US Patent 11939755 Portable plumbing-free sink

The present disclosure provides a standalone portable sink assembly that is plumbing-free and suitable for both indoor and outdoor use, with a design that enables more convenient and ergonomic refreshing of the water containers. This is achieved by having a container which is divided into clean and used water container sections by a middle partition. The container is equipped with a pair of handles and detachably combines with a lid having a basin formed therein and extending toward the middle partition to provide a seal therewith and separate clean water section from the used water section.