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31. 发明授权

US4054848A Ultrasonic oscillator 失效
标题翻译：超音波振荡器
公开(公告)号：US4054848A
公开(公告)日：1977-10-18
申请号：US778744
申请日：1977-03-17
申请人： Sigeyuki Akita
发明人： Sigeyuki Akita
IPC分类号： H04R3/00 , B06B1/02 , B06B1/06 , F02M27/08 , H03B5/36 , H03H5/00
CPC分类号： H03B5/36 , B06B1/0223 , B06B2201/40 , B06B2201/77
摘要： An ultrasonic oscillator, which can be mounted on a vehicle and which enables an oscillating element itself to generate a high ultrasonic energy, comprising a storage battery having one power line thereof grounded, a DC -- DC converter which is electrically isolated from said power lines of the storage battery and which supplies D.C. power to non-grounded power lines thereof, and a Darlington transistor circuit having a ultrasonic oscillating element connected across base and collector thereof.
摘要翻译：一种超声波振荡器，其可以安装在车辆上，并且使得振荡元件本身能够产生高的超声能量，包括具有其一个电力线接地的蓄电池，与所述电力线的电力线隔离的DC-DC转换器蓄电池，并且向其非接地电力线提供DC电力，以及具有连接在其基极和集电极上的超声波振荡元件的达林顿晶体管电路。

32. 发明授权

US4047149A Brake checking system 失效
标题翻译：制动检查系统
公开(公告)号：US4047149A
公开(公告)日：1977-09-06
申请号：US730718
申请日：1976-10-08
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
IPC分类号： B60T17/22 , F16D66/02
CPC分类号： F16D66/022 , B60T17/22
摘要： The inclusion of air into the brake system or the presence of a clearance between the brake shoes and the brake drums which is greater than a predetermined value is detected from the fact that the residual stroke of the brake pedal is increased each time the brake pedal of a vehicle is depressed. A brake sensor produces a frequency corresponding to the displacement of the brake pedal, and first and second displacement detecting circuits respectively detect the maximum displacement during first and second brake pedal movements. A comparison circuit compares the maximum displacements detected by the detecting circuits and produces a signal corresponding to the difference between the maximum displacements and a display circuit displays the signal from the comparison circuit to give a warning.
摘要翻译：从刹车踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板一辆车沮丧制动传感器产生对应于制动踏板的位移的频率，第一和第二位移检测电路分别检测在第一和第二制动踏板运动期间的最大位移。比较电路比较由检测电路检测到的最大位移，并产生与最大位移之间的差相对应的信号，并且显示电路显示来自比较电路的信号以发出警告。

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