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 Apparatus for mixing plastics

Details
Inventors: Hartwig, Peter R.;
Assignee: Schloemann-Siemag Aktiengesellschaft (Dusseldorf, DT)
Primary Examiner: Tollberg; Stanley H.
Assistant Examiner: Silverberg; Fred A.
Attorney, Agent or Firm: Blodgett; Norman S., Blodgett; Gerry A.

Apparatus for forming mixture of plastic components having a mixing head to which is attached a storage container for each component and which is equipped with a supply line, a return line, and a displaceable control member, which in one position has two injection openings which are connected to the mixing head by supply lines and in another position has two grooves for connecting the supply lines to the return lines.

DETAILED DESCRIPTION In general, the present invention consists of providing the mixing head with two plates mounted at a distance from each other and attached to the supply and return line.
Between the plates is guided a control member in the mixing chamber so as to be displaceable and also formed in a plate shape.
In this design, a play-free tightness of the control member is achieved without a special fitting being necessary.
There are only flat plates to work on for making it tight.
The individual parts of the mixing head may be exchanged in every way without any additional work.



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