The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2021
Filed:
Mar. 05, 2019
Airman Products, Llc, Brighton, MI (US);
Richard Lee Conaway, Grand Haven, MI (US);
Richard Allen Conaway, Nunica, MI (US);
AIRman Products, LLC, Brighton, MI (US);
Abstract
A semi-trailer landing gear assembly can include a set of legs actuable to raise and lower a semi-trailer. Each leg can include a foot abutting the ground and a support abutting the semi-trailer. A rotatable shaft couples to the set of legs where rotation of the rotatable shaft raises and lowers the legs. A crank can operably couple to the rotatable shaft to rotate the rotatable shaft. At least two air drivers operably couple to the crank to rotate the crank in an opposing manner such that at least one air driver is always offset from the direction of rotation to provide continuous torque.