EP0070567A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A device for manufacturing multicoloured marble soaps from a base paste and one or more liquid pigments
Assignee: Costruzioni Meccaniche G Mazzoni SpA
•
Filing: 1982-07-20
•
Granted: —
•
Expires: 2002-07-20
Abstract
Abstract Pressurized coloured liquids are inserted in the base mass, immediately upstream or in correspondance with the last homogenizing means (7); then a rotor (5) arranged between the last perforated refining means (7) and the extrusion hole (8) provides for a partial mixing of the paste. The speed of rotation of the rotor (5) is adjustable from outside of the extrusion head, and independent of the speed of the extrusion screw.
Inventors
- 👤 Guido Mazzoni
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:02
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/08; B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/16; B29C48/17; B29C48/175
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A device for producing a multicoloured marble soap, comprising an extrusion head (14), upstream of the inlet end of which refining means (7, 13a) are provided, while at the outlet end thereof a die (8) and a multi-injection device for one or more coloured liquids are provided, characterized in that a rotor (5) is provided between the last refining means (7, 31a) and the die (8), said rotor (5) substantially occupying the entire section of the extrusion head (4),where this rotor is placed.
Claim 2
Independent Claim
83 words
A device for producing a multicoloured marble soap, comprising an extrusion head (14), upstream of the inlet end of which refining means (7, 13a) are provided, while at the outlet end thereof a die (8) and a multi-injection device for one or more coloured liquids are provided, characterized in that a rotor (5) is provided between the last refining means (7, 31a) and the die (8), said rotor (5) substantially occupying the entire section of the extrusion head (4),where this rotor is placed.
Claim 3
Dependent Claim
28 words
A device according to claim 1, characterized in that the rotor (5) is operated from the outside independently of the screw, preferably by means of a speed variator.
Claim 4
Dependent Claim
91 words
A device according to Claim 1 or 2, wherein the coefficient K given by the formula is in the range of 0.11 - 0.60; wherein: Ar is the area in sq.mm. of the section of the compacting head at the location where the rotor is placed; Af is the area in sq.mm. of the die hole at the extruder outlet; n is the r.p.m. of the rotor; and α is a factor of experimental correlation, the value of which is in the range of 1.00 - 1.35, preferably 1.15 - 1.25.
Claim 5
Dependent Claim
20 words
A device according to Claim 3, characterized in that the value of said coefficient K is very close to 0.28.
Claim 6
Dependent Claim
27 words
5 A device according to Claim 1 or 2, characterized in that the colour injection occurs through spokes (3) provided in number of four, eight or more.
Claim 7
Independent Claim
25 words
A device according to any of the preceding claims, characterized in that the coloured liquid injection is effected immediately upstream of the last refining means.
Claim 8
Independent Claim
24 words
A device according to Claims 1 to 4, characterized in that the colour injection is effected by nozzles provided on the last homogenizing means.
Claim 9
Independent Claim
20 words
A device according to any Claims 4 to 7, characterized in that the position of the nozzles is radially displaceable.
Claim 10
Independent Claim
28 words
A device according to any of the preceding claims, characterized in that said rotori(5) is in the second half of the extrusion head which is of cylindrical configuration.
Claim 11
Independent Claim
23 words
A device according to any of the preceding claims, characterized in that the cylindrical portion of the head (4) is of varying length..
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.