Moisture reduction press

• US 3,982,483 A
• Filed: 04/25/1975
• Issued: 09/28/1976
• Est. Priority Date: 04/25/1975
• Status: Expired due to Term

• Current Assignee: Corral Industries Incorporated
• Original Assignee: Corral Industries Incorporated
• Inventors: Bird, Thomas C., Paetzold, Walter J.
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US05/571,569
• Time in Patent Office: 522 Days
• Field of Search: 100/145-150, 100/117
• US Class Current: 100/117
• CPC Class Codes: B30B 9/121 Screw constructions
• CPC Class Codes: B30B 9/18 with means for adjusting the outlet for the solid
• CPC Class Codes: B30B 9/26 Permeable casings or strainers

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.

Claims

1. 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.

2. 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.

3. 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.