ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,909, issued on Jan. 27, was assigned to Allison Transmission Inc. (Indianapolis).
"Spindle seal and powertrain system" was invented by Douglas S. Burchett (Martinsville, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the ...