专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06973828B2 Liquid level sensor 失效
标题翻译：液位传感器
公开(公告)号：US06973828B2
公开(公告)日：2005-12-13
申请号：US11016514
申请日：2004-12-17
申请人： Bernd D. Zimmermann , David Reynolds , Richard L. Gerich
发明人： Bernd D. Zimmermann , David Reynolds , Richard L. Gerich
IPC分类号： G01F15/02 , G01F23/24 , G01F23/22
CPC分类号： G01F15/022 , G01F23/246
摘要： An improved liquid level sensor is disclosed which provides a reliable and simple device for accurately determining the level of a liquid within a vessel. The sensor utilizes a plurality of thermocouple junctions grouped in pairs with the pairs being spaced along a line extending generally in the direction in which the liquid level may vary. A first thermocouple junction of each pair is located in relatively close thermal proximity to an electrically powered heater and the second of each pair of thermocouple junctions is spaced away from the heater. The thermocouple junctions are connected in series and produce a signal indicative of the level of liquid along the sensor. Alternatively, a single threshold liquid level sensor is provided for use with a hermetic interface to provide a signal to indicate a level of liquid within a container. Additionally, a pressure sensing circuit may also be incorporated with either liquid level sensor.
摘要翻译：公开了一种改进的液面传感器，其提供用于精确地确定容器内的液体的水平的可靠和简单的装置。传感器利用成对分组的多个热电偶接头，其中对对沿着大致沿液面可能变化的方向延伸的线间隔开。每一对的第一热电偶结点位于相对靠近电加热器的热接近处，并且每对热电偶接头中的第二个与加热器间隔开。热电偶接头串联连接并产生一个指示传感器液体水平的信号。或者，提供单个阈值液位传感器用于密封界面以提供信号以指示容器内的液体水平。此外，压力感测电路也可以与液位传感器结合。

2. 发明授权

US06862932B2 Liquid level sensor 失效
公开(公告)号：US06862932B2
公开(公告)日：2005-03-08
申请号：US10402261
申请日：2003-03-28
申请人： Bernd D. Zimmermann , David Reynolds , Richard L. Gerich
发明人： Bernd D. Zimmermann , David Reynolds , Richard L. Gerich
IPC分类号： G01F15/02 , G01F23/24 , G01F23/00
CPC分类号： G01F15/022 , G01F23/246
摘要： An improved liquid level sensor is disclosed which provides a reliable and simple device for accurately determining the level of a liquid within a vessel. The sensor utilizes a plurality of thermocouple junctions grouped in pairs with the pairs being spaced along a line extending generally in the direction in which the liquid level may vary. A first thermocouple junction of each pair is located in relatively close thermal proximity to an electrically powered heater and the second of each pair of thermocouple junctions is spaced away from the heater. The thermocouple junctions are connected in series and produce a signal indicative of the level of liquid along the sensor. Alternatively, a single threshold liquid level sensor is provided for use with a hermetic interface to provide a signal to indicate a level of liquid within a container. Additionally, a pressure sensing circuit may also be incorporated with either liquid level sensor.

3. 发明授权

US06584940B1 Flue pipe control 失效
标题翻译：烟管控制
公开(公告)号：US06584940B1
公开(公告)日：2003-07-01
申请号：US10042984
申请日：2002-01-09
申请人： Prasad S. Khadkikar , Richard L. Gerich , Christine M. Hudson , Jeffrey A. West , Derek J. Rose , Douglas J. Kempf , Douglas E. Prather , Richard E. Welch
发明人： Prasad S. Khadkikar , Richard L. Gerich , Christine M. Hudson , Jeffrey A. West , Derek J. Rose , Douglas J. Kempf , Douglas E. Prather , Richard E. Welch
IPC分类号： F24H140
CPC分类号： F23M9/003 , F24H1/205 , F24H9/0026
摘要： An improved flue pipe construction particularly adapted for a fuel fired water heater is disclosed which serves to reduce or minimize heat loss when the water heater is in a standby mode. The flue pipe construction comprises inner and outer concentric flue pipes which define an air space therebetween and one or more valve arrangements associated therewith to selectively restrict air flow through such air space. The valve arrangements include a thermally responsive actuator operative to open and close the valve member in response to heat generated by firing of the burner assembly without the need for any external power supply or interlocks.
摘要翻译：公开了一种特别适用于燃料热水器的改进的烟道管结构，其用于在热水器处于待机模式时减少或最小化热损失。烟道管构造包括内部和外部同心烟道管，其在其间限定空气空间，以及与其相关联的一个或多个阀装置，以选择性地限制通过这种空气空间的气流。阀装置包括一个热响应致动器，用于响应于通过燃烧器组件的点火而产生的热而打开和关闭阀构件，而不需要任何外部电源或互锁。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式