US 12,227,046 B1
Integrated lift axle suspension system and method of use
Ervin K. VanDenberg, Massillon, OH (US); Lyle Edward Turkson, Canton, OH (US); and David H. Croston, Navarre, OH (US)
Assigned to Transportation Technologies, Inc., Massillon, OH (US)
Filed by Transportation Technologies, Inc., Massillon, OH (US)
Filed on Mar. 15, 2024, as Appl. No. 18/606,775.
Int. Cl. B60G 11/27 (2006.01); B60G 3/14 (2006.01); B60G 11/28 (2006.01)
CPC B60G 11/27 (2013.01) [B60G 3/14 (2013.01); B60G 11/28 (2013.01); B60G 2200/446 (2013.01); B60G 2202/152 (2013.01); B60G 2204/126 (2013.01); B60G 2204/418 (2013.01); B60G 2204/4302 (2013.01); B60G 2300/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lift axle air suspension assembly for an auxiliary wheel on a trailer, the lift axle suspension assembly comprising:
a cross support member that is adapted to mount transversely on opposing rails of a trailer;
a first bracket integrated to the cross support member;
a first beam pivotably coupled to the first bracket, wherein the first beam pivots about a pivot axis located between a forward end and a rear end of the first beam;
a first load air bag located rearward of the pivot axis, and the first load air bag positioned between the first beam and the first bracket; and
a first lift air bag located forward of the pivot axis, and the first lift air bag positioned between the first beam and the first bracket.