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:
Jan. 27, 2026
Filed:
Sep. 02, 2022
Honda Motor Co., Ltd., Tokyo, JP;
Norikazu Kawai, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A propulsion apparatus includes a screw, a unit case, an anti-cavitation plate, a heat generation portion, and a cooling liquid passage. The screw is submerged in outside water and generates a propulsion force. The unit case accommodates at least a power transmission mechanism which transmits power from a drive source to the screw. The anti-cavitation plate is arranged on the unit case at a higher position than the screw, and at least part of the anti-cavitation plate is submerged in outside water. The heat generation portion is arranged at an inside or an outside of the unit case. The cooling liquid passage causes a cooling liquid to flow to the heat generation portion. Part of the cooling liquid passage is arranged within the anti-cavitation plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile