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. 28, 1978
Filed:
Dec. 12, 1977
Akihiko Takeuchi, Hamamatsu, JP;
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Abstract
A brass wind musical instrument comprises two main tubes along which a plurality of bypasses are arranged, the bypasses being inserted in series into the corresponding main tubes by the action of valve assemblies; an intermediate tube; a first changeover valve, which, while remaining inoperative, effects communication between a mouthpiece and one end of one of the main tubes, as well as between one end of the other main tube and one end of the intermediate tube, and which, while being operated, ensures communication between the mouthpiece and said one end of the other main tubes, as well as between said one end of said one main tube and said one end of the intermediate tube; and a second changeover valve, which, while remaining inoperative, carries out communication between a bell and the other end of said one main tube, as well as between the other end of the other main tube and the other end of the intermediate tube, and, when operated, attains communication between the bell and the other end of the other main tube, as well as between the other end of said one main tube and the other end of the intermediate tube, and wherein the nonoperation, selective use and simultaneous operation of the two changeover valves enable the brass wind musical instrument to be played over a broad range of musical tones.