US3790327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing a thermoplastically deformable plastic foil
Assignee: Individual
•
Filing: 1972-01-24
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Granted: 1974-02-05
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Expires: 1992-01-24
Abstract
Abstract An apparatus for the production of a thermoplastically deformable plastic foil from a granulated or powdered material comprising a storage container, a block-shaped cylinder coupled to the container for receiving the material to be processed therefrom, a charging and compressing arrangement coupled between the cylinder and the storage container for conveying the material into the cylinder for compression and plastification therein, and a slot-shaped nozzle coupled to the cylinder or formed integrally therewith for passing the material therethrough and thereby forming the plastic foil. The invention discloses also a method for making the plastic foil.
Inventors
- 👤 W Haberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:59
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/285; B29C48/288; B29C48/36; B29C48/365; B29C48/37; B29C48/375; B29C48/388; B29C48/465; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29C48/475; Y; Y10; Y10S; Y10S425/00; Y10S425/03
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
184 words
An apparatus for the production of a thermoplastically deformable plastic foil from a granulated or powdered material comprising a storage container, a block-type cylinder coupled to said container for receiving the material to be processed therefrom, a charging and compressing arrangement coupled between said cylinder and said storage container for conveying said material into said cylinder for compression and plastification therein, and a slot-shaped nozzle device coupled to said cylinder for passing said material therethrough and thereby forming said plastic foil, wherein said cylinder comprises a plurality of disc-shaped members, predetermined ones of said members having a recess formed therein, other ones of said members having a closed or substantially closed construction profile, adjacent ones of said one member having recesses formed therein being separated from each other by one of said closed or substantially closed profiled members, said ones and said other ones of said members having a common entry opening for said material supplied from said charging device and a common exit opening coupled to said nozzle device and means are provided to secure said disc-shaped members together to form said cylinder.
Claim 2
Independent Claim
184 words
An apparatus for the production of a thermoplastically deformable plastic foil from a granulated or powdered material comprising a storage container, a block-type cylinder coupled to said container for receiving the material to be processed therefrom, a charging and compressing arrangement coupled between said cylinder and said storage container for conveying said material into said cylinder for compression and plastification therein, and a slot-shaped nozzle device coupled to said cylinder for passing said material therethrough and thereby forming said plastic foil, wherein said cylinder comprises a plurality of disc-shaped members, predetermined ones of said members having a recess formed therein, other ones of said members having a closed or substantially closed construction profile, adjacent ones of said one member having recesses formed therein being separated from each other by one of said closed or substantially closed profiled members, said ones and said other ones of said members having a common entry opening for said material supplied from said charging device and a common exit opening coupled to said nozzle device and means are provided to secure said disc-shaped members together to form said cylinder.
Claim 3
Independent Claim
184 words
An apparatus for the production of a thermoplastically deformable plastic foil from a granulated or powdered material comprising a storage container, a block-type cylinder coupled to said container for receiving the material to be processed therefrom, a charging and compressing arrangement coupled between said cylinder and said storage container for conveying said material into said cylinder for compression and plastification therein, and a slot-shaped nozzle device coupled to said cylinder for passing said material therethrough and thereby forming said plastic foil, wherein said cylinder comprises a plurality of disc-shaped members, predetermined ones of said members having a recess formed therein, other ones of said members having a closed or substantially closed construction profile, adjacent ones of said one member having recesses formed therein being separated from each other by one of said closed or substantially closed profiled members, said ones and said other ones of said members having a common entry opening for said material supplied from said charging device and a common exit opening coupled to said nozzle device and means are provided to secure said disc-shaped members together to form said cylinder.
Claim 4
Independent Claim
184 words
An apparatus for the production of a thermoplastically deformable plastic foil from a granulated or powdered material comprising a storage container, a block-type cylinder coupled to said container for receiving the material to be processed therefrom, a charging and compressing arrangement coupled between said cylinder and said storage container for conveying said material into said cylinder for compression and plastification therein, and a slot-shaped nozzle device coupled to said cylinder for passing said material therethrough and thereby forming said plastic foil, wherein said cylinder comprises a plurality of disc-shaped members, predetermined ones of said members having a recess formed therein, other ones of said members having a closed or substantially closed construction profile, adjacent ones of said one member having recesses formed therein being separated from each other by one of said closed or substantially closed profiled members, said ones and said other ones of said members having a common entry opening for said material supplied from said charging device and a common exit opening coupled to said nozzle device and means are provided to secure said disc-shaped members together to form said cylinder.
Claim 5
Dependent Claim
28 words
The apparatus as claimed in claim 1, wherein said cylinder, said storage container, said charging and compressing means and said nozzle device are provided with a heating arrangement.
Claim 6
Dependent Claim
41 words
The apparatus as claimed in claim 1, wherein said other members comprise recesses therein communicating with said one cylinder member, said recesses having edge portions which are chamfered or rounded for improving the transition of said material between adjacent cylindrical spaces.
Claim 7
Dependent Claim
17 words
The apparatus as claimed in claim 1, wherein said nozzle device is adjustable in width and thickness.
Claim 8
Dependent Claim
19 words
The apparatus as claimed in claim 1, wherein said exit opening said said disc-shaped members forms said nozzle device.
Claim 9
Dependent Claim
25 words
The apparatus as claimed in claim 1, wherein said nozzle device comprises an exchangeable insert means having a predetermined width and thickness of said slot.
Claim 10
Dependent Claim
55 words
The apparatus as claimed in claim 1, wherein said one and said other member comprise said exit openings, means to provide a slot in said one and said oTher disc-shaped members for receiving a tool therein the adjusting the width of said exit opening, thereby varying said exit opening serving as an adjustable nozzle device.
Claim 11
Dependent Claim
17 words
The apparatus as claimed in claim 1, wherein said charging and compressing means comprises a piston means.
Claim 12
Dependent Claim
20 words
The apparatus as claimed in claim 1, wherein said charging and compressing means comprises a pair of delivery roller means.
Claim 13
Dependent Claim
14 words
The apparatus as claimed in claim 1, wherein said charging means comprises an extruder.
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |