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公开(公告)号：US4031845A
公开(公告)日：1977-06-28
申请号：US681537
申请日：1976-04-29
Applicant: Edward J. Cook
Inventor： Edward J. Cook
CPC classification number: B60C23/0403
Abstract: A gas-actuated sound signal generator is provided to produce a simple, reliable sound signal of predetermined frequency, or combination of frequencies. The signal generator is intended for use primarily with a tire pressure sensing system on a vehicle as a means for transmitting the occurrence of a low tire pressure condition from a wheel to a microphone mounted in fixed position to the vehicle and connected via processing circuitry to an alarm near the operator. The device is operated upon the release of a small amount of air from the tire if the tire pressure drops, for example, below a preset limit. The air released from the tire flows into the signal generator and is converted into a sound signal for detection by the microphone. The signal generator is comprised of a cavity block, a shim and a cover. The block contains an entrance feed through which air is admitted as from the tire and a cavity spaced from the entrance feed. The shim is slotted and overlaid on the block with the slot extending between the cavity and the entrance feed. The cover is formed with a port which registers with the cavity and, when placed over the shim, defines a communicating slit nozzle between the cavity and the entrance feed, as well as a port communicating with the cavity through which the signal is emitted. Air under pressure entering into the cavity strikes an edge of the shim and oscillations are produced.
Abstract translation: 提供气体驱动的声音信号发生器以产生预定频率或频率组合的简单可靠的声音信号。 信号发生器主要用于车辆上的轮胎压力感测系统，作为用于将安装在固定位置的车轮的低轮胎压力状况的发生传送到车辆并经由处理电路连接到 在操作员附近报警。 如果轮胎压力下降，例如低于预设极限，则在从轮胎释放少量空气的情况下操作该装置。 从轮胎释放的空气流入信号发生器，并被转换成声音信号以由麦克风检测。 信号发生器由空腔块，垫片和盖组成。 该块包含入口进料，通过该入口进料空气从轮胎进入，并且与入口进料间隔开。 垫片开槽并重叠在块上，槽在腔和入口进料之间延伸。 盖形成有与空腔对准的端口，并且当放置在垫片上方时，在空腔和入口馈送之间限定了连通的狭缝喷嘴，以及与腔体通信的端口，通过该腔口发射信号。 进入腔内的压力下的空气撞击垫片的边缘，产生振荡。
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Patent Agency Ranking
公开(公告)号：US4266633A
公开(公告)日：1981-05-12
申请号：US18449
申请日：1979-03-08
Applicant: William A. Barabino , Edward J. Cook
Inventor： William A. Barabino , Edward J. Cook
CPC classification number: F16D66/028 , F16D66/024 , F16D2069/004
Abstract: A system is provided for indicating excessive wear of brake linings. The system is usable on vehicles such as automobiles, cars, trucks and busses as well as aircraft or other applications where it is desirable to detect excessive wear of brake linings during operation thereof. The system includes an acoustical signal generating device having an air inlet normally closed by the brake lining. When the lining wears away to a minimum safe thickness, the inlet is opened and ambient air flows into the generator to produce an acoustical signal. An acoustical receiver is positioned in spaced operative relation to the brake system and responds to the acoustical signal to provide a warning indication on the dashboard, for example, of the vehicle so that the operator of the vehicle will be alerted to the worn brake condition.
Abstract translation: 提供了一种用于指示制动衬片过度磨损的系统。 该系统可用于诸如汽车，汽车，卡车和公共汽车以及飞机或其他应用的车辆，其中期望在其操作期间检测制动衬片的过度磨损。 该系统包括具有通过制动衬片常闭的空气入口的声信号发生装置。 当衬里磨损到最小安全厚度时，入口打开，环境空气流入发生器以产生声学信号。 声学接收器被定位成与制动系统间隔开的操作关系，并响应于声学信号，以在例如车辆的仪表板上提供警告指示，使得车辆的操作者将被警告到磨损的制动条件。
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公开(公告)号：US4103282A
公开(公告)日：1978-07-25
申请号：US627959
申请日：1975-11-03
Applicant: Edward J. Cook
Inventor： Edward J. Cook
CPC classification number: B60C23/0403 , B60C23/0469 , B60C29/068
Abstract: A pressure-responsive signalling valve for use on pneumatic tires is adapted to generate a highly efficient acoustical signal whenever the pressure within the tire falls outside of a predetermined range. The emitted signal is detected by means of an acoustical receiver which, in turn, is coupled to an alarm typically in the form of a warning light or audio device conveniently located within the vehicle to alert the driver. The acoustical valve employs a rolling or flat seal disc diaphragm and a flat sealing arrangement providing a positive sealing action, minimal friction, low hysteresis and extremely precise pressure response characteristics.
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公开(公告)号：US4067376A
公开(公告)日：1978-01-10
申请号：US649846
申请日：1976-01-16
Applicant: William A. Barabino
Inventor： William A. Barabino
CPC classification number: B60C23/0403 , B60C23/004 , B60C23/0469 , F16K15/20
Abstract: Excessively high or low tire pressure is detected automatically with a warning signal generated for the operator. A device is attached to each wheel and includes a spring-loaded piston mounted for reciprocation in a cylinder formed in the device. The cylinder is provided with a porting arrangement which opens only at certain pressure limits. When the ports are opened a sonic or ultrasonic signal is generated and detected by sensors located in proximity to each wheel. The signals detected by the sensors are processed and utilized to actuate a warning signal that provides a visual and/or audio output for the operator. Means are provided for discriminating between background noise and the generated signal as well as to discriminate as to the location of the affected tire. In a modification of the invention, a reserve chamber is integrated into the body of the wheel and is adapted to replenish automatically air lost from the tire.
Abstract translation: 使用为操作员生成的警告信号自动检测到过高或过低的轮胎压力。 装置附接到每个车轮并且包括弹簧加载的活塞，其安装成在形成在装置中的气缸中往复运动。 气缸设置有仅在一定压力极限下打开的移动装置。 当端口打开时，声音或超声信号由位于每个车轮附近的传感器产生和检测。 由传感器检测到的信号被处理并用于致动警告信号，该警告信号为操作者提供视觉和/或音频输出。 提供了用于区分背景噪声和产生的信号的装置，并且对于受影响的轮胎的位置进行区分。 在本发明的修改中，储备室被集成到车轮的主体中并且适于补充自动从轮胎损失的空气。
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公开(公告)号：US3934223A
公开(公告)日：1976-01-20
申请号：US421538
申请日：1973-12-04
Applicant: William A. Barabino
Inventor： William A. Barabino
CPC classification number: B60C23/0403 , B60C23/004 , B60C23/0469 , F16K15/20
Abstract: Excessively high or low tire pressure is detected automatically with a warning signal generated for the operator. A device is attached to each wheel and includes a spring-loaded piston mounted for reciprocation in a cylinder formed in the device. The cylinder is provided with a porting arrangement which opens only at certain pressure limits. When the ports are opened a sonic or ultrasonic signal is generated and detected by sensors located in proximity to each wheel. The signals detected by the sensors are processed and utilized to actuate a warning signal that provides a visual and/or audio output for the operator. Means are provided for discriminating between background noise and the generated signal as well as to discriminate as to the location of the affected tire. In a modification of the invention, a reserve chamber is integrated into the body of the wheel and is adapted to replenish automatically air lost from the tire.
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公开(公告)号：US4186377A
公开(公告)日：1980-01-29
申请号：US858842
申请日：1977-12-08
Applicant: William A. Barabino
Inventor： William A. Barabino
CPC classification number: B60C23/0408 , B60C23/0469
Abstract: A method and apparatus are provided for monitoring tire pressure for motor vehicles, or the like, in which coded sound signals emitted from a wheel-mounted sound signal generator are detected and processed. The coded signal from the generator serves to distinguish the sound signal from background noise. The output of the generator is comprised of at least two coherent frequencies that beat acoustically with one another to produce an amplitude modulated sound signal that is then detected by a transducer which converts the sound signals into the electrical signals. The electrical signals are then fed through the processing circuitry including a detector which extracts the modulation envelope and applies it to an audio band-pass filter. The filter accepts the envelope within a predetermined frequency range, eliminating all signals which are not within the designed band pass. A second detector converts the audio signal to a DC level and feeds it to a threshold comparator. The level of the DC signal is directly proportional to the percentage of modulation of the originally received signal. If this level exceeds the threshold value of the comparator, the output actuates a bistable device, which, in turn, actuates a warning indicator.The rate of loss of tire pressure may also be determined by means of a signal generator adapted to emit at least two time-spaced sound signals at different pressures. The two signals are detected and processing circuitry calculates the time and/or pressure remaining before the vehicle becomes immobile. This information is displayed to the operator.
Abstract translation: 提供了一种用于监测从车载声音信号发生器发出的编码声音信号被检测和处理的机动车辆等的轮胎压力的方法和装置。 来自发生器的编码信号用于区分声音信号和背景噪声。 发生器的输出由至少两个相干频率组成，这些相干频率彼此声音地产生振幅调制的声音信号，然后由将声音信号转换成电信号的换能器检测。 然后，电信号通过处理电路馈送，该处理电路包括提取调制包络并将其施加到音频带通滤波器的检测器。 滤波器在预定频率范围内接受包络，消除不在设计频带内的所有信号。 第二个检测器将音频信号转换为直流电平并将其馈送到阈值比较器。 DC信号的电平与原始接收信号的调制百分比成正比。 如果该电平超过了比较器的阈值，则输出致动一个双稳态器件，这又启动了一个警告指示器。 轮胎压力损失率也可以通过适于在不同压力下发射至少两个间隔时间的声音信号的信号发生器来确定。 检测到两个信号，并且处理电路计算在车辆变得不动之前剩余的时间和/或压力。 该信息显示给操作员。
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