THE ELECTRODE, A HOLLOW L SECURED TO EACH VALVE STEM AND ADAPTED TO FIT IN SEALING RELATION INTO A CUP WHEN THE MOLD PARTS ARE CLOSED, MEANS FOR SUPPLYING FLUID INTO ONE ARM FOR PASSAGE TO THE INTERIOR OF THE AIR BAG, MEANS FOR
Claim 2
Dependent Claim
136 words
APPARATUS FOR VULCANIZING PNEUMATIC TIRES INCLUDING UPPER AND LOWER PLATENS, COOPERATING TIRE MOLD PARTS CARRIED BY THE PLATENS, A RUBBER AIR BAG HAVING A HIGH FREQUENCY ELECTRODE ASSOCIATED THEREWITH AND ADAPTED TO BE RECEIVED IN A TIRE CARCASS ADAPED TO BE POSITIONED IN THE MOLD, A TUBULAR POST EXTENDING CENTRALLY THROUGH ONE OF THE PLATENS, HOLLOW ARMS AT SPACE INTERVALS EXTENDING FROM THE POST TOWARDS THE AIR BAG AND TERMINATING IN UPWARDL,Y-DIRECTED CUPS, A VALVE STEM ASSOCIATED WITH THE AIR BAG IN ALIGNMENT WITH EACH ARM, EACH VALVE STEM BEING CONNECTED TO THE ELECTRODE, A HOLLOW L SECURED TO EACH VALVE STEM AND ADAPTED TO FIT IN SEALING RELATION INTO A CUP WHEN THE MOLD PARTS ARE CLOSED, MEANS FOR SUPPLYING FLUID INTO ONE ARM FOR PASSAGE TO THE INTERIOR OF THE AIR BAG, MEANS FOR
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |