公开(公告)号：US4338576A

公开(公告)日：1982-07-06

申请号：US54588

申请日：1979-07-03

Applicant: Minoru Takahashi ,  Sadao Mitsui

Inventor： Minoru Takahashi ,  Sadao Mitsui

IPC: B05B17/06 ,  B06B1/02 ,  H03B5/36

CPC classification number: B06B1/0207 ,  B05B17/0615 ,  B06B2201/40 ,  B06B2201/77

Abstract: Noise potentials and radiation in an ultrasonic nebulizer are reduced by separating the oscillator and power supply and shielding the former, with one of the DC power lines to the oscillator passing through an aperture in the metal casing that shields the oscillator, while the other power supply line is connected to that casing. Oscillator control may be achieved by an unshielded variable resistor coupled by conductors of extended length to the oscillator by a filter circuit.

Abstract translation: 通过分离振荡器和电源并屏蔽前者，降低了噪声电位和辐射，其中一条直流电源线通过振荡器穿过屏蔽振​​荡器的金属外壳中的孔，而另一个电源 线连接到该套管。 振荡器控制可以通过一个非屏蔽的可变电阻器来实现，该可变电阻器通过一个滤波器电路与延迟长度的导体耦合到振荡器。

公开(公告)号：US4180809A

公开(公告)日：1979-12-25

申请号：US916155

申请日：1978-06-16

Applicant: Robert S. Feldstein

Inventor： Robert S. Feldstein

IPC: B06B1/02 ,  G08B5/00

CPC classification number: B06B1/0284 ,  B06B2201/40

Abstract: An electronic siren wherein push-pull output transistor stages are used to drive an inductive load for producing an audible signal. Thermally induced base leakage currents are diverted from the transistor stages through the use of a control network which alternately removes a constantly asserted forward biasing signal therefrom. A current diverting network operating in conjuction with a series connected common emitter resistor serves to limit excess current flow at the output transistor stages and a shutdown network responding to a non-saturated on condition at either transistor stage serves to shut the circuit down in the event of short circuits and the like.

Abstract translation: 其中推挽输出晶体管级用于驱动感性负载以产生可听信号的电子警报器。 热诱导的基极泄漏电流通过使用控制网络从晶体管级转移，控制网络从其交替地去除不断断言的正向偏置信号。 与串联连接的公共发射极电阻结合工作的电流转向网络用于限制输出晶体管级的过流电流，并且响应于任一晶体管级的非饱和导通条件的停机网络用于在事件中关闭电路 的短路等。

公开(公告)号：US2851884A

公开(公告)日：1958-09-16

申请号：US24649951

申请日：1951-09-13

Applicant: ARENBERG DAVID L

Inventor： ARENBERG DAVID L

IPC: H01L41/22

CPC classification number: B06B1/0207 ,  B06B1/0644 ,  B06B2201/40 ,  G01N29/04 ,  G01N2291/0428 ,  G01N2291/044 ,  G01N2291/2698

公开(公告)号：US2724107A

公开(公告)日：1955-11-15

申请号：US29345752

申请日：1952-06-13

Applicant: ULTRASCHALL GERATEBAU DR BORN

Inventor： HEINZ BORN

IPC: B06B1/02

CPC classification number: B06B1/0253 ,  B06B2201/40 ,  B06B2201/55