Patent · US Active

Apparatus and method for lowering and raising a trailer

US11787372B2 · kind B2 · utility

4Cited by

1References

28Claims

0Family size

Assignee

SAF-Holland, Inc. · DE

Inventors

William J. Hicks · Muskegon, US
Andrew L. Wallner · Grand Rapids, US
David Sun · Shanghai, CN
Tianyu Ling · Allegan, US
Patrick Salois · Muskegon, US
Brian M. Collins · Grand Rapids, US

Key dates

Filing date	Jul 21, 2021
Grant date	Oct 17, 2023
Priority date	—
Expiry date	Nov 29, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/201
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A landing gear assembly includes 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 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.