Two-stage type of freely elongatable sucking pipe

Details Two-stage type of freely elongatable sucking pipe Two-stage type of freely elongatable sucking pipe

1985-05-28

1987-04-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fountains or drinking tubes and straws

Drinking

285260, 285302, A47G 2118

Patent

active

046571825

ABSTRACT:
A two-stage type of freely elongatable sucking pipe comprising a larger-diameter pipe (e.g. for use as a drinking straw) member and a smaller-diameter pipe member inserted in the larger-diameter pipe member wherein the larger-diameter pipe member has a smaller diameter at the tip thereof to be brought into close contact with the outside surface of the smaller-diameter pipe member and/or the smaller-diameter pipe member has an expanded tip kept in close contact with the inside surface of the larger-diameter pipe member, the larger-diameter pipe member being made of a propylene type of polymer having a melt flow index of 7 to 14 g/10 min and stiffness of 10000 to 13000 kg/cm.sup.2, and the smaller-diameter pipe member being made of polypropylene homopolymer having a melt flow index of 7 to 14 g/10 min and stiffness of at least 13500 kg/cm.sup.2.

REFERENCES:
patent: 2192037 (1940-02-01), Hamilton
patent: 2392479 (1946-01-01), Humbert
patent: 3346187 (1967-10-01), Mueller
patent: 3971578 (1976-07-01), Schemith
patent: 4152017 (1979-05-01), Abramson

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