ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,648, issued on Sept. 9, was assigned to Amesbury Group Inc. (Edina, Minn.).
"Window balance shoes for a pivotable window" was invented by Wilbur J. Kellum (Garretson, S.D.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A balance shoe for a block and tackle window balance system includes an enlarged head portion housing a locking system configured to receive at least a portion of a pivot bar and releasably engage a jamb track. An elongate tail portion configured to couple at least partially within a U-shaped channel of the window balance system. A front face, the front face of the elongate tail portion being adjacent to a base wall of the U-shaped c...