US 11,897,307 B1
Trailer suspension
Nicholas Brett Frey, La Crescenta, CA (US); Amit Nechushtan, Los Angeles, CA (US); Matthew Phillip Amano, Ranchos Palos Verdes, CA (US); and Bryce Makoto Hirai, Tustin, CA (US)
Assigned to Flyer Next, LLC, Los Angeles, CA (US)
Filed by Flyer Next, LLC, Los Angeles, CA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/474,999.
Int. Cl. B60G 9/00 (2006.01); B60G 11/27 (2006.01); B60G 11/30 (2006.01)
CPC B60G 9/003 (2013.01) [B60G 11/27 (2013.01); B60G 11/30 (2013.01); B60G 2202/15 (2013.01); B60G 2300/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A suspension system for a trailer comprising:
a first bracket assembly mounted to a frame of the trailer toward a trailer tail;
an air spring, one end of which is hingedly connected to the first bracket assembly;
a second bracket assembly mounted to the trailer frame, wherein another end of the air spring is hingedly connected to the second bracket assembly, and wherein the second bracket assembly is spaced apart from the first bracket assembly;
a third bracket assembly mounted to the trailer frame toward a hitch coupler, wherein the third bracket assembly is spaced apart from the second bracket assembly; and
a torsion axle extending between a set of trailer wheels, wherein the torsion axle extends through an opening defined on the third bracket assembly,
wherein the air spring is configured to be controlled such that a pressure inside the air spring is adjustable, and
wherein the torsion axle is configured to absorb a predetermined load weight applied to the trailer, and the air spring is configured to absorb a load weight higher than the predetermined load weight.