公开(公告)号：US4820235A

公开(公告)日：1989-04-11

申请号：US78875

申请日：1987-07-28

申请人： David Weber ,  Stanley Marchewka

发明人： David Weber ,  Stanley Marchewka

IPC分类号： F16B39/282

CPC分类号： F16B39/282 ,  Y10S411/959

摘要： An improved threaded fastener is provided with a shank, a head connected to the shank, and a thread form on the shank terminating below the head. A plurality of lugs are provided above at least a portion of the thread form and are circumferentially disposed under the fastener head around the shank seriatim from a first lug to a last lug. Each lug defines an exposed engaging margin extending from the fastener shank at an acute angle relative to the longitudinal axis of the fastener. The maximum radial dimension of each lug progressively increases from the first lug to the last lug while a corresponding maximum axial dimension of each lug progressively decreases whereby the acute angle becomes progressively greater.

摘要翻译： 改进的螺纹紧固件设置有柄，连接到柄的头部，以及在头部终止的柄上的螺纹形式。 多个凸耳设置在螺纹形式的至少一部分上方，并且周向地设置在紧固件头部周围，该连接头围绕从第一凸耳到最后一个凸耳的连杆。 每个凸耳限定了从紧固件柄以相对于紧固件的纵向轴线成锐角延伸的暴露的接合边缘。 每个凸耳的最大径向尺寸从第一凸耳逐渐增加到最后的凸耳，而每个凸耳的对应的最大轴向尺寸逐渐减小，由此锐角逐渐变大。

公开(公告)号：US06688148B1

公开(公告)日：2004-02-10

申请号：US10056628

申请日：2002-01-25

申请人： Raymond C. Hartzell ,  Jeffrey A. Buck ,  Stanley Marchewka

发明人： Raymond C. Hartzell ,  Jeffrey A. Buck ,  Stanley Marchewka

IPC分类号： B21B4502

CPC分类号： B21J5/02 ,  B21J1/06 ,  B21J3/00 ,  B21K1/00 ,  B21K21/08 ,  C21D7/10 ,  C21D8/06

摘要： A method of making high carbon content steel engine components is disclosed. The method includes pre-processing a supply wire of high strength steel having a spheroidized carbide microstructure and high-strength mechanical properties, applying a lubricant on the surface of the supply wire, and cold-forming the blank to substantially reduce or eliminate the need for any additional surface grinding operations.

摘要翻译： 公开了一种制造高碳含量钢发动机部件的方法。 该方法包括对具有球化碳化物微观结构和高强度机械性能的高强度钢的供应丝进行预处理，在供应丝的表面上施加润滑剂，并且冷成型坯料以显着减少或消除对 任何额外的表面磨削操作。