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公开(公告)号：US6055734A
公开(公告)日：2000-05-02
申请号：US262189
申请日：1999-03-04
摘要： A hand held circular saw for a portable circular saw 10 in which a viewing cutout 34 is provided through the housing 12 between an electric motor 14 and a blade guard support member 19. A transparent chip shield 32 is attached to the housing 12 and is pivotable between an operating position covering the viewing aperture and a raised cleaning position. In the preferred embodiment, notch engaging bosses 48 provided on the chip shield engage notches 50 in the housing 12 to snap lock the chip shield in the operating position.
摘要翻译： 一种用于便携式圆锯10的手持式圆锯，其中通过壳体12在电动机14和刀片保护支撑构件19之间提供观察切口34.透明芯片屏蔽32附接到壳体12并且可枢转 在覆盖观察孔的操作位置和升高的清洁位置之间。 在优选实施例中，设置在芯片屏蔽上的切口接合凸台48与壳体12中的凹口50接合，以将芯片屏蔽件卡扣在操作位置。
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公开(公告)号：US20100156182A1
公开(公告)日：2010-06-24
申请号：US12426356
申请日：2009-04-20
IPC分类号： H02J9/06
CPC分类号： E05F15/668 , E05Y2400/612 , E05Y2800/252 , E05Y2900/106 , H02J9/06 , Y10T307/625
摘要： A garage door opener having a secondary power source. The garage door opener includes a drive unit and an opening mechanism. The drive unit is configured to be coupled to an external AC power source and to a removable battery pack that provides DC power. The drive unit includes a power unit, a motor coupled to the power unit, and a drive mechanism coupled to the motor. The opening mechanism is coupled to the drive mechanism and configured to open and close a garage door. When AC power is not available, the power unit uses the DC power to operate the garage door opener.
摘要翻译： 具有二次电源的车库门开启器。 车库开门器包括驱动单元和开启机构。 驱动单元被配置为耦合到外部AC电源和提供DC电力的可移除电池组。 驱动单元包括动力单元，耦合到动力单元的马达以及联接到马达的驱动机构。 打开机构联接到驱动机构并构造成打开和关闭车库门。 当交流电不可用时，电源单元使用直流电来操作车库门开启器。
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公开(公告)号：US07270598B2
公开(公告)日：2007-09-18
申请号：US10843069
申请日：2004-05-11
申请人： David Eric Dutterer , David G. Peot , Kenneth M. Brazell , Ernest Chandler Bostic , Michael Halbert McQuinn , Charles M. Wacker
发明人： David Eric Dutterer , David G. Peot , Kenneth M. Brazell , Ernest Chandler Bostic , Michael Halbert McQuinn , Charles M. Wacker
IPC分类号： B24B23/00
CPC分类号： B24B55/102 , B24B23/03
摘要： An orbital sander is provided having a number of novel features including a high speed permanent magnet DC motor having a relatively flat rpm versus torque curve. The sander includes an AC to DC power supply, a remotely located on/off switch operated by a switch actuator bar extending transversely through the housing enabling the operator to actuate the on/off switch by alternatively pushing opposed ends of the actuator bar. The orbital sander further includes a fan having non-uniformly spaced blades, eliminating the need for a conventional counterweight, and a dust outlet adapted to be alternatively connected to a dust canister or alternate size collector vacuum hoses.
摘要翻译： 提供了具有许多新颖特征的轨道磨光机，包括具有相对平坦的转速对转矩曲线的高速永磁直流电动机。 砂光机包括交流 - 直流电源，远程定位的开/关开关由开关致动器杆横向延伸穿过壳体，使得操作者可以通过交替地推动致动器杆的相对端来致动开/关开关。 轨道打磨机还包括具有不均匀间隔的叶片的风扇，消除了对常规配重的需要，以及适于交替地连接到灰尘罐或替代尺寸集尘器真空软管的灰尘出口。
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公开(公告)号：US06758731B2
公开(公告)日：2004-07-06
申请号：US09927282
申请日：2001-08-10
申请人： David Eric Dutterer , David G. Peot , Kenneth M. Brazell , Ernest Chandler Bostic , Michael Halbert McQuinn , Charles M. Wacker
发明人： David Eric Dutterer , David G. Peot , Kenneth M. Brazell , Ernest Chandler Bostic , Michael Halbert McQuinn , Charles M. Wacker
IPC分类号： B24B2300
CPC分类号： B24B55/102 , B24B23/03
摘要： An orbital sander is provided having a number of novel features including a high speed permanent magnet DC motor having a relatively flat rpm versus torque curve. The sander includes an AC to DC power supply, a remotely located on/off switch operated by a switch actuator bar extending transversely through the housing enabling the operator to actuate the on/off switch by alternatively pushing opposed ends of the actuator bar. The orbital sander further includes a fan having non-uniformly spaced blades, eliminating the need for a conventional counterweight, and a dust outlet adapted to be alternatively connected to a dust canister or alternate size collector vacuum hoses.
摘要翻译： 提供了具有许多新颖特征的轨道磨光机，包括具有相对平坦的转速对转矩曲线的高速永磁直流电动机。 砂光机包括交流 - 直流电源，远程定位的开/关开关由开关致动器杆横向延伸穿过壳体，使得操作者可以通过交替地推动致动器杆的相对端来致动开/关开关。 轨道打磨机还包括具有不均匀间隔的叶片的风扇，消除了对常规配重的需要，以及适于交替地连接到灰尘罐或替代尺寸集尘器真空软管的灰尘出口。
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