US3982483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture reduction press
Assignee: CORRAL IND Inc
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Filing: 1975-04-25
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Granted: 1976-09-28
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Expires: 1995-04-25
Abstract
Abstract A power operated machine or press which utilizes the principle of the "Archimedian-Screw," in association with screening means and other pressure exerting means to partially separate the solid and liquid elements of compressible animal or vegetable tissue and to control the moisture content of the resultant product.
Inventors
- 👤 Thomas C. Bird
- 👤 Walter J. Paetzold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:35
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/12; B30B9/121; B30B9/18; B30B9/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
358 words
A press for extracting liquid from plastic material comprising: a frame, a shaft at least a part of the periphery being in the form of a truncated cone rotatably mounted on said frame and having a worm section of positive pitch formed along at least a part of its outer periphery, the truncated cone of said shaft tapering from its apex near the upstream end of said shaft toward the downstream end thereof, a first cylinder mounted on said frame and surrounding the worm section of said shaft, said first cylinder being closed at its upstream end and open at its downstream end, the upstream end of said first cylinder being provided with an opening in its periphery for receiving plastic material, the perforated downstream portion of the periphery of said first cylinder is formed by spaced bars arranged longitudinally of said shaft around at least a part thereof at least a part of the downstream portion of the periphery of said first cylinder being perforated for passing liquid extruded from the plastic material, a ring mounted on said frame for axial movement to and from the downstream end of said first cylinder for controlling said opening of said first cylinder, pressure means for exerting predetermined pressure on said ring for biasing said ring toward the periphery of said partial opening, said pressure means comprising an inflatable means adaptable for receiving fluid under pressure of predetermined values, a second perforated cylinder mounted on said frame in axial alignment with the downstream end of said shaft and protruding through an aperture in said ring into abutting aligned contact with the periphery of the cone of said shaft whereby the plastic material extruded by said worm section of said shaft moves over the outer periphery of said second cylinder, the perforations of said second cylinder are formed by spaced bars arranged longitudinally of said shaft around at least a part thereof said second cylinder passing therethrough liquid pressed from said extruded material by said ring, and detachably mounted wear shoes mounted on the downstream side of the last flight of said worm section at the downstream end of said shaft.
Claim 2
Dependent Claim
358 words
A press for extracting liquid from plastic material comprising: a frame, a shaft at least a part of the periphery being in the form of a truncated cone rotatably mounted on said frame and having a worm section of positive pitch formed along at least a part of its outer periphery, the truncated cone of said shaft tapering from its apex near the upstream end of said shaft toward the downstream end thereof, a first cylinder mounted on said frame and surrounding the worm section of said shaft, said first cylinder being closed at its upstream end and open at its downstream end, the upstream end of said first cylinder being provided with an opening in its periphery for receiving plastic material, the perforated downstream portion of the periphery of said first cylinder is formed by spaced bars arranged longitudinally of said shaft around at least a part thereof at least a part of the downstream portion of the periphery of said first cylinder being perforated for passing liquid extruded from the plastic material, a ring mounted on said frame for axial movement to and from the downstream end of said first cylinder for controlling said opening of said first cylinder, pressure means for exerting predetermined pressure on said ring for biasing said ring toward the periphery of said partial opening, said pressure means comprising an inflatable means adaptable for receiving fluid under pressure of predetermined values, a second perforated cylinder mounted on said frame in axial alignment with the downstream end of said shaft and protruding through an aperture in said ring into abutting aligned contact with the periphery of the cone of said shaft whereby the plastic material extruded by said worm section of said shaft moves over the outer periphery of said second cylinder, the perforations of said second cylinder are formed by spaced bars arranged longitudinally of said shaft around at least a part thereof said second cylinder passing therethrough liquid pressed from said extruded material by said ring, and detachably mounted wear shoes mounted on the downstream side of the last flight of said worm section at the downstream end of said shaft.
Claim 3
Dependent Claim
25 words
The press set forth in claim 1 wherein: said inflatable means comprises a flexible rubber ring having an inlet valve regulated by a pressure gauge.
Claim 4
Dependent Claim
28 words
The press set forth in claim 1 wherein: said wear shoes are spacer mounted on the last flight of said worm section and flush with its outer surface.
References Cited (Backward Citations)
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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) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |