US3911705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion apparatus
Assignee: WANSKUCK Co
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Filing: 1974-04-01
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Granted: 1975-10-14
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Expires: 1994-04-01
Abstract
Abstract An extrusion apparatus comprising at least a first and second member forming a passageway, a die being held in position by an abutment closing the end of the passageway and a band means located against one wall of the passageway so as to form an antifriction device.
Inventors
- 👤 William G Voorhes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:04
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/08; B21C23/005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
125 words
Extrusion apparatus comprising a passageway formed between two opposing walls in a first member, the bottom of the passageway being closed by a surface of a second member, said surface having lubricant thereon, the top of the passageway being closed by a third member, an abutment extending into the passageway and closing an end thereof, a die insert positioned against the abutment, a continuous band being guided for movement on the lubricated surface of the second member about the apparatus, the surface wall area of the first member being greater than the surface area of the band lying against the third member, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 2
Dependent Claim
125 words
Extrusion apparatus comprising a passageway formed between two opposing walls in a first member, the bottom of the passageway being closed by a surface of a second member, said surface having lubricant thereon, the top of the passageway being closed by a third member, an abutment extending into the passageway and closing an end thereof, a die insert positioned against the abutment, a continuous band being guided for movement on the lubricated surface of the second member about the apparatus, the surface wall area of the first member being greater than the surface area of the band lying against the third member, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 3
Dependent Claim
98 words
Extrusion apparatus comprising first and second members forming a passageway therein, said first member providing means forming a groove, said second member closing the groove, by means defining a surface, lubricant on said surface, an abutment at one end of the passageway, a die insert held by the abutment, and a continuous band being guided by the first member about the apparatus and bearing on a lubricated surface of the second member facing the passageway, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 4
Dependent Claim
98 words
Extrusion apparatus comprising first and second members forming a passageway therein, said first member providing means forming a groove, said second member closing the groove, by means defining a surface, lubricant on said surface, an abutment at one end of the passageway, a die insert held by the abutment, and a continuous band being guided by the first member about the apparatus and bearing on a lubricated surface of the second member facing the passageway, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 5
Dependent Claim
27 words
Extrusion apparatus as in claim 2 wherein said first member is a wheel and the second member is a shoe facing the bottom wall of the groove.
Claim 6
Dependent Claim
19 words
Extrusion apparatus as in claim 2 wherein the arcuate surface of the shoe member is concave in cross section.
Claim 7
Dependent Claim
122 words
Extrusion apparatus comprising first and second members forming a passageway, said first member being a wheel with a groove therein, said groove having side and bottom walls, the second member having a surface closing the groove of the first member, an abutment extending into the passageway and closing an end thereof, a die insert positioned against the abutment and a continuous band being guided for movement on the lubricated surface of the second member about the apparatus, the surface wall area of the first member being greater than the surface area of the band lying against the third member, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 8
Dependent Claim
122 words
Extrusion apparatus comprising first and second members forming a passageway, said first member being a wheel with a groove therein, said groove having side and bottom walls, the second member having a surface closing the groove of the first member, an abutment extending into the passageway and closing an end thereof, a die insert positioned against the abutment and a continuous band being guided for movement on the lubricated surface of the second member about the apparatus, the surface wall area of the first member being greater than the surface area of the band lying against the third member, means for feeding material to be extruded to said passageway, said material bearing against said band and moving the same toward said abutment.
Claim 9
Dependent Claim
27 words
Extrusion apparatus as in claim 5 wherein said first member is a wheel and the second member is a shoe facing the bottom wall of the groove.
Claim 10
Dependent Claim
19 words
Extrusion apparatus as in claim 5 wherein the arcuate surface of the shoe member is concave in cross section.
Claim 11
Dependent Claim
67 words
A process of extruding material comprising feeding solid stock material into a passageway formed between a band and a groove in another member, moving the other member, providing die means closing one end of said passageway, providing means to support the band , moving the band at the input feed speed of the solid stock and providing continuous lubrication between the band and the support means therefor.
Claim 12
Dependent Claim
67 words
A process of extruding material comprising feeding solid stock material into a passageway formed between a band and a groove in another member, moving the other member, providing die means closing one end of said passageway, providing means to support the band , moving the band at the input feed speed of the solid stock and providing continuous lubrication between the band and the support means therefor.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |