公开(公告)号：US07036548B2

公开(公告)日：2006-05-02

申请号：US10803524

申请日：2004-03-17

申请人： Edward C. Johnston ,  James M. West

发明人： Edward C. Johnston ,  James M. West

IPC分类号： E05D15/06

CPC分类号： E05F5/003 ,  E05D13/04 ,  E05D15/24 ,  E05Y2201/48 ,  E05Y2900/106 ,  Y10T292/438

摘要： A roller stop (50) for a sectional door (D) having a plurality of hinged panels 20, rollers (30) attached to the panels, and a pair of tracks (T, T′) receiving the rollers for guiding the sectional door between a closed vertical position and an open horizontal position, the roller stop having a body portion (27), and at least one clamping member 67, 68 associated with the body portion adapted to engage one of the tracks, wherein the body portion is adapted to contact at least one of the rollers to temporarily maintain the sectional door in a predetermined position.

摘要翻译： 用于具有多个铰接面板20的分段门（D）的滚子停止件（50），连接到面板的滚子（30）和一对轨道（T，T'），其接纳用于将分段门 闭合的垂直位置和开放的水平位置，所述滚子止动器具有主体部分（27），以及至少一个与所述主体部分相关联的夹紧部件67,68，其适于接合所述轨道之一，其中所述主体部分适于 接触至少一个辊子，以将分段门暂时保持在预定位置。

公开(公告)号：US4002881A

公开(公告)日：1977-01-11

申请号：US479000

申请日：1974-06-13

申请人： James M. West

发明人： James M. West

IPC分类号： F16L53/00 ,  F27D3/18 ,  H05B1/02 ,  F24H1/10

CPC分类号： H05B1/0244 ,  F16L53/004 ,  F27D3/18 ,  Y10T137/6606 ,  Y10T307/685

摘要： An apparatus for heating fluids includes a pipe through which the fluid to be heated flows having a ferromagnetic pipe attached in heat-transmitting relationship thereto. An insulated wire extends longitudinally through the ferromagnetic pipe and is electrically connected in series therewith. The secondary windings of a pair of transformers are connected in series with each other and the ferromagnetic pipe by the insulated wire and the primary windings of the transformers are connected to a source of alternating current. A control responsive to the temperature of the fluid in the fluid conveying pipe is provided for regulating the power output to the series connected ferromagnetic pipe and insulated wire by, in alternative embodiments, disconnecting the transformers from the circuit, reversing the polarity of one transformer secondary with respect to the secondary of the other or bypassing one of the transformers.

摘要翻译： 用于加热流体的装置包括管道，待加热流体流过的管道具有以热传递关系附着的铁磁管。 绝缘电线纵向延伸通过铁磁管并与其串联电连接。 一对变压器的次级绕组彼此串联连接，铁磁管通过绝缘线和变压器的初级绕组连接到交流电源。 在替代实施例中，提供了响应于流体输送管中的流体温度的控制器，用于通过在替代实施例中将变压器与电路断开连接来反转一个变压器次级的极性来调节输出到串联铁磁管和绝缘电线的功率 相对于另一个的次级或绕过其中一个变压器。