US 12,257,893 B2
Moveable tandem axle trailer
Aaron Jay Beiler, Gap, PA (US); William Fisher, Paradise, PA (US); Raymond Beiler, New Holland, PA (US); and Jeremiah Weaver, Narvon, PA (US)
Assigned to New Heights, LLC, Leola, PA (US)
Filed by New Heights, LLC, Leola, PA (US)
Filed on Apr. 20, 2023, as Appl. No. 18/303,639.
Application 18/303,639 is a continuation of application No. 17/024,823, filed on Sep. 18, 2020, granted, now 11,660,957.
Application 17/024,823 is a continuation in part of application No. 16/599,820, filed on Oct. 11, 2019, granted, now 11,597,457.
Claims priority of provisional application 62/744,901, filed on Oct. 12, 2018.
Prior Publication US 2023/0256814 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B60K 17/02 (2006.01); B60K 17/04 (2006.01); B62D 59/04 (2006.01); F16D 11/14 (2006.01); B60K 17/22 (2006.01); B60K 17/356 (2006.01); F16D 11/00 (2006.01)
CPC B60K 17/02 (2013.01) [B60K 17/043 (2013.01); B62D 59/04 (2013.01); F16D 11/14 (2013.01); B60K 17/22 (2013.01); B60K 17/356 (2013.01); F16D 2011/006 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A trailer for towing a power vehicle, comprising:
a towable frame forming an undercarriage chassis; and
a tandem wheel assembly positioned under the undercarriage chassis and having a first wheel assembly, the first wheel assembly includes a first wheel assembly frame having a body and a pair of low friction guides, each low friction guide of the first wheel assembly frame corresponds to receive a support rail, the first wheel assembly includes a first drive assembly, the first drive assembly includes a hydraulic motor assembly and a rotor assembly, and an engagement assembly for each first wheel of a pair of first wheels, a second wheel assembly, the second wheel assembly includes a second wheel assembly frame having a body and a pair of low friction guides, each low friction guide of the second wheel assembly frame corresponds to receive the support rail, the second wheel assembly includes a second wheel drive assembly, the second wheel drive assembly includes a hydraulic motor assembly, a rotor assembly, and an engagement assembly for each second wheel of a pair of second wheels, and an extension assembly moving the second wheel assembly along a longitudinal axis of the chassis between trailing position and self-propelled position, the first wheel assembly and the second wheel assembly are positioned to support the undercarriage chassis, the first wheel assembly and the second wheel assembly includes an engagement assembly, each engagement assembly generally includes a main shaft, a first lever assembly, and a second lever assembly.