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:
Oct. 12, 2021
Filed:
Feb. 23, 2018
Imasen Electric Industrial Co., Ltd., Inuyama, JP;
Katsunori Uchimura, Nagoya, JP;
Koichi Toyama, Nagoya, JP;
Yoshio Miyata, Nagoya, JP;
Tetsuo Momo, Nagoya, JP;
Toshihiko Kawamura, Nagoya, JP;
Junjiro Yoshimura, Nagoya, JP;
IMASEN ELECTRIC INDUSTRIAL CO., LTD., Inuyama, JP;
Abstract
An electronic horn includes a cover () on a front side of an intermediate element (). A first passage (P) within the horn is defined by a central portion () of the cover () that projects into a cylindrical interior of a cylindrical water-proofing wall (). Second passages (PPP) extend generally concentrically with respect to the first passage (P) and are respectively defined by water-proofing walls () that are formed on the cover () and project into the interior spaces of water-proofing walls (). The outermost second passage (P) opens toward the forward direction. The first and second passages (P-P) extend in a back-and-forth path that prevents any rainwater, which has entered the interior of the horn through the opening of the outermost second passage (P), from reaching a resonance space () defined between the resonator () and a sound-generating oscillator ().