EP 0358837 A1 19900321 - Dehydrating screw press with two or more helical elements with intermeshing profiles.
Title (en)
Dehydrating screw press with two or more helical elements with intermeshing profiles.
Title (de)
Entwässerungsschneckenpresse mit zwei oder mehr schraubenförmigen Elementen mit ineinandergreifenden Profilen.
Title (fr)
Presse de déshydratation à vis à deux ou plusieurs éléments hélicoidaux à profils s'emboîtant.
Publication
Application
Priority
EP 88830372 A 19880914
Abstract (en)
A dehydrating screw press by which an advancing product to be deshydrated is pressed, by the rotating movement of one or more screw elements with a conical shaft (1) and a conical spiral (2) operating in a corresponding space up to the wall of a filtering cage (3). As the increasing diameter of the spiral (2) conforms to the like reduction of the shaft section (4), the use of the helical elements fitted side by side allows each spiral to operate with a profile extending up to the other helical element wall. Therefore, non-intermeshing zones are avoided during the dehydrating phase in the intermediate space. As the two pressing elements are rotated in opposite directions, rotation of the pressed material is avoided, thus advancing the product in an axial direction. The filtering cage used for a press with two helical elements shows a confirmity with two components (5 and 6) interconnected on lines (7 and 8) at the intermeshing area of the two spirals.
IPC 1-7
IPC 8 full level
B30B 9/16 (2006.01)
CPC (source: EP)
B30B 9/16 (2013.01)
Citation (search report)
- [X] GB 677794 A 19520820 - HANS ANDREAS HARTNER
- [X] US 2567219 A 19510911 - LESNIAK FRANK G
- [X] GB 1140237 A 19690115 - STORD BARTZ INDUSTRI AS
- [A] GB 904328 A 19620829 - STORD MARIN IND AS
- [A] DE 883338 C 19560308 - LAVORAZIONE MAT PLAST
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0358837 A1 19900321; EP 0358837 B1 19940316; EP 0358837 B2 20030702; AT E102868 T1 19940415; DE 3888533 D1 19940421; DE 3888533 T2 19940623; DE 3888533 T3 20040304; DE 3888533 T4 19950112; ES 2053812 T3 19940801; ES 2053812 T5 20040401
DOCDB simple family (application)
EP 88830372 A 19880914; AT 88830372 T 19880914; DE 3888533 A 19880914; DE 3888533 T 19880914; ES 88830372 T 19880914