Cap

Details Cap Cap

2007-12-18

2007-12-18

Stashick, Anthony D. (Department: 3781)

Bottles and jars

Closures

Cap type

C222S546000, C222S547000

Reexamination Certificate

active

10307318

ABSTRACT:
A cap10which has a female screw14in the inner peripheral surface and which is to be screwed on a port neck part13of a container main body11holding a predetermined liquid, wherein a plurality of ribs18radially extending astride from an inner surface of a top surface part16of the cap10to an inner surface of a peripheral wall part and integrally projecting inwards are formed on a peripheral edge part17of the inner surface of the top surface part16. A female screw14is a screw in the form of two threads composed of spiral mated ridges14a, 14bof two threads, for example. The liquid held in the container main body11is, for example, a chlorine-based bleach which contains a surface active agent and a sodium hypochlorite. The mated ridges14a, 14beach are 80 to 120 degrees in thread angle θ and 1 to 15% of a valley radius of the female screw14in thread height H.

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