公开(公告)号：US3997098A

公开(公告)日：1976-12-14

申请号：US568771

申请日：1975-04-23

Applicant: Louis B. Van Petten

Inventor： Louis B. Van Petten

IPC: B21C37/06 ,  B01D39/00 ,  B21C37/12 ,  B21C37/15 ,  B21C37/083

CPC classification number: B21C37/157 ,  B21C37/12 ,  Y10T29/49382

Abstract: A thin perforate, helically wound welded edge tubing is used as a filter core for a roving wound filter. The slightly roughened external edges of the spirally formed welded joint greatly adds to the ability of securing the fiber roving to the tube and prevents relative slippage therebetween. Also, the invention comprehends an apparatus for, and a method of making the helically seamed tube by first drawing a sheet metal from a supply and raising two lateral edges thereof to form flanges. The material can be guided in a helical path by engaging the inside of the flanges so that the trailing edge abuts the leading edge. The abutted edges are heated so that the flanges themselves provide the filler for a weld on the exterior surface thereof. Drive rollers are provided to move the welded tube from the welding area and to torque the tube to prevent edge separation prior to the cooling of the weld.

Abstract translation: 使用薄的穿孔螺旋缠绕的焊接边缘管作为粗纱缠绕过滤器的过滤芯。 螺旋形焊接接头的略微粗糙的外部边缘大大增加了将纤维粗纱固定到管上并防止其间的相对滑动的能力。 此外，本发明还包括一种用于制造螺旋缝合管的装置，以及通过从供应器中拉出金属板并提升其两个侧边以形成凸缘的方法。 该材料可以通过接合凸缘的内部而以螺旋形路径被引导，使得后缘邻接前缘。 接合的边缘被加热，使得法兰本身在其外表面上提供用于焊接的填料。 提供驱动辊以使焊接管从焊接区域移动并且扭转管以防止在焊接冷却之前的边缘分离。

公开(公告)号：US4141481A

公开(公告)日：1979-02-27

申请号：US749751

申请日：1976-12-13

Applicant: Louis B. Van Petten

Inventor： Louis B. Van Petten

IPC: B21C37/12 ,  B21C37/083 ,  B23K31/06

CPC classification number: B21C37/12 ,  B21C37/157

Abstract: A thin perforate, helically wound welded edge tubing is used as a filter core for a roving wound filter. The slightly roughened external edges of the spirally formed welded joint greatly adds to the ability of securing the fiber roving to the tube and prevents relative slippage therebetween. Also, the invention comprehends an apparatus for, and a method of making the helically seamed tube by first drawing a sheet metal from a supply and raising two lateral edges thereof to form flanges. The material can be guided in a helical path by engaging the inside of the flanges so that the trailing edge abuts the leading edge. The abutted edges are heated so that the flanges themselves provide the filler for a weld on the exterior surface thereof. Drive rollers are provided to move the welded tube from the welding area and to torque the tube to prevent edge separation prior to the cooling of the weld.

Abstract translation: 使用薄的穿孔螺旋缠绕的焊接边缘管作为粗纱缠绕过滤器的过滤芯。 螺旋形焊接接头的略微粗糙的外部边缘大大增加了将纤维粗纱固定到管上并防止其间的相对滑动的能力。 此外，本发明还包括一种用于制造螺旋缝合管的装置，以及通过从供应器中拉出金属板并提升其两个侧边以形成凸缘的方法。 该材料可以通过接合凸缘的内部而以螺旋形路径被引导，使得后缘邻接前缘。 接合的边缘被加热，使得法兰本身在其外表面上提供用于焊接的填料。 提供驱动辊以使焊接管从焊接区域移动并且扭转管以防止在焊接冷却之前的边缘分离。