ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,751,584, issued on Oct. 6, was assigned to VMW INTERNATIONAL PTY LTD (New South Wales, Australia).
"Container and pump assembly thereof" was invented by Wei Zhu (Nantong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pump assembly (10) is provided. In the pump assembly, an inner cylinder housing (32) defines a cylindrical chamber (S1), and an annular space (S2) is defined between an outer cylinder housing (33) and the inner cylinder housing (32). An annular chamber (S3) is defined between an outer cylinder wall (13) and an inner cylinder wall (12) of a built-in member (1). A connecting part bottom wall (22) is arranged in the cylindrical chamber...