Patent ID: 6883678

Claim:
A food container sealing structure comprising a container body adapted for holding food, said container body having a coupling flange extended around a rim thereof, and a cover adapted for sealing said container body, said cover having a coupling flange extended around a rim thereof and adapted for fastening to the coupling flange of said container body, wherein the coupling flange of said container body comprises a first horizontal section and a first vertical section having a first right angle section formed therebetween, a first endless concave portion formed in the horizontal section of the coupling flange of said container body at an upper side and extended around said container body, said first endless concave portion being respectively bounded by a pair of first horizontally directed planar portions, and a second endless concave portion formed in the first vertical section of the coupling flange of said container body at an inner side and extended around said container body, said second endless concave portion being respectively bounded by a pair of first vertically directed planar portions; the coupling flange of said cover comprises a second horizontal section and a second vertical section having a second right angle section formed therebetween and respectively being in contiguous contact with the first horizontal section and first vertical section of the coupling flange of said container body, said second horizontal section of the coupling flange of said cover having a first endless convex portion formed at a bottom side thereof and extended around said cover and being complementary to the first endless concave portion of said container body, said first endless convex portion being respectively bounded by a pair of second horizontally directed planar portions, and said second vertical section of the coupling flange of said cover having a second endless convex portion formed at an outer side thereof and extending around said cover and being complementary to the second endless concave portion of said container body, said second endless convex portion being respectively bounded by a pair of second vertically directed planar portions, wherein each of said pair of second horizontally directed planar portions, said first endless convex portion, said pair of second vertically directed planar portions, said first right angle section and said second endless convex portion are respectively in contiguous contact with each of said pair of first horizontally directed planar portions, said first endless concave portion, said pair of first vertically directed planar portions, said second right angle section and said second endless concave portion to form a seal between said cover and said container body.