Patent attributes
An insulated cooler having an insulated bottom, an insulated peripheral wall, and an insulated lid is disclosed. The peripheral wall may extend up from the bottom to define an interior space of the cooler. The lid, pivotally attached to the peripheral wall, may be pivotable to a closed position engaging the peripheral wall to close the interior space. A vent passage may extend through the peripheral wall or the lid, communicating the interior space with an exterior of the cooler to prevent formation of a vacuum in the cooler. A retaining frame may be attached to the peripheral wall or the lid at a location on the peripheral wall or the lid corresponding to a location of the vent passage. An air-impermeable, water-impermeable material layer may block the vent passage. The material layer may be positioned between the retaining frame and the interior space of the cooler.
