Patent US3880558A successfully refreshed from Google Patents.
US3880558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing in a continuous manner reinforced profile belts from extruded material
Assignee: Breco Kunststoffverarbeitungs GmbH and Co KG
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Filing: 1972-05-15
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Granted: 1975-04-29
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Expires: 1992-05-15
Abstract
Abstract A method of and device for producing reinforced profile belts, especially transmission belts, of extrudable material in a continuous manner, according to which successive portions of an endless belt are passed over a peripheral but different section of constant magnitude of a rotating wheel, preferably a wheel with peripheral teeth, so as together with said wheel to form a closed arc-shaped mold chamber sealed toward the outside while reinforcing strength members and extruded material from which the respective belt is to be made are continuously fed into the mold chamber.
Inventors
- 👤 Rudolf Breher
- 👤 Herbert Kohlmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:18
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/222; B29C43/28; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/13; B29C48/25; B29C48/30; B29C48/35; B29D; B29D29/00; B29D29/08; B29D29/085; B29C43/32; B29C43/44; B29C43/48; B29C2043/486; B29C48/05; B29L; B29L2031/00; B29L2031/709; B29L2031/7094
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
182 words
A device for making reinforced belts of extrudable material in a continuous manner, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed mold therewith, nozzle means located between said forming wheel and said band at the start of said mold, said nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying extruded material under pressure into said mold, said nozzle means also including passage means for sealingly passing reinforcing strength members therethrough into said mold, driving means for driving said band and said forming wheel, said nozzle means having first passage means for conveying reinforcing strength members together, with extruded material therearound into said mold and ahead of first passage means also having second passage means for conveying extruded material only into said mold.
Claim 2
Independent Claim
182 words
A device for making reinforced belts of extrudable material in a continuous manner, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed mold therewith, nozzle means located between said forming wheel and said band at the start of said mold, said nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying extruded material under pressure into said mold, said nozzle means also including passage means for sealingly passing reinforcing strength members therethrough into said mold, driving means for driving said band and said forming wheel, said nozzle means having first passage means for conveying reinforcing strength members together, with extruded material therearound into said mold and ahead of first passage means also having second passage means for conveying extruded material only into said mold.
Claim 3
Dependent Claim
27 words
A device according to claim 1, in which said nozzle means has separate passage means for respectively conveying extruded material and reinforcing strength members into said mold.
Claim 4
Dependent Claim
22 words
A device accoridng to claim 1, in which the outer periphery of said forming wheel is provided with evenly spaced mold chambers.
Claim 5
Dependent Claim
30 words
A device according to claIm 1, in which said band is provided with evenly spaced hollow protrusions extending radially with regard to said wheel within the region of said wheel.
Claim 6
Dependent Claim
48 words
A device according to claim 1, in which the outer periphery of said forming wheel is provided with evenly spaced mold chambers while said band is provided with evenly spaced hollow-form chamber portions which within the region of said mold bulge in a direction away from said wheel.
Claim 7
Dependent Claim
36 words
A device according to claim 1, in which said band and said wheel are provided with interengaging means for preventing said band and said wheel from sliding relative to each other in their direction of movement.
Claim 8
Independent Claim
205 words
A device for producing in a continuous process reinforced profile belts of a pressure injectable material with a pull-resistant reinforcement insert extending longitudinally therein, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed curved mold therewith, injection nozzle means located between said forming wheel and said band at the start of said mold, said injection nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying injectable material under pressure into said mold, said injection nozzle means also including passage means for introducing reinforcement inserts therethrough into said mold, said passage means being provided with sealing means for sealingly surrounding said reinforcement inserts while passing through said passage means, said nozzle means having first passage means for conveying reinforcement inserts together with injectable material therearound into said mold and ahead of said first passage means having also second passage means for conveying injectable material only into said mold.
Claim 9
Independent Claim
205 words
A device for producing in a continuous process reinforced profile belts of a pressure injectable material with a pull-resistant reinforcement insert extending longitudinally therein, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed curved mold therewith, injection nozzle means located between said forming wheel and said band at the start of said mold, said injection nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying injectable material under pressure into said mold, said injection nozzle means also including passage means for introducing reinforcement inserts therethrough into said mold, said passage means being provided with sealing means for sealingly surrounding said reinforcement inserts while passing through said passage means, said nozzle means having first passage means for conveying reinforcement inserts together with injectable material therearound into said mold and ahead of said first passage means having also second passage means for conveying injectable material only into said mold.
Claim 10
Independent Claim
192 words
A device for producing in a continuous process reinforced profile belts of a pressure injectable material with a pull-resistant reinforcement insert extending longitudinally therein, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed curved mold therewith, injection nozzle means located between said forming wheel and said band at the start of said mold, said injection nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying injectable material under pressure into said mold, said injection nozzle means also including passage means for introducing reinforcement inserts therethrough into said mold, said passage means being provided with sealing means for sealingly surrounding said reinforcement inserts while passing through said passage means, said band being provided with evenly spaced hollow forming chamber portions which within the region of said mold bulge in a direction away from said wheel.
Claim 11
Independent Claim
192 words
A device for producing in a continuous process reinforced profile belts of a pressure injectable material with a pull-resistant reinforcement insert extending longitudinally therein, which includes: a rotatable forming wheel and an endless band looped over and engaging on at least a peripheral portion of said rotatable forming wheel so that in response to a rotation of said forming wheel together with said band successive portions of said band sealingly pass around said forming wheel and while forming a closed curved mold therewith, injection nozzle means located between said forming wheel and said band at the start of said mold, said injection nozzle means sealingly engaging said band and said forming wheel for tightly closing said mold at its start and for conveying injectable material under pressure into said mold, said injection nozzle means also including passage means for introducing reinforcement inserts therethrough into said mold, said passage means being provided with sealing means for sealingly surrounding said reinforcement inserts while passing through said passage means, said band being provided with evenly spaced hollow forming chamber portions which within the region of said mold bulge in a direction away from said wheel.
Claim 12
Dependent Claim
36 words
A device according to claim 8, in which said band and said wheel are provided with interengaging means for preventing said band and said wheel from sliding relative to each other in their direction of movement.
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |