US3887313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizing device for open hollow bodies, especially toroidal raw pneumatic tires
Assignee: Continental AG
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Filing: 1973-10-25
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Granted: 1975-06-03
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Expires: 1993-10-25
Abstract
Abstract A vulcanizing device for open hollow bodies, especially toroidal raw pneumatic tires, which have the required heat conveyed thereto by a heated mold forming the outer contour of the tire to be vulcanized and also by a heat carrying medium which under vulcanizing pressure is conveyed through a minimum of nozzles into the hollow chamber of the hollow body to be vulcanized.
Inventors
- 👤 Roland Jaedicke
- 👤 Ulfert Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0662; B29D2030/0666; B29D2030/0667
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
209 words
A curing device for open hollow bodies, especially toroidal raw pneumatic tires, which includes in combination: a mold, mold receiving means for receiving a mold for a hollow body to be cured, hollow heat carrying means movable selectively into and out of a hollow body inserted into the interior of the mold in said mold receiving means and adapted in its Interior to receive and carry a heating substance, conveying means associated with said heat carrying means for conveying a heating substance into said heat carrying means when the latter is inserted into the hollow body to be cured, said conveying means including nozzle means forming the inner end of said conveying means, said nozzle means including housing means defining a chamber and provided with opening means communicating with the interior of said heat carrying means, tubular means having an inlet communicating with said chamber and having an outlet communicating with the interior of said heat carrying means, and a nozzle having an inlet communicating with said conveying means and having a mouth adjacent said inlet of said tubular means, whereby heating substance passing from said nozzle into said tubular means draws heating substance from said chamber into said tubular means while intermixing with said last mentioned heating substance.
Claim 2
Dependent Claim
209 words
A curing device for open hollow bodies, especially toroidal raw pneumatic tires, which includes in combination: a mold, mold receiving means for receiving a mold for a hollow body to be cured, hollow heat carrying means movable selectively into and out of a hollow body inserted into the interior of the mold in said mold receiving means and adapted in its Interior to receive and carry a heating substance, conveying means associated with said heat carrying means for conveying a heating substance into said heat carrying means when the latter is inserted into the hollow body to be cured, said conveying means including nozzle means forming the inner end of said conveying means, said nozzle means including housing means defining a chamber and provided with opening means communicating with the interior of said heat carrying means, tubular means having an inlet communicating with said chamber and having an outlet communicating with the interior of said heat carrying means, and a nozzle having an inlet communicating with said conveying means and having a mouth adjacent said inlet of said tubular means, whereby heating substance passing from said nozzle into said tubular means draws heating substance from said chamber into said tubular means while intermixing with said last mentioned heating substance.
Claim 3
Dependent Claim
209 words
A curing device for open hollow bodies, especially toroidal raw pneumatic tires, which includes in combination: a mold, mold receiving means for receiving a mold for a hollow body to be cured, hollow heat carrying means movable selectively into and out of a hollow body inserted into the interior of the mold in said mold receiving means and adapted in its Interior to receive and carry a heating substance, conveying means associated with said heat carrying means for conveying a heating substance into said heat carrying means when the latter is inserted into the hollow body to be cured, said conveying means including nozzle means forming the inner end of said conveying means, said nozzle means including housing means defining a chamber and provided with opening means communicating with the interior of said heat carrying means, tubular means having an inlet communicating with said chamber and having an outlet communicating with the interior of said heat carrying means, and a nozzle having an inlet communicating with said conveying means and having a mouth adjacent said inlet of said tubular means, whereby heating substance passing from said nozzle into said tubular means draws heating substance from said chamber into said tubular means while intermixing with said last mentioned heating substance.
Claim 4
Dependent Claim
209 words
A curing device for open hollow bodies, especially toroidal raw pneumatic tires, which includes in combination: a mold, mold receiving means for receiving a mold for a hollow body to be cured, hollow heat carrying means movable selectively into and out of a hollow body inserted into the interior of the mold in said mold receiving means and adapted in its Interior to receive and carry a heating substance, conveying means associated with said heat carrying means for conveying a heating substance into said heat carrying means when the latter is inserted into the hollow body to be cured, said conveying means including nozzle means forming the inner end of said conveying means, said nozzle means including housing means defining a chamber and provided with opening means communicating with the interior of said heat carrying means, tubular means having an inlet communicating with said chamber and having an outlet communicating with the interior of said heat carrying means, and a nozzle having an inlet communicating with said conveying means and having a mouth adjacent said inlet of said tubular means, whereby heating substance passing from said nozzle into said tubular means draws heating substance from said chamber into said tubular means while intermixing with said last mentioned heating substance.
Claim 5
Dependent Claim
54 words
A device in combination according to claim 1, in which a portion of said heat carrying means defines a hollow annular chamber within the region of said nozzle so distributed and oriented in said hollow chamber as to be operable when discharging a heating substance to impart thereupon a circulation within said hollow chamber.
Claim 6
Dependent Claim
36 words
A device in combination according to claim 2, in which said nozzle is so distributed and arranged in said annular chamber as to cause the heating substance to move along the wall of said hollow chamber.
Claim 7
Dependent Claim
25 words
A device in combination according to claim 2, in which said nozzle is tangentially arranged with regard to a circular line within said annular chamber.
Claim 8
Dependent Claim
33 words
A device in combination according to claim 4, in which said circular line is closer to the inner confinement contour of said annular chamber than to the outer confinement of said annular chamber.
Claim 9
Dependent Claim
36 words
A device in combination according to claim 4, which includes annular disc means arranged centrally within said device and in part defining said conveying means, said nozzle being arranged at the periphery of said disc means.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |