US 11,787,372 B2
Apparatus and method for lowering and raising a trailer
William J. Hicks, Muskegon, MI (US); Andrew L. Wallner, Grand Rapids, MI (US); David Sun, Placentia, CA (US); Tianyu Ling, Allegan, MI (US); Patrick Salois, Muskegon, MI (US); and Brian M. Collins, Grand Rapids, MI (US)
Assigned to SAF-Holland, Inc., Muskegon, MI (US)
Filed by SAF-HOLLAND, Inc., Muskegon, MI (US)
Filed on Jul. 21, 2021, as Appl. No. 17/381,905.
Application 17/381,905 is a continuation of application No. 16/128,701, filed on Sep. 12, 2018, granted, now 11,148,645.
Application 16/128,701 is a continuation in part of application No. 15/881,496, filed on Jan. 26, 2018, abandoned.
Claims priority of provisional application 62/472,825, filed on Mar. 17, 2017.
Claims priority of provisional application 62/451,434, filed on Jan. 27, 2017.
Prior Publication US 2021/0347339 A1, Nov. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B60S 9/08 (2006.01); F16H 3/66 (2006.01); F16H 37/04 (2006.01); F16H 1/22 (2006.01); F16H 25/20 (2006.01); H02K 7/116 (2006.01); H02K 11/00 (2016.01); H02K 11/28 (2016.01)
CPC B60S 9/08 (2013.01) [F16H 1/22 (2013.01); F16H 1/222 (2013.01); F16H 3/66 (2013.01); F16H 25/20 (2013.01); F16H 37/04 (2013.01); H02K 7/116 (2013.01); H02K 11/0094 (2013.01); H02K 11/28 (2016.01); F16H 2025/2065 (2013.01); F16H 2025/2081 (2013.01); F16H 2025/2084 (2013.01); F16H 2025/2087 (2013.01); F16H 2025/2093 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/201 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A landing gear assembly, comprising:
a leg assembly including a first portion and a second portion, wherein the first and second portions of the leg assembly telescopingly engage one another;
a gear assembly operably coupled to the first and second leg portions and configured to telescopingly move the first and second leg portions with respect to one another, the gear assembly including an input shaft; and
a drive assembly coupled to the gear assembly and comprising:
a gear arrangement configured to drive the drive shaft of the gear assembly at a first speed and at a second speed that is different than the first speed;
an electric motor configured to drive the gear arrangement; and
a battery configured to provide power to the motor.