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1. 发明授权

US4157785A Safety connection for a retrofit flue damper 失效
标题翻译：改装烟道阻尼器的安全连接
公开(公告)号：US4157785A
公开(公告)日：1979-06-12
申请号：US846946
申请日：1977-10-31
申请人： Robert A. Freliech
发明人： Robert A. Freliech
IPC分类号： F23N5/24 , F23L11/00 , F23N3/04 , F23N3/00 , G05D23/00
CPC分类号： F23N3/045 , Y10T29/49169
摘要： Apparatus and a method for assuring safe retrofit installation of a flue damper in a hot air furnace. The flue damper is electrically connected to the original furnace control circuit by engaging a flue damper connector with a portion of a printed circuit board containing part of the furnace control circuit. The physical configuration of the adapter and the printed circuit board require removal of a jumper conductor within the printed circuit board prior to connection of the adapter thereby assuring that the flue damper is correctly installed so that it will be in the open position before the furnace may be ignited.
摘要翻译：用于确保烟道阻尼器在热空气炉中安全改装安装的装置和方法。烟道阻尼器通过将烟道阻尼器连接器与包含炉控制回路的一部分的印刷电路板的一部分接合而与原始炉控制回路电连接。适配器和印刷电路板的物理配置需要在连接适配器之前去除印刷电路板中的跳线导体，从而确保烟道阻尼器被正确地安装，使得它将在炉子之前处于打开位置被点燃

2. 发明授权

US4558306A Contact monitor-annunciator 失效
标题翻译：联系监视器报警器
公开(公告)号：US4558306A
公开(公告)日：1985-12-10
申请号：US553732
申请日：1983-11-21
申请人： Robert A. Freliech
发明人： Robert A. Freliech
IPC分类号： H02P29/00 , F25B49/02 , F25D29/00 , G05F1/10 , G07C3/00 , G08B21/18 , G08B23/00
CPC分类号： F25D29/003 , G07C3/00 , G08B21/18
摘要： A contact monitor and annunciator unit for providing a persistent warning in the event one of a selected number of event monitoring circuits associated with a mobile refrigeration system opens. The unit includes a number of warning circuits that are electrically isolated from the monitoring circuits by optical isolators and a separate power supply so that the initial cause of a shut down due to abnormal operating conditions can not only be annunicated but also differenciated from a shut down caused by a momentary power failure.
摘要翻译：接触监视器和信号器单元，用于在与移动制冷系统相关联的选定数量的事件监视电路中的一个打开的情况下提供持续警告。该单元包括许多通过光隔离器与监控电路隔离的警告电路和单独的电源，使得由于异常操作条件而导致的关闭的初始原因不仅可以被通知，而且与关闭不同造成瞬间电源故障。

3. 发明授权

US4189091A Furnace having a normally closed blower relay 失效
标题翻译：具有常闭风机继电器的炉
公开(公告)号：US4189091A
公开(公告)日：1980-02-19
申请号：US846869
申请日：1977-10-31
申请人： Gary W. Ballard , Robert A. Freliech
发明人： Gary W. Ballard , Robert A. Freliech
IPC分类号： F27D19/00 , B23K3/04 , F24F11/02 , F24H9/00 , G05D23/275 , F24D5/00
CPC分类号： G05D23/275
摘要： A furnace having a burner fired heat exchanger with a flue gas passage and a heated air passage, a blower powered by an electric motor for circulating the heated air and an electric control circuit with a normally closed relay connecting the blower motor to the power source, the relay being controlled by a "Schmitt trigger" connected to a timing combination.
摘要翻译：一种具有燃烧器燃烧热交换器的燃烧器燃烧热交换器，其具有烟气通道和加热空气通道，由用于循环加热空气的电动机供电的鼓风机和具有将鼓风机马达连接到电源的常闭继电器的电控制电路，继电器由连接到定时组合的“施密特触发器”控制。

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