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1. CA3041092 - HIGH THERMAL TRANSFER HOLLOW CORE EXTRUSION SCREW ASSEMBLY

Office Canada
Application Number 3041092
Application Date
Publication Number 3041092
Publication Date 23.08.2018
Publication Kind A1
IPC
A23K 40/25
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
KFEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF
40Shaping or working-up of animal feeding-stuffs
25by extrusion
A23P 30/20
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
30Shaping or working of foodstuffs characterised by the process or apparatus
20Extruding
CPC
A23N 17/005
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
NMACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
17Apparatus specially adapted for preparing animal feeding-stuffs
005for shaping by moulding, extrusion, pressing, e.g. pellet-mills
A23P 30/20
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
30Shaping or working of foodstuffs characterised by the process or apparatus
20Extruding
B01F 7/00691
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00658Configuration of the rotating axis
00683Construction of the axis
00691The axis being composed of interconnected parts
B01F 7/082
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
081with at least two helices in the same receptacle
082the helices being closely surrounded by a casing
B01F 7/085
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
081with at least two helices in the same receptacle
085the helices intermeshing to knead the mixture
B01F 7/088
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
088the stirrers being composed of two helices with opposite pitch on the same shaft; the stirrers being composed of two helices on the same axis, driven in opposite directions or at different speeds
Applicants WENGER MANUFACTURING INC.
Title
(EN) HIGH THERMAL TRANSFER HOLLOW CORE EXTRUSION SCREW ASSEMBLY
(FR) ENSEMBLE DE VIS D'EXTRUSION A CORPS CREUX A TRANSFERT THERMIQUE ELEVE
Abstract
(EN)
High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical flighting (56, 132, 134, 194) along the lengths thereof. The flighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow flighting (132, 134, 194). The flighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.