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51. 发明授权

US3855511A Traction motor controller circuit and method 失效
标题翻译：牵引电机控制电路及方法
公开(公告)号：US3855511A
公开(公告)日：1974-12-17
申请号：US37804473
申请日：1973-07-11
申请人： MCCULLOCH CORP
发明人： SMITH S
IPC分类号： H02P7/29 , H02P7/00
CPC分类号： H02P7/29 , Y10S388/903 , Y10S388/91
摘要： A traction motor controller circuit and method in which the electronic switch supplying current to the motor is controlled as a function of load current between selected maximum and minimum limits. A manually variable throttle signal is compared with the sum of a signal related to motor current and a feedback signal from the comparator to act as a Schmitt trigger circuit in controlling the conduction of the electronic switch supplying current to the motor.
摘要翻译：牵引电动机控制器电路和方法，其中向电动机提供电流的电子开关作为所选择的最大和最小极限之间的负载电流的函数被控制。将手动可变节气门信号与与电动机电流相关的信号和来自比较器的反馈信号的和进行比较，以用作控制向电动机提供电流的电子开关的导通的施密特触发电路。

52. 发明授权

US3775659A Battery charger 失效
标题翻译：充电器
公开(公告)号：US3775659A
公开(公告)日：1973-11-27
申请号：US3775659D
申请日：1971-06-09
申请人： MCCULLOCH CORP
发明人： CARLSEN G
IPC分类号： H02J7/00 , H02J7/02 , H02J7/10
CPC分类号： H02J7/027 , H02J7/0093 , H02J7/022 , Y10S320/24
摘要： A battery charger for charging batteries that may have a nominal rated voltage equal to or greater than the voltage of the source, includes an accumulator of energy such as an inductor which is coupled across the source through a controllable switch for a first selected interval of time. The charger further includes a path between the accumulator of energy and the battery to be charged for the transfer of the stored energy to the battery. The path between the accumulator and the battery advantageously includes a unilateral impedance element having a recovery time such that a discharge path is provided for the battery during a second selected interval of time substantially less than the first selected interval of time.
摘要翻译：用于对可能具有等于或大于源的电压的标称额定电压的电池充电的电池充电器包括诸如电感器的能量累加器，该电感器通过可控开关在源上耦合第一选定的时间间隔。充电器还包括能量蓄积器和待充电的电池之间的路径，用于将存储的能量传送到电池。蓄电池和电池之间的路径有利地包括具有恢复时间的单向阻抗元件，使得在基本上小于第一选择的时间间隔的第二选定时间间隔期间为电池提供放电路径。

53. 发明授权

US3659170A Direct coupled power sources and braking means for tools such as lawn mowers 失效
标题翻译：直接联接电源和制动装置如工具
公开(公告)号：US3659170A
公开(公告)日：1972-04-25
申请号：US3659170D
申请日：1968-12-13
申请人： MCCULLOCH CORP
发明人： BURKETT WILFORD B , JACKSON ROBERT V
IPC分类号： H02P3/12 , H02K7/102 , H02K7/12
CPC分类号： H02K7/1026
摘要： A direct-current motor operating at a speed which is safe for a specified tool is directly coupled to the working element of the tool and a brake cooperates with the motor to stop the movement of the working element within a prescribed time after removal of power from the motor.
摘要翻译：以特定工具安全的速度运行的直流电动机直接耦合到工具的工作元件，并且制动器与电动机配合，以在去除电源之后的规定时间内停止工作元件的移动电机。

54. 发明授权

US3626270A Battery charger for single cells 失效
标题翻译：单电池电池充电器
公开(公告)号：US3626270A
公开(公告)日：1971-12-07
申请号：US3626270D
申请日：1970-03-20
申请人： MCCULLOCH CORP
发明人： BURKETT WILFORD B , BIGBEE JOHN H
IPC分类号： H02J7/00 , H02J7/10
CPC分类号： H02J7/0093
摘要： A method and circuit for rapid charging batteries, and in particular single cells wherein a battery is charged by imparting a progressively increasing charge to the battery by subjecting the battery to alternating charging and discharging intervals after a first interval in which a net discharge takes place through a path including a thermal switch which opens the current path in response to current flow therethrough. During a charging interval charge current pulses are applied to the battery being charged through a current path including a unilateral impedance element, such as a silicon-controlled rectifier, and during each discharge interval, a charge-discharge path is applied in parallel with the unilateral impedance element to effect a net discharge of the battery. The rapid charging of the battery is terminated by monitoring a terminal characteristic of the battery such as the quiescent battery terminal voltage or the temperature of the battery being charged and converting to a trickle charge in response to the attainment of a predetermined value of the monitored terminal characteristic.

55. 发明授权

US3619545A Hard facing machine 失效
标题翻译：硬面机
公开(公告)号：US3619545A
公开(公告)日：1971-11-09
申请号：US3619545D
申请日：1969-03-12
申请人： MCCULLOCH CORP
发明人： BORDEN ROLLAND ERNEST
IPC分类号： B23D63/00 , B23K31/02 , B23K9/04
CPC分类号： B27B17/025 , B23K31/025
摘要： Hard facing is applied to the end of a workpiece in the form of a chain saw blade by a heliarc torch while the blade is traversed twice and rotated between traverses. The traverses are produced by a table which is moved on a base. Rotation is effected by a motor mounted on the table. A control circuit determines the initiation and termination of the traverses and rotation at predetermined points in the hard face application cycle and during a return cycle. Weld wire is positively advanced into the welding zone by a weld wire feed assembly. A clamp holds the workpiece blade during the hard facing application. The torch, being carried with the weld wire feed assembly, is maintained in proper relationship to the workpiece by a cam which moves in index with the workpiece.

56. 发明授权

US3559025A Rapid charging of batteries 失效
公开(公告)号：US3559025A
公开(公告)日：1971-01-26
申请号：US3559025D
申请日：1968-07-15
申请人： MCCULLOCH CORP
发明人： BURKETT WILFORD B , BIGBEE JOHN
IPC分类号： H02J7/00 , H02J7/10
CPC分类号： H02J7/0093
摘要： A BATTERY IS CHARGED IN A VERY SHORT PERIOD OF TIME, FOR EXAMPLE LESS THAN FIFTEEN MINUTES, BY APPLYING A CHARGING CURRENT THAT IS IN EXCESS OF THE NOMINAL ONE-HOUR RATE OF THE BATTERY WITH DISCHARGE PULSE SANDWICHED BETWEEN CHARGE PULSES, WITH OR WITHOUT A REST PERIOD BETWEEN THE END OF THE CHARGE PULSE AND THE BEGINNING OF A DISCHARGE PULSE AND THE END OF THE DISCHARGE PULSE AND THE BEGINNING OF A CHARGE PULSE. THE DISCHARGE PULSE HAS A PEAK VALUE IN EXCESS OF THE NOMINAL ONE-HOUR RATE OF THE BATTERY AND THE PULSE HAS A SHORT PERIOD, FOR EXAMPLE ONE TO FOUR MICROSECONDS, WHICH TIME MAY BE RELATED TO THE TIME ASSOCIATED WITH THE ELECTROCHEMICAL CHARACTERISTICS AND CONSTRUCTION OF THE CELL OR CELLS OF THE BATTERY BEING CHARGE. THE FREQUENCY OF THE INTERRUPTIONS IS INCREASED AS THE TERMINAL VOLTAGE AND CHARGE OF THE BATTERY INCREASES. THE CHARGING AT THE HIGH RATE IS TERMINATED OR CONVERTED TO A TRICKLE CHARGE WHEN THE TERMINAL VOLTAGE OF THE BATTERY EXCEEDS A SELECTED VOLTAGE LEVEL ASSOCIATED WITH THE DESIRED LEVEL OF CHARGE IN THE BATTERY. THE DISCLOSURE RELATES TO BOTH THE METHOD OF RAPID CHARGE AND APPARATUS FOR RAPID CHARGING.

57. 发明授权

US3543735A Combustion system for internal combustion engine 失效
标题翻译：内燃机燃烧系统
公开(公告)号：US3543735A
公开(公告)日：1970-12-01
申请号：US3543735D
申请日：1968-06-24
申请人： MCCULLOCH CORP
发明人： KRUCKENBERG PERRY LESTER , ANDERSON HAROLD ELDEN , CARLSON RAY LAVETTE
IPC分类号： F02B19/04 , F02B75/02 , F02B75/22 , F02B3/00
CPC分类号： F02B19/04 , F02B75/22 , F02B2075/025 , Y02T10/125

58. 发明授权

US3485326A Magnetic stopping device 失效
标题翻译：磁力停止装置
公开(公告)号：US3485326A
公开(公告)日：1969-12-23
申请号：US3485326D
申请日：1967-10-20
申请人： MCCULLOCH CORP
发明人： WILKIN ELLSWORTH D
IPC分类号： B27B17/08 , F16D51/60 , B27B17/00
CPC分类号： B27B17/083

59. 发明授权

US3463267A Oil impregnating method and apparatus for chain 失效
标题翻译：油的注入方法和装置
公开(公告)号：US3463267A
公开(公告)日：1969-08-26
申请号：US3463267D
申请日：1965-10-23
申请人： MCCULLOCH CORP
发明人： DOOLEY JAMES L , GUDMUNDSEN AUSTIN
IPC分类号： F16H57/05 , F16N1/00 , F01M1/00 , F01M3/00
CPC分类号： F16H57/05

60. 发明授权

US3453732A Portable brush cutter 失效
标题翻译：便携式切割机
公开(公告)号：US3453732A
公开(公告)日：1969-07-08
申请号：US3453732D
申请日：1967-09-01
申请人： MCCULLOCH CORP
发明人： WILKIN ELLSWORTH D
IPC分类号： A01D34/90 , B26B27/00 , B26B25/00
CPC分类号： A01D34/902

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