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:
Nov. 18, 2025
Filed:
Oct. 02, 2023
Arase Aizawa Aerospatiale Llc, Hamamatsu, JP;
Kunio Arase, Hamamatsu, JP;
ARASE AIZAWA AEROSPATIALE LLC, Hamamatsu, JP;
Abstract
A transmission device for an unmanned aerial vehicle (UAV), wherein arms driving propellers are positionable to not interfere with an air cleaner and a radiator. A transmission device for a UAV in which arms are positioned on a machine body upper section and propellers are driven using a straight-four engine, the transmission device including a drive gear that is attached to a crankshaft; a clutch shaft drive gear that meshes with the drive gear; a bevel gear that drives a drive shaft; a drive shaft base gear that is driven by the bevel gear; a top section gear train that includes a drive shaft main gear, a left sub-gear meshing with the main gear, a reverse gear meshing with the main gear, and a right sub-gear meshing with the reverse gear; first and second bevel gears that mesh with the left sub-gear and drive the first and second arms.