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US 4,938,835 AGranted
Apparatus for applying liquid, pasty or plastic substances to a substrate
OwnerVolker Ludwiginventor
Life of this patent
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Abstract
In an apparatus for applying liquid, pasty or plastic substances, particularly thermoplastic substances, to a substrate with a device for melting the substances and a feed head for transferring the melted substances to the substrate via at least one nozzle orifice, the device for melting the substances comprises a melting container and a pressure container connected thereto. In order to facilitate melting, heat exchanger surfaces, particularly heat exchanger tubes are arranged in the melting container.
Claims18
Apparatus for applying liquid, pasty or plastic substances to a substrate, particularly thermoplastic substances, which comprises:
- a device for melting said substances;
- a perforated metal cylinder connected to said melting device, said cylinder having an interior and an inner surface;
- a feed head for transferring the melted substances to the substrate constructed as a beam arranged in the interior of the cylinder;
- at least one nozzle orifice of said feed head, wherein the inner surface of the cylinder moves past the nozzle orifice;
- and an air nozzle within the cylinder downstream of the nozzle orifice, said air nozzle forming a nozzle slit towards the metal cylinder defined by lips.
2 more elements
Dependencies are inferred from the claim text.