Patent ID: 9254063
Filing Date: 2016-02-09
CPC Classification: A47J,B65D

Claim Text:
1. A container comprising an outer member, an inner member, an insulating space and a vent assembly, said outer member being formed of a plastic material and having a sidewall, said inner member being formed of a plastic material and having a sidewall, said inner member being disposed within said outer member with said insulating space being located between said sidewalls of said outer and inner members, said vent assembly being located in said outer member in communication with said insulating space and comprising a gas permeable member operable to equalize the internal pressure within said insulating space and the ambient atmospheric pressure surrounding said outer member, whereupon higher internal pressure within said insulating space can vent to the ambient atmosphere through said gas permeable member upon the occurrence of excess pressure within said insulating space when said container is heated, while enabling ambient air to pass through said gas permeable member back into said insulating space when said container is cooled, said vent assembly being configured to allow the passage of gases into said insulating space at all times while preventing liquids from entering into said insulating space at all times, said insulating space being configured to have some vacuum therein and wherein said vent assembly additionally comprises a valve arranged to equalize the internal pressure within said insulating space and the ambient atmospheric pressure surrounding the outer member.