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US 4,060,579 AGranted
Method for the continuous forming of foam blocks
AssigneeMaschinenfabrik Hennecke GmbH
InventorsWilli Schmitzer, Heinz Kisteneich, Ferdinand Proksa
Life of this patent
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Abstract
Foam blocks are continuously produced on a conveyor belt having lateral boundaries, the application zone for the mixture being adjustable in its inclination, and a feed means for the cover sheet of the conveyor belt being provided before the point at which the mixture is applied.
Claims8
A method of continuously producing foam blocks comprising:
- a. providing an elongated conveying surface divided into a first zone and a second zone
- i. said first zone being inclined at a downward angle to the horizontal in the direction of the work,
- ii. said second zone being substantially horizontal and forming a less than 180.degree. angle with said first zone as measured between the top surfaces, and
- iii. at least said second zone comprises an endless drivable conveyor belt,
- b. positively feeding a continuous cover sheet to the surface of said first zone,
- c. continuously depositing a foamable reaction mixture on top of said cover sheet in said first zone,
- d. maintaining freshly deposited mixture in said first zone for a short enough time that it does not begin to foam substantially, and
- e. allowing the mixture to foam in said second zone.
5 more elements
Dependencies are inferred from the claim text.