ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,963, issued on Dec. 9, was assigned to Ningbo Lewis Sports Goods Co. Ltd. (Cixi, China).
"Kind of brake upper pump with adjustable force arm" was invented by Yonggang Chen (Cixi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A brake upper pump with an adjustable force arm, including a brake pump body, a brake handle, and a piston rod components extending into the brake pump body; The position where the user holds the brake lever is the grip input position, the connection between the brake pump body and the brake lever is the rotation fulcrum position, the connection between the piston rod assembly and the brake lever is the thrust output posit...