continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6505/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :25/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "MIXING HEAD WITH CREEP BARRIER ON THE CLEANING PISTON"
(51) International classification :B29B 7/76 (71)Name of Applicant :
(31) Priority Document No :10 2006 009 117.5 1) MAFFEI KRAUSSTECHNOLOGIES GMBH
(32) Priority Date :25/02/2006 Address of Applicant :KRAUSS-MAFFEI STR. 2, 80997
(33) Name of priority country :Germany MUNCHEN GERMANY. Germany
(86) International Application No
:PCT/EP06/069622 (72)Name of Inventor :
Filing Date
:12/12/2006 1)ERNST BERCHTENBREITER
(87) International Publication No :WO 2007/098815
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
The present invention relates to a mixing head for the processing of a reactive mixture of material composed of at least two plastic
components that react with one another, including a mixing device (12) with a mixing chamber in which a cleaning piston (18"') has
been reversibly arranged so that it can be moved to and fro. In order to prevent creep of plastic material at the cleaning piston (18'"),
the cleaning piston, or a shaft connected to the cleaning piston, has a thickened region (22) surrounding its periphery, or a diametrical
enlargement, which acts as a creep barrier for the plastic components or the material mixture.
No. of Pages : 15 No. of Claims : 6
The Patent Office Journal 24/10/2008 25996