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公开(公告)号：US5834651A
公开(公告)日：1998-11-10
申请号：US638343
申请日：1996-04-26
CPC分类号： G01L7/041 , B21D11/06 , B21D53/886 , C21D8/105
摘要： In general, the invention features a spring assembly for a gauge with a hollow metal tube that changes in volume in response to differential pressures applied across the walls. The tube has a neck connected to a fitting of the gauge, a body connected at one end to the neck with its other end sealed, and at least a portion of the walls of the body being flattened and cold worked to a reduced thickness to thereby increase their yield point to a spring temper. The body is coiled into a spiral or helix. The coiled tube is heat treated to increase its elasticity. The interior of the neck is in pressure communication with the fitting, and the interior of the body is in pressure communication through its unsealed end with the interior of the neck, whereby a change in the pressure applied to the fitting is communicated along the interior of the body changing the differential pressure across the walls of the body to cause a corresponding change in the volume.
摘要翻译： 通常，本发明的特征在于用于具有中空金属管的量规的弹簧组件，其响应于施加在壁上的压差而改变体积。 管具有连接到量规的配件的颈部，其一端连接到颈部并且其另一端被密封的主体，并且主体的壁的至少一部分被平坦化并且冷加工成减小的厚度，由此 增加他们的屈服点到春天的脾气。 身体卷成螺旋或螺旋。 卷取管被热处理以增加其弹性。 颈部的内部与配件压力连通，并且身体的内部通过其未密封的端部与颈部的内部压力连通，由此施加到配件的压力的变化沿着内部 身体改变穿过身体壁的差压，从而引起相应的体积变化。
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公开(公告)号：US5076966A
公开(公告)日：1991-12-31
申请号：US548502
申请日：1990-07-02
申请人： Joseph T. Marone
发明人： Joseph T. Marone
IPC分类号： G01N33/00
CPC分类号： G01N33/0006
摘要： A composition comprising a polyhydroxy alcohol and a water soluble solvent alcohol having a boiling temperature less than 100.degree. C. and a method for dispensing the composition by way of an aerosol spray can is operative for testing smoke detectors of both the ionization and photoelectric type.
摘要翻译： 包含多羟基醇和沸点低于100℃的水溶性溶剂醇的组合物以及通过气溶胶喷雾罐分配组合物的方法可用于测试电离和光电型烟雾检测器。
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