公开(公告)号：US5622672A

公开(公告)日：1997-04-22

申请号：US410070

申请日：1995-03-24

申请人： Robert H. Swick ,  Russell H. C. Howe-Smith ,  David P. Dillard ,  L. Stephen Bowers

发明人： Robert H. Swick ,  Russell H. C. Howe-Smith ,  David P. Dillard ,  L. Stephen Bowers

IPC分类号： B23K7/00 ,  E21B7/14 ,  F23Q13/00

CPC分类号： E21B7/146 ,  F23B7/00 ,  F23Q13/00

摘要： Solid-fueled torches, wherein the metallic material of a thermal lance provides the solid fuel for the torch flame, are ignited by a substantially self-contained igniter not requiring any source of electrical energy. These torches are particularly well-suited for specialized types of manual on-site cutting or welding. The igniter is designed to be activated by sudden exposure of a pyrophoric material (disposed within the sealed interior of the igniter) to a flow of substantially pure oxygen. The igniter can be either pre-attached to an ignitable tip of the thermal lance, followed by activation (the oxygen gas flows through the interior of the lance), or simply placed on a firm surface so that an ignitable tip of the thermal lance can be used to break the seal on the igniter and thereby introduce the flow of oxygen into the interior of the igniter.

摘要翻译： 固体燃料火炬，其中热喷枪的金属材料为火炬火焰提供固体燃料，被不需要任何电能源的基本上独立的点火器点燃。 这些手电筒特别适用于专门类型的手动现场切割或焊接。 点火器设计为通过将自燃材料（设置在点火器的密封内部）突然暴露于基本上纯的氧气流而被激活。 点火器可以预先连接到热喷枪的可点燃的尖端，随后激活（氧气流过喷枪的内部），或者简单地放置在牢固的表面上，使得热喷枪的可点燃的尖端可以 用于打破点火器上的密封，从而将氧气流引入点火器的内部。