TH11754A - Hollow cover - Google Patents

Abstract

The hollow lid (1,50) consists of a cup-shaped outer section (2,52) that forms an inner hollow cavity (3,53), an opening (4,54), and a tubular section (5,55) that extends from the opening into the inner cup-shaped outer section. All parts of the cup-shaped outer section (2,52) and the tubular section (5,55) are made as a single piece from plastic by blow molding. The lid may be used as a cap for a container or as a spout to release liquid detergent into the washing machine drum during the wash cycle.

Claims (9)

1. A hollow lid for a container consisting of an outer cup-shaped section with an inner hollow cavity and an opening, and a tubular section extending from the opening deep into the inner hollow of the outer cup-shaped section. All parts, including the cup-shaped and tubular sections, are manufactured as a single piece from plastic using the blow molding method. 2. The hollow cover under claim 1, where the inner end of the tubular section is arranged to have a cylindrical section protruding into the opening of the hollow cover. 3. The hollow cover under claim 2, the tubular section of which is provided with a tightening device which should be threaded. 4. A hollow cover according to claim 3, in which a tubular section extends a distance into the inner hollow of the hollow cover, such that the volume V1 formed between the plane P perpendicular to the central axis C of the opening through the inner end of the tubular section and the inner surface of the outer part of the cup is almost equal to the volume V2 formed by the plane P and the inner surface of the tubular section and the inner surface of the outer part of the cup. 5. The method of producing hollow lids for containers involves the process of blow molding the part using a blow molding or injection molding method with a suitable mold. This part consists of an outer cup-shaped section and a neck that corresponds to a tubular section and protrudes from the opening of the outer cup-shaped section in a direction away from the inner hollow. This neck is then flipped back into the inside of the outer cup-shaped section to form the tubular section. 6. The method under claim 5 in which the neck is flipped inward into the outer part of the cup shape after the blow molded part has been released from the mold. 7. The method under claim 7 in which the neck is flipped inward into the outer part of the cup shape at a temperature below the softening temperature of the plastic material used. 8. The use of a hollow cap as defined in Reputation 1 to release liquid detergent into the washing machine drum during the washing cycle. 9. The use of a hollow cap manufactured as defined in Claim 5 to release/fill liquid detergent into the washing machine drum during the washing cycle.