US Patent Issued to TENNANT on Oct. 27 for "Torque assisted surface maintenance machine" (Minnesota Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,084, issued on Oct. 27, was assigned to TENNANT COMPANY (Eden Prairie, Minn.).

"Torque assisted surface maintenance machine" was invented by Mark Pfingsten (Minneapolis), Andrew Verhasselt (Minneapolis) and Matthew Lotts (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface maintenance machine includes a maintenance head assembly comprising one or more surface maintenance tools for performing a surface maintenance operation. The machine also includes wheels and an operator grab handle permitting the operator to apply a force to urge the machine to change orientation. The machine also includes a first and second motor controlled by a ...