Patent ID: 11873142
Assignee: S. C. JOHNSON & SON, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. A container system comprising:
a plurality of containers each having a different volume, each container including a plurality of sidewalls and a rim extending from the sidewalls at a top of the container, the rim of each container including a first sealing part and a second sealing part, with the first sealing part and the second sealing part being located on surfaces of the rim that face the inside of the container, with a plurality of protuberances being formed in the rims, the protuberances being discontinuous with each other such that each protuberance is spaced from two adjacent protuberances and each protuberance is visually distinct from other protuberances, wherein parts of the rims extend along arcs as viewed from above the containers; and
a plurality of lids for closing the tops of the containers, each lid having a rim that extends along sides of the lid, the rim of the lid including (i) a first sealing part that is configured to contact the first sealing part of the rim of the container to form a first sealing area, and (ii) a second sealing part that is configured to contact the second sealing part of the rim of the container to form a second sealing area, with a plurality of protuberances being formed in each of the lids, the protuberances being discontinuous with each other such that each protuberance is spaced from two adjacent protuberances and each protuberance is visually distinct from other protuberances, wherein parts of the rims of the lids extend along arcs as viewed from above the lids,
wherein the protuberances of each of the rims of the lids are positioned to align with the protuberances of at least one of the containers when the lids are sealed to corresponding containers, and
wherein, when the lids are sealed to the corresponding containers, each of the protuberances of the rims of the containers is spaced from correspondingly aligned protuberances of the lids.