The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 1997
Filed:
Aug. 16, 1995
Yoshikazu Tani, Tokyo, JP;
Takiwa Corporation, , JP;
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.