US Patent Issued to Assa Abloy Entrance Systems on March 25 for "Offset roller carrier and bottom bracket assembly" (North Carolina, Kansas Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,801, issued on March 25, was assigned to Assa Abloy Entrance Systems AB (Landskrona, Sweden).

"Offset roller carrier and bottom bracket assembly" was invented by Stephen Anthony Roesner (Lawrence, Kan.) and Joshua Dombrosky (Advance, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a bottom bracket assembly for a sectional door. Roller wheels engage with tracks along the sides of the doorway to support the door and guide it to move up and down or open and close the doorway. A lift cable connected with lift engagements may be provided to provide an upward bias to the motion of the door to offset the weight of the door. The roller whe...