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17 条记录 (耗时 0.018 秒)

    Evaporative emission tester
    3.
    发明授权
    Evaporative emission tester 失效
    蒸发排放测试仪

    公开(公告)号：US5898108A

    公开(公告)日：1999-04-27

    申请号：US976143

    申请日：1997-11-21

    申请人： Daniel Mieczkowski ,  Mark J. Hasenberg ,  Thomas P. Becker ,  Matthew M. Crass ,  Robert D. Braun ,  Edward T. Gisske ,  Donald J. Caldwell

    发明人： Daniel Mieczkowski ,  Mark J. Hasenberg ,  Thomas P. Becker ,  Matthew M. Crass ,  Robert D. Braun ,  Edward T. Gisske ,  Donald J. Caldwell

    IPC分类号： F02M25/08 ,  G01M15/00

    CPC分类号： F02M25/0818 ,  F02M25/0809

    摘要： An evaporative emission tester is used to evaluate the integrity of a vehicle's evaporative emission control system, including determining the system's purge capability. The emission tester performs a purge flow test to determine whether fuel vapor stored in the vehicle's evaporative canister and present in the fuel tank is being drawn into the engine for combustion at a minimum amount. The emission tester also performs a pressure test of the vehicle's evaporative canister purge system, which includes the fuel tank and lines. The emission tester can function as a stand-alone unit or as an integrated product with a host computer.

    摘要翻译： 蒸发排放测试仪用于评估车辆蒸发排放控制系统的完整性，包括确定系统的清洗能力。 排放测试器进行吹扫流量测试，以确定存储在车辆的蒸发罐中并且存在于燃料箱中的燃料蒸汽是否以最小量被吸入发动机用于燃烧。 排放测试仪还对车辆的蒸发罐吹扫系统进行压力测试，该系统包括燃料箱和管线。 排放测试仪可以作为独立单元或与主机一体化的产品。

    Frequency and instantaneous voltage level meter
    4.
    发明授权
    Frequency and instantaneous voltage level meter 失效
    频率和瞬时电压电平表

    公开(公告)号：US5412312A

    公开(公告)日：1995-05-02

    申请号：US955348

    申请日：1992-10-01

    申请人： Matthew M. Crass ,  Robert D. Braun

    发明人： Matthew M. Crass ,  Robert D. Braun

    IPC分类号： G01R13/40 ,  G01R15/12 ,  G01R19/00 ,  G01R29/00

    CPC分类号： G01R13/406 ,  G01R15/12

    摘要： A volt/frequency meter includes LED arrays which provide bar-graph style meter displays of the instantaneous voltage and the frequency of a variable electric analog signal. Each LED in the voltage array corresponds to a predetermined voltage range and each LED in the frequency array corresponds to a predetermined frequency range. The meter is switchable among three different voltage scales and three different frequency scales. A separate LED flashes momentarily in response to the input signal crossing a user-determined limit set point which is adjusted through a knob on the front panel. The limit set point controls the operation of the frequency display such that the displayed frequency is the rate at which the analog signal crosses the limit set point.

    摘要翻译： 电压/频率计包括LED阵列，其提供瞬时电压和可变电模拟信号的频率的条形图式仪表显示。 电压阵列中的每个LED对应于预定的电压范围，并且频率阵列中的每个LED对应于预定的频率范围。 该仪表可在三种不同的电压标度和三种不同的频率范围之间切换。 单独的LED会响应于输入信号越过通过前面板上的旋钮调节的用户确定的极限设定点而短暂闪烁。 极限设定点控制频率显示的操作，使得显示的频率是模拟信号越过极限设定点的速率。

    Portable jump-starting battery pack with charge monitoring system
    5.
    发明授权
    Portable jump-starting battery pack with charge monitoring system 失效
    便携式启动电池组，带充电监控系统

    公开(公告)号：US06344733B1

    公开(公告)日：2002-02-05

    申请号：US09663694

    申请日：2000-09-22

    申请人： Matthew M. Crass ,  Robert W. Iverson

    发明人： Matthew M. Crass ,  Robert W. Iverson

    IPC分类号： H02J714

    CPC分类号： H02J7/0086 ,  H02J7/0047

    摘要： A battery pack includes a lead-acid battery and a charger port and an electronic switch connected between the two, the switch being controlled by a microcontroller which is connected to each of the battery and the charger port for separately monitoring the voltages thereat. The microcontroller operates under the control of a program which includes routines for comparing the battery voltage to the charger port voltage, for preventing closure of the switch unless the charger port voltage is at least a predetermined level and at least the battery voltage, for adjusting the duty cycle of the switch in accordance with the magnitude of the difference between the charger port voltage and the battery voltage, for detecting a bad battery by measuring the length of time required to increase the battery voltage from first to second predetermined levels, for reducing the switch duty cycle to a trickle charge level in the event of bad battery detection, and for disabling the bad battery detection routine in the event that a cigarette lighter adapter is coupled to the charger port. Audible and visible indicators may be provided to signal charging condition.

    摘要翻译： 电池组包括铅酸电池和充电器端口以及连接在两者之间的电子开关，开关由连接到每个电池和充电器端口的微控制器控制，用于分别监视其上的电压。 微控制器在程序的控制下操作，该程序包括用于将电池电压与充电器端口电压进行比较的例程，用于防止开关闭合，除非充电器端口电压至少为预定电平，并且至少为了调整电池电压 根据充电器端口电压和电池电压之间的差异的大小，开关的占空比，用于通过测量将电池电压从第一至第二预定电平增加所需的时间长度来检测坏电池，以减少 在电池检测不良的情况下将开关占空比转换成涓流充电电平，并且在点烟器适配器连接到充电器端口的情况下禁用坏电池检测程序。 可以提供可视和可见的指示符来指示充电状态。

    Fuse saving tester for fused circuit
    6.
    再颁专利
    Fuse saving tester for fused circuit 有权
    熔断器保险丝测试仪

    公开(公告)号：USRE41466E1

    公开(公告)日：2010-08-03

    申请号：US12316364

    申请日：2008-12-11

    申请人： Thomas P. Becker ,  Daniel D. Lionberg ,  Matthew M. Crass ,  William G. Bruno

    发明人： Thomas P. Becker ,  Daniel D. Lionberg ,  Matthew M. Crass ,  William G. Bruno

    IPC分类号： G01R31/02 ,  H01H85/30 ,  H01H31/02

    CPC分类号： G01R31/07 ,  G01R31/006 ,  G01R31/025 ,  G01R31/083

    摘要： In one form, tester for an electrical system, such as for a vehicle, develops repetitively applied, short duration, control current pulses for reducing load current pulses through the electrical system. An operator connects a pair of input contacts across a fuse holder. A circuit between the input contacts is closed momentarily and repetitively to produce repetitive current pulses from the electricity source through the system. A perceptible alert is produced when the magnitude of the current pulse exceeds that of a prescribed reference current value. In another form, a tester for an electrical system is designed to plug into the fuse terminals in a fuse box. The tester can include a plurality of interchangeable circuit breaker modules to allow the tester to be used on circuits having differing current ratings.

    摘要翻译： 在一种形式中，诸如用于车辆的电气系统的测试仪产生重复施加的短持续时间的控制电流脉冲，以减少通过电气系统的负载电流脉冲。 操作员将一对输入触点连接在保险丝座上。 输入触点之间的电路瞬间和重复地闭合，以从电源通过系统产生重复的电流脉冲。 当电流脉冲的幅度超过规定的参考电流值时，产生可察觉的警报。 在另一种形式中，用于电气系统的测试器被设计成插入保险丝盒中的熔丝端子。 测试器可以包括多个可互换的断路器模块，以允许测试器用于具有不同电流额定值的电路。

    Usage counter for portable jump-starting battery unit
    7.
    发明授权
    Usage counter for portable jump-starting battery unit 失效
    便携式启动电池单元的使用计数器

    公开(公告)号：US06252378B1

    公开(公告)日：2001-06-26

    申请号：US09596932

    申请日：2000-06-19

    申请人： Matthew M. Crass ,  Thomas P. Becker

    发明人： Matthew M. Crass ,  Thomas P. Becker

    IPC分类号： H02J700

    CPC分类号： H02J7/0047 ,  G01R19/16542 ,  H02J2001/006

    摘要： A usage counter has input terminals connectable to the terminals of a jump-starting battery pack. The counter has an IC comparator which generates an output signal when battery voltage drops below a predetermined reference level. If the output signal persists for a predetermined time period, indicating an attempt to jump-start an engine with the battery pack, an IC timer is triggered to output a count pulse which is inverted and then counted and displayed by an IC counter/display circuit. The usage counter circuit is powered by the battery pack and has a Zener diode which provides to the IC circuits a limited supply voltage which is unaffected by voltage spikes which might appear at the battery pack terminals. A capacitor maintains the reference voltage level despite momentary drops in battery terminal voltage.

    摘要翻译： 使用计数器具有可连接到跳跃起动电池组的端子的输入端子。 计数器具有IC比较器，当电池电压下降到预定的参考电平以下时，该比较器产生输出信号。 如果输出信号持续预定时间段，表示尝试用电池组启动发动机，则IC定时器被触发以输出反转的计数脉冲，然后由IC计数器/显示电路进行计数和显示 。 使用计数器电路由电池组供电，并具有齐纳二极管，其向IC电路提供有限的电源电压，其不受可能出现在电池组端子处的电压尖峰的影响。 尽管电池端子电压瞬间下降，电容器保持参考电压电平。

    Torque-angle instrument
    8.
    发明授权
    Torque-angle instrument 有权
    扭矩仪

    公开(公告)号：US07565844B2

    公开(公告)日：2009-07-28

    申请号：US11603540

    申请日：2006-11-22

    申请人： Matthew M. Crass ,  Thomas P. Becker ,  Matthew S. Marquette ,  Richard J. Hackl ,  Paul J. Beyerl ,  Marvin D. Thorell

    发明人： Matthew M. Crass ,  Thomas P. Becker ,  Matthew S. Marquette ,  Richard J. Hackl ,  Paul J. Beyerl ,  Marvin D. Thorell

    IPC分类号： B25B23/14

    CPC分类号： B25B23/1425

    摘要： An electronic torque-angle instrument including a generally tubular body having a gripping section and a pivoting head for engaging a workpiece, such as a nut or bolt, and a housing associated with the body and containing electronics, including a microprocessor, which permit individual or simultaneous measurement of torque and angle applied to the workpiece. The microprocessor includes stored programs which interpret a signal from an input, such as a gyroscopic sensor, and sends the interpreted signal to an output means. The signal is finally displayed as an accurate torque measure and/or angle measure from the output means.

    摘要翻译： 一种电子扭矩角仪器，其包括具有夹持部分和用于接合诸如螺母或螺栓的工件的枢转头部的大致管状体，以及与主体相关联并包含微处理器的壳体，其包括微处理器，其允许个体或 同时测量施加到工件的扭矩和角度。 微处理器包括解码来自诸如陀螺传感器之类的输入的信号的存储程序，并将解释的信号发送到输出装置。 该信号最终显示为来自输出装置的精确的扭矩测量和/或角度测量。

    Jump start battery pack and enclosure therefor
    9.
    发明授权
    Jump start battery pack and enclosure therefor 有权
    启动电池组及其外壳

    公开(公告)号：US06222342B1

    公开(公告)日：2001-04-24

    申请号：US09628095

    申请日：2000-07-28

    申请人： Daniel M. Eggert ,  Michael R. Mowry ,  Matthew M. Crass ,  Thomas P. Becker

    发明人： Daniel M. Eggert ,  Michael R. Mowry ,  Matthew M. Crass ,  Thomas P. Becker

    IPC分类号： H02J700

    CPC分类号： H02J7/0045 ,  Y10T307/625

    摘要： A portable battery jump start unit includes a portable, plastic, clamshell-type housing including a box-like open-top base and a box-like, open-bottom cover hingedly connected together for movement between open and closed conditions. A lead-acid battery is disposed in the housing, along with a state-of-charge monitoring circuit connected to the battery terminals and including a visible indicator viewable through an aperture in the housing. Cables are connected to the battery terminals and respectively extend through openings formed by cooperating notches in the mating edges of the base and cover, the cables respectively having clamp connectors at their distal ends which can be clamped onto posts projecting laterally outwardly from the sides of the base. A charger jack in the base is connected to the battery terminals for receiving a charger connector.

    摘要翻译： 便携式电池跳跃启动单元包括便携式塑料蛤壳式壳体，其包括盒状开口底座和铰接地连接在一起以在打开和关闭状态之间运动的盒状开口底盖。 铅酸蓄电池与电池端子连接的状态电荷监测电路一起设置在壳体中，并且包括通过壳体中的孔可观察到的可见指示器。 电缆连接到电池端子并分别延伸通过在基座和盖的配合边缘中配合的凹口形成的开口，电缆分别在其远端具有夹紧连接器，其可以夹紧在从侧面侧向外突出的柱上 基础。 基座中的充电器插孔连接到用于接收充电器连接器的电池端子。