US Patent Issued to Aspen Custom Trailers on Jan. 20 for "Expandable trailer with variable-pitch wheel carriage" (Canadian Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,550, issued on Jan. 20, was assigned to Aspen Custom Trailers Inc. (Leduc, Canada).

"Expandable trailer with variable-pitch wheel carriage" was invented by Peter Hans Barzilay (Leduc, Canada), John Kenneth Loyek (Leduc, Canada) and Patrick Scheller (Leduc, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An expandable multiple-axle trailer has a trailer wheel carriage with left and right sub-carriages having corresponding forward-extending sub-carriage extensions, the front ends of which define sub-carriage extension tongues laterally movable within slots in a first transverse trailer structure member while being constrained against longitudina...