Cosmetic extrusion case

Details Cosmetic extrusion case Cosmetic extrusion case

1995-08-16

1997-08-05

Fidei, David T.

Special receptacle or package

For lipstick or refill cartridge

401 71, 401 78, 401 69, B65D 8572

Patent

active

056533381

ABSTRACT:
A cosmetic extrusion case includes a chuck holding a cosmetic, an intermediate cylinder into which the chuck is inserted, a base cylinder into which the intermediate cylinder is inserted. By forming helical grooves in the inner surfaces of the intermediate cylinder and the base cylinder, respectively, the case has a dual structural extruding mechanism. The helical groove of the intermediate cylinder extends to the open end of the intermediate cylinder to allow a projection of the chuck to easily engage with the helical groove from the open end, thereby smoothly inserting the chuck into the intermediate cylinder. The intermediate cylinder has a thread protrusion at the open end side thereof, the inner diameter Da of which is smaller than the inner diameter D of the crest of the helical groove thereof, and the chuck has an engagement member disposed around a shaft portion thereof, the outer diameter Ds of which is larger than Da and smaller than D, thereby facilitating the insertion of the chuck into the intermediate cylinder and stably holding the chuck fully extruded without sway.

REFERENCES:
patent: 2395710 (1946-02-01), Anderson
patent: 2506984 (1950-05-01), Anderson
patent: 3230960 (1966-01-01), Moore et al.
patent: 3393036 (1968-07-01), Fuglsang-Madsen
patent: 3511575 (1970-05-01), Berins
patent: 4180163 (1979-12-01), Grioni
patent: 4770556 (1988-09-01), Ackermann et al.
patent: 4813801 (1989-03-01), Cardia
patent: 4961663 (1990-10-01), Iwamoto et al.
patent: 5172993 (1992-12-01), Ackermann et al.
patent: 5348410 (1994-09-01), Shozi et al.

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