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    Thermostatic control for electric roof heating cable
    1.
    发明授权
    Thermostatic control for electric roof heating cable 失效
    电屋顶加热电缆恒温控制

    公开(公告)号：US4335299A

    公开(公告)日：1982-06-15

    申请号：US191919

    申请日：1980-09-29

    申请人： James F. Belohlavek

    发明人： James F. Belohlavek

    IPC分类号： H01H37/56 ,  H05B1/02

    CPC分类号： H05B1/0283 ,  H01H37/56

    摘要： A thermostatic control for electric cables used on overhanging eaves of pitched roofs in northern climates, and in rain gutters and downspouts, comprises a high temperature-limit switch and a low temperature-limit switch connected in series circuit for controlling energization to a narrow temperature range extending from the freezing temperature of water to several degrees colder. Above-freezing temperatures will melt ice and snow without supplemental heating, and sufficiently colder temperatures will not be raised sufficiently by heat loss through a building roof to thaw ice and snow accumulation on the roof and provide run-off water to the unheated eave, rain gutter and downspout where freezing can occur and result in the formation of an ice dam which will block drainage of further run-off water and which may grow in size to cause water to back-up and seep under roofing shingles to leak through the roof.

    摘要翻译： 用于悬挂北部气候屋顶屋顶的电缆以及雨水沟和下水道中的电缆的恒温控制包括一个高温限位开关和一个连接在串联电路中的低温限位开关，用于控制通向较窄温度范围的通电 从水的冷冻温度延伸到几度较冷。 高温下会在没有补充加热的情况下融化冰雪，并且通过建筑屋顶的热量损失不能充分地提高足够的温度，以解冻屋顶上积聚的冰雪积雪，并向未加热的檐篷，雨水 可以发生冻结的沟槽和下水道，并导致形成一个冰坝，这将阻止进一步流出的水的排水，并且其大小可能会增长，导致水被备用，并在屋顶瓦片下渗漏以通过屋顶泄漏。

    Thermostat and method of operating
    2.
    发明授权
    Thermostat and method of operating 失效
    恒温器和操作方法

    公开(公告)号：US4243967A

    公开(公告)日：1981-01-06

    申请号：US5236

    申请日：1979-01-22

    申请人： James P. Frank

    发明人： James P. Frank

    IPC分类号： H01H37/12 ,  H01H37/56 ,  H01H37/52

    CPC分类号： H01H37/12 ,  H01H37/56 ,  Y10T74/20213

    摘要： A thermostat adapted to regulate the temperature of a given space. The thermostat has a temperature setting lever movable between a plurality of temperature settings within a pair of temperature ranges and also a mode selecting lever movable between a heating position, an off position and a cooling position. Means respectively associated with the temperature setting lever and the mode selecting lever is provided to effect the movement of the mode selecting lever from one of the heating position and cooling position thereof through its off position to the other of the heating position and cooling position thereof in response to the movement of the temperature setting lever from one of its temperature settings of the plurality thereof within one of the temperature ranges toward another of its temperature settings within the other of the temperature ranges.A method of operating a thermostat is also disclosed.

    摘要翻译： 适用于调节给定空间温度的恒温器。 恒温器具有可在一对温度范围内的多个温度设置之间移动的温度设定杆，以及可在加热位置，关闭位置和冷却位置之间移动的模式选择杆。 提供分别与温度设定杆和模式选择杆相关联的装置，以使模式选择杆从其加热位置和冷却位置之一通过其关闭位置移动到另一个加热位置和冷却位置 响应温度设定杆从其多个温度设置中的一个温度设置中的一个在一个温度范围内的温度范围内另一个温度设置。 还公开了一种操作恒温器的方法。