Plastic cap featuring excellent sealing and venting

Details Plastic cap featuring excellent sealing and venting Plastic cap featuring excellent sealing and venting

2005-12-15

2009-08-18

Stashick, Anthony D (Department: 3781)

Bottles and jars

Closures

Cap type

Reexamination Certificate

active

07575121

ABSTRACT:
A plastic cap comprising a top panel and a skirt hanging down from the peripheral edge of the top panel, the inner surface of the top panel forming an inner ring that forms a seal upon coming into intimate contact with the inner surface of the wall of the mouth of a container, and the inner surface of skirt forming a screw thread that comes into engagement with a screw thread formed on the outer surface of the wall of the mouth of the container, wherein a slender recessed portion is formed in a number of at least one in the inner surface of said inner ring extending upward from an end thereof. The cap features both excellent sealing and excellent venting.

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