公开(公告)号：US4513976A

公开(公告)日：1985-04-30

申请号：US617699

申请日：1984-06-06

申请人： Gustavus A. Bentley ,  Stephen E. Nash ,  Gerald P. Pichler

发明人： Gustavus A. Bentley ,  Stephen E. Nash ,  Gerald P. Pichler

IPC分类号： F16C33/78 ,  F16J15/32 ,  F16J15/34

CPC分类号： F16C33/7826 ,  F16C33/7889 ,  F16J15/3228 ,  F16J15/3264 ,  F16C2326/02

摘要： A fluid seal for use between a stationary member and a rotating member. A rigid member mounted on the stationary member has a peripheral cylindrical portion joined to a peripheral frustoconical portion. A sealing assembly mounted on the rotating member has a supporting case and a radial flange. An elastomeric body is bonded to the flange and has, to one side of the flange, a radially outwardly projecting frustoconical auxiliary lip engaging the peripheral cylindrical portion. A main sealing lip, comprising an annular, flexible, polytetrafluoroethylene planar wafer, is bonded to the body on the other side of the flange from the auxiliary lip. This main lip extends radially outwardly, the wafer normally tending to assume a substantially radial position. One face of the wafer engages and is flexed by the frustoconical portion. The centrifugal force of the rotating member in either direction tends to urge the lips more snugly against the rigid member.

摘要翻译： 用于固定构件和旋转构件之间的流体密封件。 安装在固定构件上的刚性构件具有连接到周边截头圆锥形部分的周边圆柱形部分。 安装在旋转构件上的密封组件具有支撑壳体和径向凸缘。 弹性体结合到凸缘上，并且在凸缘的一侧具有与周边圆柱形部分接合的径向向外突出的截头圆锥形辅助唇缘。 包括环形柔性聚四氟乙烯平面晶片的主密封唇缘在凸缘的另一侧上与辅助唇缘接合。 该主唇缘径向向外延伸，晶片通常倾向于呈现基本上径向的位置。 晶片的一个表面接合并由截头圆锥形部分弯曲。 旋转构件在任一方向上的离心力趋向于更紧密地推动唇缘抵靠刚性构件。

公开(公告)号：US4907811A

公开(公告)日：1990-03-13

申请号：US372208

申请日：1989-06-26

申请人： Stephen E. Nash ,  Gerald P. Pichler

发明人： Stephen E. Nash ,  Gerald P. Pichler

IPC分类号： B25B27/00 ,  F16J15/32

CPC分类号： B25B27/0028 ,  F16J15/3268 ,  F16J15/3284 ,  Y10S277/944 ,  Y10T29/53796 ,  Y10T29/53909

摘要： A fluid seal made of elastomeric material for use between an external stationary member and a rotating internal member avoids use of a customary pressed steel case. The seal may be stretched over an external flange on a rotatable shaft and recover from the elongation to the designed dimension at which the seal is to operate within the external stationary member. A specially formulated elastomeric composition accommodates elongation during stretching in excess of 300%.

摘要翻译： 由外部固定构件和旋转内部构件之间使用的由弹性体材料制成的流体密封件避免使用常规压制钢壳体。 密封件可以在可旋转的轴上的外部凸缘上拉伸，并且可以从外部固定构件中的密封件的设计尺寸的伸长恢复。 特别配制的弹性体组合物适应拉伸过程中的伸长率超过300％。

公开(公告)号：US5009434A

公开(公告)日：1991-04-23

申请号：US481280

申请日：1990-02-20

申请人： Stephen E. Nash ,  Gerald P. Pichler

发明人： Stephen E. Nash ,  Gerald P. Pichler

IPC分类号： B25B27/00 ,  F16J15/32

CPC分类号： F16J15/3284 ,  B25B27/0028 ,  F16J15/3268 ,  Y10T29/4987

摘要： A fluid seal made of elastomeric material for use between an external stationary member and a rotating internal member avoids use of a customary pressed steel case. The seal may be stretched over an external flange on a rotatable shaft and recover from the elongation to the designed dimension at which the seal is to operate within the external stationary member. A specially formulated elastomeric composition accommodates elongation during stretching in excess of 300%.

摘要翻译： 由外部固定构件和旋转内部构件之间使用的由弹性体材料制成的流体密封件避免使用常规压制钢壳体。 密封件可以在可旋转的轴上的外部凸缘上拉伸，并且可以从外部固定构件中的密封件的设计尺寸的伸长恢复。 特别配制的弹性体组合物适应拉伸过程中的伸长率超过300％。

公开(公告)号：US4667968A

公开(公告)日：1987-05-26

申请号：US716516

申请日：1985-03-26

申请人： Stephen E. Nash ,  Gerald P. Pichler ,  David R. Brooks

发明人： Stephen E. Nash ,  Gerald P. Pichler ,  David R. Brooks

IPC分类号： F16J15/32

CPC分类号： F16J15/3264 ,  F16J15/3284

摘要： A unitized grease seal. The seal member has a one-piece metal case having a cylindrical bore-sealing portion and a radial flange, and a molded elastomeric member bonded to the metal case to provide a portion bonded to the radial flange and an outer generally cylindrical portion bonded to the surface of the bore-sealing portion and providing a series of spaced apart inwardly extending retaining portions. The elastomeric member also has two diverging lip portions with a cavity between them, one providing a grease retention lip having small spaced-apart shallow indentations enabling passage of small amounts of grease into the cavity, the other lip portion having a polytetrafluoroethylene insert bonded thereto. A one-piece metal wear sleeve member has a shaft-engaging cylindrical portion engaged by the lips and a radially outwardly extending flange with an axially inturned portion having an outer portion spaced radially inwardly from the outer generally cylindrical portion of the elastomeric member but extending radially outwardly beyond the radially inner extremities of the retaining portions. During assembly, the wear sleeve flange's inturned portion is snapped into the space between the retaining portions and the case's radial flange.

摘要翻译： 组合式润滑脂密封。 密封构件具有一体式金属壳体，其具有圆柱形孔密封部分和径向凸缘，以及模制的弹性体构件，其结合到金属壳体以提供结合到径向凸缘的部分和接合到径向凸缘的外部大致圆柱形部分 孔密封部分的表面并且提供一系列间隔开的向内延伸的保持部分。 弹性体构件还具有两个发散的唇部，在它们之间具有空腔，一个具有小的间隔开的浅凹口的润滑脂保持唇部能够将少量润滑脂通入空腔中，另一个唇部具有与其结合的聚四氟乙烯插件。 单件金属耐磨套筒构件具有与唇缘接合的轴接合的圆柱形部分和径向向外延伸的凸缘，其具有轴向折回部分，该凸缘部分具有与弹性构件的外部大致圆柱形部分径向向内间隔开的外部部分，但径向延伸 向外超过保持部分的径向内端。 在组装过程中，磨损套筒凸缘的折边部分卡入到保持部分和壳体的径向凸缘之间的空间中。

公开(公告)号：US5024364A

公开(公告)日：1991-06-18

申请号：US308920

申请日：1989-02-13

申请人： Stephen E. Nash

发明人： Stephen E. Nash

IPC分类号： F16J15/32

CPC分类号： F16J15/3228 ,  F16J15/3264 ,  Y10T29/4984 ,  Y10T29/49904 ,  Y10T29/49915

摘要： A unitized oil seal having an annular inner seal case (12) having a J-shaped cross section formed by an inner wall (24) and a first axial flange (28) interconnected by a first radial flange (26). The oil seal also has an annular outer seal case (14) having a J-shaped cross-section formed by an outer wall (40) which is connected to a second axial flange (44) by a second radial flange (42). A primary seal element (16) is secured to the second axial flange (44) and extends to the outwardly facing surface (54) of the inner wall (24). An auxiliary seal element (18) is secured to the first axial flange (28) and extends to the inwardly facing surface (38) of the outer wall (40). In one embodiment, the primary and auxiliary seal elements (16) and (18) may be cammed over radially extending lips (56) and (58) formed on the inner and outer walls (24) and (40). Separation of the inner and outer seal cases (14) and (16) is resisted by radial pressure exerted by the seal elements and the radial lips.

摘要翻译： 具有由内壁（24）形成的J形横截面的环形内密封壳（12）和通过第一径向凸缘（26）互连的第一轴向凸缘（28）的单元化油封。 油封还具有由外壁（40）形成的J形横截面的环形外密封壳体（14），外壁（40）通过第二径向凸缘（42）连接到第二轴向凸缘（44）。 主密封元件（16）固定到第二轴向凸缘（44）并延伸到内壁（24）的面向外的表面（54）。 辅助密封元件（18）固定到第一轴向凸缘（28）并延伸到外壁（40）的面向内的表面（38）。 在一个实施例中，主和辅助密封元件（16）和（18）可以在形成在内壁和外壁（24）和（40）上的径向延伸的唇缘（56）和（58）上凸轮。 内密封件​​和外密封件（14）和（16）的分离由密封元件和径向唇缘施加的径向压力抵抗。