公开(公告)号：US10380979B2

公开(公告)日：2019-08-13

申请号：US15724878

申请日：2017-10-04

Applicant: EASTMAN BRASS INSTRUMENTS, LLC

Inventor： Stephen Shires

IPC: G10D9/04 ,  G10D7/10 ,  G10D9/00

Abstract: Described is a twin valve attachment for musical instruments, such as a trombone. The attachment includes a lever that is rotatable between a B-Flat configuration and an F note configuration. Also included are first and second rotary valves. The first rotary valve is operably connected with the F lever, while the second rotary valve is operably connected with the first rotary valve. F-attachment piping is fluidly connected with both the first and second rotary valves. Thus, a user may rotate the F lever to selectively direct air flow through the F-attachment piping (for the F note configuration) or bypass the F-attachment piping (for the B-Flat configuration).