公开(公告)号：US06442845B2

公开(公告)日：2002-09-03

申请号：US09852476

申请日：2001-05-10

申请人： Dale Kenneth Wheeler ,  Angela Marie Waldrop ,  Colin Dyke ,  William R. Lessig, III ,  Robert A. Meloni

发明人： Dale Kenneth Wheeler ,  Angela Marie Waldrop ,  Colin Dyke ,  William R. Lessig, III ,  Robert A. Meloni

IPC分类号： A01D34416

CPC分类号： A01D34/416 ,  A01D34/736

摘要： A trimming tool includes a selectable blade attachment for effecting a conversion between a string trimming mode and a blade trimming mode without requiring disassembly of the unit. The assembly includes a locking mechanism (46) selectively engageable with a pivoting trimming blade (40) that pivots between a retracted position and an extended position by centrifugal force. In one embodiment, the locking mechanism is reciprocated between the locked position and the unlocked position based on a rotation direction of the motor. The locking mechanism itself may also be reciprocated by centrifugal force. A spool lock, which is also positioned by centrifugal force, disables automatic string feeding in the blade trimming mode. The trimming tool may also be provided with a blower function incorporating a blower attachment readily attachable as a trimming guard of the trimming tool, or a blower assembly integrated into the tool components.

摘要翻译： 修剪工具包括可选择的刀片附件，用于在不需要拆卸单元的情况下实现弦修剪模式和刀片修剪模式之间的转换。 组件包括可选择性地与枢转修剪刀片（40）接合的锁定机构（46），枢转修剪刀片通过离心力在缩回位置和延伸位置之间枢转。 在一个实施例中，锁定机构基于电动机的旋转方向在锁定位置和解锁位置之间往复运动。 锁定机构本身也可以通过离心力往复运动。 通过离心力定位的阀芯锁在刀片修整模式下禁用自动送丝。 修剪工具还可以设置有鼓风机功能，其包括可以作为修剪工具的修剪保护件容易地附接的鼓风机附件或集成到工具部件中的鼓风机组件。

公开(公告)号：US20100281893A1

公开(公告)日：2010-11-11

申请号：US12777633

申请日：2010-05-11

申请人： KENNETH WHEELER

发明人： KENNETH WHEELER

IPC分类号： F25D17/06 ,  F25B17/00 ,  F25B39/04 ,  F25B1/10 ,  F25B41/00

CPC分类号： F24F3/1423 ,  F24F2203/1016 ,  F24F2203/1032 ,  F24F2203/1056 ,  F24F2203/1068 ,  F24F2203/1084

摘要： An air conditioning system includes a refrigeration cooling coil in fluid communication with process air, a refrigeration circuit containing refrigerant, a heat exchanger in fluid communication with the refrigerant and water, the heat exchanger adapted to transfer heat from the refrigerant to the water, a hot water coil in fluid communication with the water, a desiccant rotor having a process portion in fluid communication with the process air and a reactivation portion, and a reactivation blower adapted to move reactivation air over the hot water coil and through the reactivation portion of the desiccant rotor. A method of conditioning air is also described.

摘要翻译： 空调系统包括与处理空气流体连通的制冷冷却盘管，包含制冷剂的制冷回路，与制冷剂和水流体连通的热交换器，适于将热量从制冷剂传递到水的热交换器，热的 与水流体连通的水盘管，具有与处理空气和再活化部分流体连通的处理部分的干燥剂转子和重新激活鼓风机，其适于将再活化空气移动到热水盘管上并通过干燥剂的再活化部分 转子。 还描述了调节空气的方法。

公开(公告)号：US06460253B1

公开(公告)日：2002-10-08

申请号：US09622729

申请日：2000-11-07

申请人： Dale Kenneth Wheeler ,  Angela Marie Waldrop ,  Colin Dyke ,  William R. Lessig, III ,  Robert A. Meloni

发明人： Dale Kenneth Wheeler ,  Angela Marie Waldrop ,  Colin Dyke ,  William R. Lessig, III ,  Robert A. Meloni

IPC分类号： A01D34416

CPC分类号： A01D34/416 ,  A01D34/736

摘要： A trimming tool includes a selectable blade attachment for effecting a conversion between a string trimming mode and a blade trimming mode without requiring disassembly of the unit. The assembly includes a locking mechanism selectively engageable with a pivoting trimming blade that pivots between a retracted position and an extended position by centrifugal force. In one embodiment, the locking mechanism is reciprocated between the locked position and the unlocked position based on a rotation direction of the motor. The locking mechanism itself may also be reciprocated by centrifugal force. A spool lock, which is also positioned by centrifugal force, disables automatic string feeding in the blade trimming mode. The trimming tool may also be provided with a blower function incorporating a blower attachment readily attachable as a trimming guard of the trimming tool or a blower assembly integrated into the tool components.

摘要翻译： 修剪工具包括可选择的刀片附件，用于在不需要拆卸单元的情况下实现弦修剪模式和刀片修剪模式之间的转换。 组件包括可选择性地与枢转修剪刀片接合的锁定机构，所述枢转修剪刀片通过离心力在缩回位置和延伸位置之间枢转。 在一个实施例中，锁定机构基于电动机的旋转方向在锁定位置和解锁位置之间往复运动。 锁定机构本身也可以通过离心力往复运动。 通过离心力定位的阀芯锁在刀片修整模式下禁用自动送丝。 修剪工具还可以设置有鼓风机功能，其包括容易附接的作为修整工具的修剪防护件的鼓风机附件或集成到工具部件中的鼓风机组件。

公开(公告)号：US20050073294A1

公开(公告)日：2005-04-07

申请号：US10680707

申请日：2003-10-07

申请人： Donald Baxter ,  Kenneth Wheeler ,  David Nguyen

发明人： Donald Baxter ,  Kenneth Wheeler ,  David Nguyen

IPC分类号： G01R15/18 ,  G01R19/00 ,  G01R33/00

CPC分类号： G01R15/183 ,  G01R19/003

摘要： A current control circuit that employs a magnetic amplifier and an active feedback circuit. The feedback circuit establishes the effective operating current of the amplifier at a fixed point. The magnetic amplifier includes a pair of oppositely wound gate windings, a bias winding and a control winding. The gate windings are driven by an oscillator driver that generates a gate winding current and a gate winding voltage. A reference voltage and the gate winding voltage are applied to a feedback amplifier and the feedback circuit. When the gate winding voltage becomes equal to the reference voltage, the feedback circuit is stable and the gate winding current is set to a desired zero current operating point.

摘要翻译： 一种采用磁放大器和有源反馈电路的电流控制电路。 反馈电路在固定点建立放大器的有效工作电流。 磁放大器包括一对相对卷绕的栅极绕组，偏置绕组和控制绕组。 栅极绕组由产生栅极绕组电流和栅极绕组电压的振荡器驱动器驱动。 参考电压和栅极绕组电压被施加到反馈放大器和反馈电路。 当栅极绕组电压变得等于参考电压时，反馈电路是稳定的，并且栅极绕组电流被设置到期望的零电流工作点。