公开(公告)号：US4546895A

公开(公告)日：1985-10-15

申请号：US616567

申请日：1984-05-31

Applicant: Fred R. Pflederer

Inventor： Fred R. Pflederer

IPC: F17C1/00 ,  B01J3/04 ,  B65D53/02

CPC classification number: B01J3/048

Abstract: An orthotropic pressure vessel (2) is provided by a cylindrical filament wound body (4) having open ends, a pair of end plates (8, 10) sealingly disposed at the open ends of the body, and one or more axial continuous endless loops (18) engaging the end plates and maintaining them in position when the vessel is filled with a fluid under pressure. Hoop to axial stress ratios greater than or equal to about 15:1, and helix angles less than or equal to about 15.degree., are provided. One end plate is stationary, and the other is axially slideable along the inner wall of the cylindrical body. Exterior and interior loop bound versions are disclosed. Various end plates and body end designs are disclosed for increased loop life, uniform force distribution for lighter and thinner end plates, and pressurized axial loading of the vessel wall.

Abstract translation: 正交各向异性压力容器（2）由具有开口端的圆柱形灯丝缠绕体（4）提供，密封地设置在主体的开口端处的一对端板（8,10）和一个或多个轴向连续无端环 （18）接合端板并且当容器中充满压力的流体时将它们保持在适当的位置。 环到轴向应力比大于或等于约15:1，螺旋角小于或等于约15°。 一个端板是静止的，另一个端板沿圆柱体的内壁轴向滑动。 公开了外部和内部环路限制版本。 公开了各种端板和本体端设计，以提高循环寿命，对于较轻和较薄的端板的均匀的力分布以及容器壁的加压的轴向负载。

公开(公告)号：US4391301A

公开(公告)日：1983-07-05

申请号：US296809

申请日：1981-08-27

Applicant: Fred R. Pflederer

Inventor： Fred R. Pflederer

IPC: B29C53/60 ,  B65D90/02 ,  F16L9/16

CPC classification number: B29C53/605 ,  B65D90/029 ,  Y10S138/02

Abstract: A filament wound structural vessel includes a cylindrical wall formed of a cured thermosetting resin reinforced by fibrous material. An opening in the wall is reinforced by a series of reinforcement bands formed by filament windings that encircle the wall and run adjacent the opening.

Abstract translation: 长丝缠绕结构容器包括由纤维材料增强的固化的热固性树脂形成的圆柱形壁。 墙壁上的一个开口被一系列由围绕壁并围绕开口运行的细丝绕组形成的加强带增强。

公开(公告)号：US4732371A

公开(公告)日：1988-03-22

申请号：US75233

申请日：1987-07-17

Applicant: Fred R. Pflederer

Inventor： Fred R. Pflederer

IPC: B60G11/113 ,  F16F1/368 ,  B60G11/02 ,  F16F1/36

CPC classification number: F16F1/3683 ,  B60G11/113

Abstract: An axle mount construction for a fiber reinforced resin leaf spring. The central section of the molded fiber reinforced resin spring that is adapted to be secured to an axle of a vehicle is molded with alternate longitudinally extending ridges and grooves with the ridges on one surface of the central section being vertically aligned with grooves on the opposite surface. The outer extremities of the ridges define flat lands, and a clamping mechanism secured the central section of the spring to the axle and includes clamping plates which are engaged with the lands on the ridges. The ridge and groove construction provides added section stiffness to the mounting area of the spring to reduce stress concentrations in the spring under load.

Abstract translation: 用于纤维增强树脂板簧的轴安装结构。 模制的纤维增强树脂弹簧的中心部分适于固定在车辆的车轴上，模制成具有交替的纵向延伸的脊和凹槽，其中中心部分的一个表面上的脊部与相对表面上的凹槽垂直对齐 。 脊的外端限定平坦的平台，并且夹紧机构将弹簧的中心部分固定到轴上，并且包括与脊部的接合部接合的夹紧板。 脊和槽结构为弹簧的安装区域增加了截面刚度，以减少负载下弹簧中的应力集中。

公开(公告)号：US4556204A

公开(公告)日：1985-12-03

申请号：US643708

申请日：1984-08-24

Applicant: Fred R. Pflederer

Inventor： Fred R. Pflederer

IPC: F16F1/18 ,  F16F1/368

CPC classification number: F16F1/3686

Abstract: A fiber reinforced resin leaf spring including a curved central section and a pair of generally circular end sections connected to the respective ends of the central section. Each end section defines an opening to receive a connecting member. The spring is wound from an endless strand of substantially continuous fibers impregnated with a cured thermosetting resin. A plurality of longitudinally extending ribs are formed in the neck region of the spring, which joins the curved central section to the respective end sections. The ribs, which extend alternately upwardly and downwardly from a plane extending through the neutral axis of the spring, increase the stiffness of the spring in the neck region and prevent delamination of the fibrous windings during service.

Abstract translation: 一种纤维增强树脂板簧，包括弯曲的中心部分和连接到中心部分的相应端部的一对大致圆形的端部部分。 每个端部部分限定用于接收连接构件的开口。 弹簧由浸渍有固化的热固性树脂的基本上连续的纤维的环形绳缠绕。 多个纵向延伸的肋条形成在弹簧的颈部区域中，其将弯曲的中心部分连接到相应的端部部分。 从延伸穿过弹簧的中性轴的平面交替地向上和向下延伸的肋增加了颈部区域中弹簧的刚度，并防止了在使用过程中纤维绕组的分层。