Title:
RESIN COVER HAVING STRUCTURAL SCREW STRUCTURE
Document Type and Number:
Japanese Patent JPS62271849
Kind Code:
A
Abstract:
A plastic closure (10) for use on a container having an externally threaded neck is disclosed wherein the skirt portion (16) of the closure cap (2) includes an internal structural thread formation. The structural thread formation (30) comprises a helical thread ramp portion (32) which is configured for load-bearing engagement with the thread of the associated container, and further includes means (34) for reinforcing the thread ramp portion (32), in the form of a plurality of spaced-apart reinforcing gussets (34). The provision of the structural thread formation (30) desirably facilitates high-speed molding of the closure (10), and desirably acts to reduce the quantity of plastic material required for molding the closure.
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| WO/2017/108697 | CLOSURE |
Inventors:
SHIERUDON ERU WAIRUDE
HIYUU BUI MOOTON JIYUNIA
HIYUU BUI MOOTON JIYUNIA
Application Number:
JP6772587A
Publication Date:
November 26, 1987
Filing Date:
March 20, 1987
Export Citation:
Assignee:
HC IND
International Classes:
B65D41/04; B65D41/34; B65D51/16; (IPC1-7): B65D41/04
Domestic Patent References:
| JPS5548055A | 1980-04-05 |
Foreign References:
| US3297185A | 1967-01-10 |
Attorney, Agent or Firm:
Asamura Akira