Patent attributes
A flat mounting plate frictionally engages a protective facemask body inner surface, surrounds a first opening, at least partially, and defines a second opening that is co-extensive with the first opening, at least partially. A flat retaining plate frictionally engages the protective facemask body outer surface, surrounds the first opening, at least partially, and defines a third opening that is co-extensive with the first opening, at least partially. A tubular spacer is positioned between the flat mounting plate and the flat retaining plate inserted into the first opening to define a passageway connecting the second opening to the third opening for nourishment to flow therethrough. A gasket is positioned between the flat mounting plate and the flat retaining plate to seal the passageway. The flat mounting plate and the flat retaining plate define jaws for gripping the protective facemask body to hold the port assembly in place.
