US Patent Issued to NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT on Feb. 10 for "Structure for assembling and disassembling dirt suction head to/from filter bag" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,692, issued on Feb. 10, was assigned to NINGBO DONGCHUAN SWIMMING POOL EQUIPMENT Co. LTD. (Ningbo, China).

"Structure for assembling and disassembling dirt suction head to/from filter bag" was invented by Huaizhong He (Ningbo, China) and Hu Zhang (Ningbo, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a structure for assembling and disassembling a dirt suction head to/from a filter bag, comprising a first connection piece and a second connection piece; one end of the second connection piece is detachably connected to a connection pipe of the dirt suction head, and the other end of the second connection piece is p...