公开(公告)号：US08091372B1

公开(公告)日：2012-01-10

申请号：US12401969

申请日：2009-03-11

申请人： Mark Ekern

发明人： Mark Ekern

IPC分类号： F25D21/00

CPC分类号： F25B29/003 ,  F25B13/00 ,  F25B47/02 ,  F25B2700/11 ,  F25B2700/2106 ,  F25D21/025

摘要： A heat pump defrost system for efficiently defrosting an outdoor coil while simultaneously operating the heat pump in a normal heating manner. The heat pump defrost system generally includes a primary flow circuit including an indoor heat exchanger, an outdoor heat exchanger, a compressor connected thereto and a reverse valve for toggling a direction of refrigerant flow therethrough, and an auxiliary flow circuit for deicing the outdoor heat exchanger. The auxiliary flow circuit includes a valve for connecting the auxiliary flow circuit to the primary flow circuit, a heat sink in line with the auxiliary flow circuit, wherein the heat sink stores defrost fluid within the auxiliary flow circuit, at least one thermostat to read an outdoor ambient temperature and a control unit for operatively engaging the valve to direct the hot gas from the compressor of the primary circuit within the auxiliary flow circuit and the heat pump according to the outdoor ambient temperature for deicing the outdoor heat exchanger.

摘要翻译： 一种热泵除霜系统，用于在以常规加热方式同时操作热泵的同时有效地除霜室外线圈。 热泵除霜系统通常包括一个主流回路，其包括室内热交换器，室外热交换器，与其连接的压缩机和用于切换制冷剂流动方向的反向阀，以及辅助流动回路，用于除冰室外热交换器 。 辅助流动回路包括用于将辅助流动回路连接到一次流动回路的阀，与辅助流动回路一致的散热器，其中散热器在辅助流动回路内存储除霜流体，至少一个恒温器读取 室外环境温度和控制单元，用于操作地接合阀门，以根据室外环境温度将来自主回路的压缩机的热气体引导到辅助流动回路和热泵内，以用于除冰室外热交换器。

公开(公告)号：US06837137B2

公开(公告)日：2005-01-04

申请号：US10058602

申请日：2002-01-28

申请人： Mark Ekern

发明人： Mark Ekern

IPC分类号： B25H1/00 ,  B27B5/07 ,  B26D7/00 ,  A47F5/12 ,  F16M11/00

CPC分类号： B27B5/07 ,  B25H1/00 ,  Y10S269/901 ,  Y10T83/68 ,  Y10T83/7693

摘要： A cutting stand for sheet goods is disclosed that includes supports, with each support including a foot, a lower upright joined to the foot and an angled upper support joined to the lower support. The cutting stand additionally includes a carriage joined to the supports, and sheet goods may be removably mounted on the carriage. The cutting stand also includes a guide movably joined to sheet goods, and the guide is adapted to be removable from the sheet goods.

公开(公告)号：US5815926A

公开(公告)日：1998-10-06

申请号：US870040

申请日：1997-06-05

申请人： Mark Ekern

发明人： Mark Ekern

IPC分类号： B23D21/14 ,  B23D45/12 ,  B23D59/00 ,  B23D21/08

CPC分类号： B23D59/002 ,  B23D21/14 ,  B23D45/128

摘要： A new Internal Pipe Cutter for providing a cutting tool designed for cutting the wall of a pipe from inside the pipe through an opening at one end of the pipe. The inventive device includes an elongated shaft having an upper end adapted for connection to a rotational power tool and a lower end to which a rotary cutting blade may be perpendicularly attached. A set collar is slidably mounted on and adjustably positioned along the shaft. A gripping sleeve is disposed around the set collar and is slidably and rotatably mounted on the shaft whereby the gripping sleeve and the set collar are conjointly positionable along the shaft and whereby the shaft and the set collar conjointly rotate independent of the gripping sleeve. The gripping sleeve includes a guide flange at a lower end thereof wherein the guide flange abuts the open end of the pipe as the rotary cutting blade is circled within the inside of the pipe. Accordingly, the set collar is locked on the shaft such that when the guide flange abuts the open end of the pipe, the rotary cutting blade will be at a desired level.

摘要翻译： 一种新的内部管道切割机，用于提供一种切割工具，设计用于通过管道一端的开口从管道内部切割管道的壁。 本发明的装置包括细长轴，其具有适于连接到旋转动力工具的上端和可垂直安装旋转切割刀片的下端。 套圈可滑动地安装在轴上并且可沿着轴可调节地定位。 夹紧套筒设置在组合套环的周围，并且可滑动地和可旋转地安装在轴上，由此夹紧套筒和组合套环沿着轴可以联合地定位，并且由此轴和组合套环独立于夹紧套筒共同旋转。 夹紧套筒在其下端包括导向凸缘，其中当旋转切割刀片在管道内部盘旋时，引导凸缘邻接管道的开口端。 因此，套圈被锁定在轴上，使得当导向凸缘邻接管的开口端时，旋转切割刀片将处于期望的水平。