公开(公告)号：US6109202A

公开(公告)日：2000-08-29

申请号：US229015

申请日：1999-01-12

Applicant: Simon Manville Topman ,  Michael Colin Sharp

Inventor： Simon Manville Topman ,  Michael Colin Sharp

IPC: G10K5/00 ,  B06B3/00

CPC classification number: G10K5/00

Abstract: A comprising a body (1) provided at each end with a mouthpiece (3',6) having an air passage which communicates with a sound chamber (4,5), the chambers each being provided with a vent (V.sub.1, V.sub.2) in which is located an air splitter arranged so that air blown into the chamber through the associated mouthpiece is directed to the air splitter. The two vents (V.sub.1, V.sub.2) open at opposite sides of the body (1) so that the whistle can be blown from either end with the associated air vent exhausting in an upward direction by rotating the whistle about a generally horizontal axis when changing ends. One of the sound chambers (5) contains a pea and is provided with a protuberance (3c) arranged to project into the associated vent (V.sub.2) to prevent the pea becoming stuck in the vent. This chamber is of conical shape at one end.

Abstract translation: A包括在每个端部设置有具有与声室（4,5）连通的空气通道的接口（3'，6）的主体（1），每个室设有通风口（V1，V2） 其设置有空气分配器，其布置成使得通过相关联的吹口吹入室中的空气被引导到空气分配器。 两个通风口（V1，V2）在主体（1）的相对侧打开，使得哨子可以从相应的通风口从两端吹出，相关联的排气通过沿着向上的方向排出，当改变端部时围绕大致水平的轴旋转哨子 。 声音室（5）中的一个包含豌豆，并且设置有突出部（3c），其突出到相关联的通气口（V2）中，以防止豌豆卡在通气口中。 这个腔室在一端是圆锥形的。

公开(公告)号：US06698377B1

公开(公告)日：2004-03-02

申请号：US09229014

申请日：1999-01-12

Applicant: Simon Manville Topman ,  Michael Colin Sharp

Inventor： Simon Manville Topman ,  Michael Colin Sharp

IPC: G10K502

CPC classification number: G10K5/00 ,  A01K15/02 ,  A01M31/004

Abstract: A dog whistle comprises a body formed in two parts (2,3) and provided with a mouthpiece (4) which communicates through an air passage (10) with a sound chamber (5) having a vent (6) provided with an air splitter (9), the air passage containing a ramp (8) which directs the airflow produced by blowing the whistle into the sound chamber and towards the air splitter which thereby produces a whistling sound. The chamber produces sound having a narrow frequency bandwidth lying in the range 400 to 800 Hertz, preferably about 400 Hertz. The diameter of the sound chamber is within about 10% of its length and the ramp is at an angle of less than 8°, preferably 4° 30′, to the axis of the air passage. The angle of the surface of the air splitter is greater than 38° preferably 55°.

Abstract translation: 狗口哨包括形成在两个部分（2,3）中并具有通过空气通道（10）连通的接口管（4）的本体和具有通风口（6）的声室（5），所述通风口（6）设置有空气分配器 （9），空气通道包含斜面（8），该斜坡（8）将通过吹哨声产生的气流引导到声室并且朝向空气分离器，从而产生吹口哨声。 该室产生具有窄的频率带宽的声音，其范围为400至800赫兹，优选为约400赫兹。 声室的直径在其长度的约10％内，并且斜面与空气通道的轴线成小于8°，优选为4°30'的角度。 空分器的表面的角度大于38°，最好是55°。