Apparatus for mixing and ejecting foaming materials
First Claim
1. An apparatus for mixing and ejecting at least two interacting components to provide a foaming material, comprising an injection head and means for connecting said injection head to supply circuits of the individual components, said head comprising a chamber for mixing and ejecting said components, the chamber having a cleaning plunger axially reciprocable therein, said plunger interconnected with a piston positioned within a double acting cylinder, said cylinder interconnected through a first sliding valve and a one-way valve to a first pressure fluid supply conduit, a branched-off conduit connected between said one-way valve and first sliding valve, a pressure multiplier cylinder in said branched-off conduit, the control side of which is in turn connected to the pressure fluid supply through a second sliding valve, and control means for controlling said first and second sliding valves.
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Accused Products
Abstract
An apparatus for mixing and ejecting at least two interacting components to provide a foaming material. The apparatus comprises an injection head connected to supply circuits of the individual components, which head includes a mixing and ejecting chamber; the chamber has a cleaning plunger axially reciprocable therein and operated by a double acting cylinder connectable through a first sliding valve to a first pressure fluid supply conduit comprising a one-way valve, and respectively to a branched-off conduit connected to a pressure multiplier cylinder. The control side of multiplier cylinder is in turn connected to the pressure fluid supply through a second sliding valve operatively connected to the first sliding valve.
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Citations
6 Claims
- 1. An apparatus for mixing and ejecting at least two interacting components to provide a foaming material, comprising an injection head and means for connecting said injection head to supply circuits of the individual components, said head comprising a chamber for mixing and ejecting said components, the chamber having a cleaning plunger axially reciprocable therein, said plunger interconnected with a piston positioned within a double acting cylinder, said cylinder interconnected through a first sliding valve and a one-way valve to a first pressure fluid supply conduit, a branched-off conduit connected between said one-way valve and first sliding valve, a pressure multiplier cylinder in said branched-off conduit, the control side of which is in turn connected to the pressure fluid supply through a second sliding valve, and control means for controlling said first and second sliding valves.
Specification