公开(公告)号：US08505926B2

公开(公告)日：2013-08-13

申请号：US12722109

申请日：2010-03-11

申请人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

发明人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

IPC分类号： F16J15/32

CPC分类号： F16J15/025

摘要： A shaft seal assembly includes a metal case having a wall extending cylindrically about a central axis with an annular leg extending radially inwardly from the wall toward the central axis. An elastomeric material is bonded to the leg, and a PTFE seal element is attached to the elastomeric material at a bond joint. The bond joint is spaced radially inwardly from the leg and in radial alignment with the leg and inhibits the elastomeric material from flexing. As such, the elastomeric material is isolated or substantially isolated from impacting the performance of the PTFE seal element during use. Accordingly, the bond joint provides a reliable seal of the PTFE seal element against a running surface of a shaft or wear sleeve.

摘要翻译： 轴密封组件包括金属壳体，其具有围绕中心轴线圆柱形延伸的壁，其中环形腿从壁向中心轴线径向向内延伸。 弹性体材料结合到腿上，并且在密封接头处将PTFE密封元件附接到弹性体材料。 接合接头从腿部向内径向间隔开并且与腿部径向对准并且阻止弹性体材料弯曲。 因此，弹性体材料被隔离或基本隔离，以免在使用期间影响PTFE密封元件的性能。 因此，接合接头提供了PTFE密封件相对于轴或磨损套筒的运行表面的可靠的密封。

公开(公告)号：US5326111A

公开(公告)日：1994-07-05

申请号：US956816

申请日：1992-10-05

申请人： Frederick R. Hatch

发明人： Frederick R. Hatch

IPC分类号： F16J15/32

CPC分类号： F16J15/3228

摘要： A shaft seal includes an annular rigid seal case insertable into a cylindrical bore in a seal housing. The joint between the seal case and the bore is sealed by an annular resilient sleeve stretched over the outer surface of the case. The sleeve is initially formed as a thin flat annular elastomeric disk by a low cost molding or slicing operation. Installation of the sealing element on the seal case is accomplished by stretching the disk radially and then turning it angularly from a radial disk orientation to an axial sleeve configuration.

摘要翻译： 轴封包括可插入到密封壳体中的圆柱形孔中的环形刚性密封壳体。 密封壳体和孔之间的接合体由在壳体的外表面上延伸的环形弹性套筒密封。 通过低成本模制或切片操作，套筒最初形成为薄平的环形弹性体盘。 将密封元件安装在密封壳体上的方法是通过径向拉伸该圆盘，然后将其从径向盘方向成角度地转动到轴向套筒构型来实现。

公开(公告)号：US08459654B2

公开(公告)日：2013-06-11

申请号：US13099474

申请日：2011-05-03

申请人： Frederick R. Hatch ,  David M. Toth

发明人： Frederick R. Hatch ,  David M. Toth

IPC分类号： F16J15/32 ,  F16J15/34

CPC分类号： F16J15/3264 ,  F16J15/3228 ,  F16J15/3232 ,  F16J15/3244 ,  F16J15/3456 ,  Y10T29/4998

摘要： A hydrodynamic shaft seal assembly includes a PTFE seal member having outer and inner sections. The outer section is affixed to an annular carrier. The inner section is free and includes at least one hydrodynamic groove in direct running contact with a rotating shaft or wear sleeve. A mid-portion of the seal member is formed between the inner and outer sections. The mid-portion is thinned and includes one or more annular undulations formed therein to improve flexibility of the inner section relative to the outer section. The seal assembly may include one or more excluder features. A rubber casing is molded about portions of the carrier. Preferably, one or more annular undulations are formed in a coining operation during the rubber molding process.

摘要翻译： 流体动力轴密封组件包括具有外部和内部部分的PTFE密封件。 外部部分固定在环形载体上。 内部部分是自由的，并且包括至少一个与旋转轴或磨损套筒直接接触的流体动力槽。 密封构件的中间部分形成在内部和外部之间。 中间部分变薄并且包括形成在其中的一个或多个环形起伏以改善内部部分相对于外部部分的柔性。 密封组件可以包括一个或多个排除器特征。 围绕载体的一部分模制橡胶外壳。 优选地，在橡胶模制过程中，在压印操作中形成一个或多个环形起伏。

公开(公告)号：US20130042674A1

公开(公告)日：2013-02-21

申请号：US13211550

申请日：2011-08-17

申请人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

发明人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

IPC分类号： G01M15/08 ,  B23P17/00

CPC分类号： F16J15/064 ,  F02B77/085 ,  F02F11/002 ,  F16J15/0818 ,  Y10T29/49968

摘要： A compression sensor gasket assembly includes a gasket body and a pressure sensor assembly having a sensor tip and an externally threaded portion. The gasket body has opposite sides extending between an opening configured to register with a cylinder bore of an internal combustion engine and an outer periphery. A notch extends into the outer periphery to a recessed surface. A sensor receptacle configured for at least partial receipt of the pressure sensor assembly extends from the recessed surface to the opening. A nut is disposed in the notch with internal threads of the nut being aligned for threaded engagement with the externally threaded portion of the pressure sensor assembly. The nut has bifurcated fingers extending laterally outwardly from an outer surface. The bifurcated fingers have inner surfaces bonded to at least one of the opposite sides of the gasket body to facilitate proper orientation of the pressure sensor assembly.

摘要翻译： 压缩传感器垫圈组件包括垫圈体和具有传感器尖端和外螺纹部分的压力传感器组件。 垫圈主体具有在构造成与内燃机的缸孔对准的开口和外周之间延伸的相对侧。 凹口向外周延伸到凹陷表面。 构造成用于至少部分地接收压力传感器组件的传感器插座从凹入表面延伸到开口。 螺母设置在凹口中，螺母的内螺纹对准以与压力传感器组件的外螺纹部分螺纹接合。 螺母具有从外表面横向向外延伸的分叉指状物。 分叉的指状物具有结合到垫片主体的至少一个相对侧的内表面，以便于压力传感器组件的正确取向。

公开(公告)号：US20120280457A1

公开(公告)日：2012-11-08

申请号：US13099474

申请日：2011-05-03

申请人： Frederick R. Hatch ,  David M. Toth

发明人： Frederick R. Hatch ,  David M. Toth

IPC分类号： F16J15/40 ,  B23P17/04

CPC分类号： F16J15/3264 ,  F16J15/3228 ,  F16J15/3232 ,  F16J15/3244 ,  F16J15/3456 ,  Y10T29/4998

摘要： A hydrodynamic shaft seal assembly includes a PTFE seal member having outer and inner sections. The outer section is affixed to an annular carrier. The inner section is free and includes at least one hydrodynamic groove in direct running contact with a rotating shaft or wear sleeve. A mid-portion of the seal member is formed between the inner and outer sections. The mid-portion is thinned and includes one or more annular undulations formed therein to improve flexibility of the inner section relative to the outer section. The seal assembly may include one or more excluder features. A rubber casing is molded about portions of the carrier. Preferably, one or more annular undulations are formed in a coining operation during the rubber molding process.

摘要翻译： 流体动力轴密封组件包括具有外部和内部部分的PTFE密封件。 外部部分固定在环形载体上。 内部部分是自由的，并且包括至少一个与旋转轴或磨损套筒直接接触的流体动力槽。 密封构件的中间部分形成在内部和外部之间。 中间部分变薄并且包括形成在其中的一个或多个环形起伏以改善内部部分相对于外部部分的柔性。 密封组件可以包括一个或多个排除器特征。 围绕载体的一部分模制橡胶外壳。 优选地，在橡胶模制过程中，在压印操作中形成一个或多个环形起伏。

公开(公告)号：US20110221143A1

公开(公告)日：2011-09-15

申请号：US12722109

申请日：2010-03-11

申请人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

发明人： David M. Toth ,  Frederick R. Hatch ,  Brent Sedlar

IPC分类号： F16J15/32

CPC分类号： F16J15/025

摘要： A shaft seal assembly includes a metal case having a wall extending cylindrically about a central axis with an annular leg extending radially inwardly from the wall toward the central axis. An elastomeric material is bonded to the leg, and a PTFE seal element is attached to the elastomeric material at a bond joint. The bond joint is spaced radially inwardly from the leg and in radial alignment with the leg and inhibits the elastomeric material from flexing. As such, the elastomeric material is isolated or substantially isolated from impacting the performance of the PTFE seal element during use. Accordingly, the bond joint provides a reliable seal of the PTFE seal element against a running surface of a shaft or wear sleeve.

摘要翻译： 轴密封组件包括金属壳体，其具有围绕中心轴线圆柱形延伸的壁，其中环形腿从壁向中心轴线径向向内延伸。 弹性体材料结合到腿上，并且在密封接头处将PTFE密封元件附接到弹性体材料。 接合接头从腿部向内径向间隔开并且与腿部径向对准并且阻止弹性体材料弯曲。 因此，弹性体材料被隔离或基本隔离，以免在使用期间影响PTFE密封元件的性能。 因此，接合接头提供了PTFE密封件相对于轴或磨损套筒的运行表面的可靠的密封。

公开(公告)号：US08573602B2

公开(公告)日：2013-11-05

申请号：US13215528

申请日：2011-08-23

申请人： Andrew Payne ,  Brent R. Sedlar ,  David M. Toth ,  Frederick R. Hatch

发明人： Andrew Payne ,  Brent R. Sedlar ,  David M. Toth ,  Frederick R. Hatch

IPC分类号： F16J15/32

CPC分类号： F16J15/3224 ,  F16J15/3244

摘要： A radial shaft seal configured for receipt in a housing and about a shaft to sealingly isolate an air-side of the shaft seal from an oil-side of the shaft seal is provided. The seal includes an annular mounting portion and a seal lip operably attached to the mounting portion. The seal lip has an annular inner sealing surface extending axially between an oil-side end and a free air-side end. The inner sealing surface has a first groove region extending along the shaft in sealed engagement therewith and a second groove region extending along the shaft in sealed engagement therewith. The first groove region and the second groove region are spaced axially from one another by an intermediate non-grooved region. The first groove region is configured to direct contamination toward the air-side of the seal and the second groove region is configured to direct lubrication toward the oil-side of the seal.

摘要翻译： 提供了一种径向轴密封件，其构造成用于容纳在壳体中并且围绕轴，以将轴封的空气侧与轴封的油侧密封隔离。 密封件包括可操作地附接到安装部分的环形安装部分和密封唇缘。 密封唇缘具有在油侧端部和自由空气侧端部之间轴向延伸的环形内部密封表面。 内部密封表面具有沿着轴与密封接合的第一槽区域和沿着轴密封接合的第二槽区域。 第一凹槽区域和第二凹槽区域通过中间非凹槽区域彼此轴向隔开。 第一槽区域构造成将污染物引导到密封件的空气侧，并且第二槽区域构造成朝向密封件的油侧引导润滑。

公开(公告)号：US08029714B2

公开(公告)日：2011-10-04

申请号：US11774233

申请日：2007-07-06

申请人： Frederick R. Hatch

发明人： Frederick R. Hatch

IPC分类号： B32B37/02 ,  B29C43/18 ,  F01C19/00 ,  F17J15/32

CPC分类号： F16J15/3244 ,  F16J15/3284 ,  Y10T29/49297

摘要： A method of manufacturing a radial shaft seal assembly. The method includes the step of stretching an inner diameter of a ring-shaped polytetrafluoroethylene seal radially outward from an axis with a mandrel to a first stretched condition on a mold core element. The method also includes the step of defining a substantially enclosed mold cavity around the polytetrafluoroethylene seal stretched over the mold core element with at least one mold element. The method also includes the step of locating a rigid casing within the mold cavity spaced from the stretched polytetrafluoroethylene seal. The method also includes the step of introducing a liquefied rubber elastomer into the mold cavity. The method also includes the step of molding the liquefied rubber elastomer under heat and pressure such that the rigid casing and polytetrafluoroethylene seal in a stretched state are bonded to a solid rubber elastomer member. The method also includes the step of removing the collectively bonded polytetrafluoroethylene seal and rigid casing and rubber elastomer member from the mold core element without stretching the inner diameter of the polytetrafluoroethylene seal beyond the first stretched condition.

摘要翻译： 径向轴封组件的制造方法。 该方法包括将环状聚四氟乙烯密封件的内径从芯轴径向向外拉伸到模芯元件上的第一拉伸状态的步骤。 该方法还包括在具有至少一个模具元件的模芯元件上延伸的聚四氟乙烯密封件周围限定基本封闭的模腔的步骤。 该方法还包括将刚性壳体定位在与延伸的聚四氟乙烯密封件间隔开的模具腔内的步骤。 该方法还包括将液化橡胶弹性体引入模腔中的步骤。 该方法还包括在热和压力下成型液化橡胶弹性体的步骤，使得处于拉伸状态的刚性壳体和聚四氟乙烯密封件结合到固体橡胶弹性体构件。 该方法还包括从模芯元件除去共同结合的聚四氟乙烯密封件和刚性外壳和橡胶弹性体元件而不将聚四氟乙烯密封件的内径拉伸超过第一拉伸条件的步骤。

公开(公告)号：US20090309261A1

公开(公告)日：2009-12-17

申请号：US12482562

申请日：2009-06-11

申请人： Frederick R. Hatch

发明人： Frederick R. Hatch

IPC分类号： B29C45/14 ,  C08J5/12

CPC分类号： B29C45/14614 ,  B29C45/14467 ,  F16J15/3228 ,  F16J15/328 ,  F16J15/3284 ,  Y10S264/67 ,  Y10S425/047

摘要： A method of constructing a shaft seal assembly includes attaching a PTFE seal element to an outer metal case and disposing a bore of the PTFE seal element onto a mandrel. Then, heating the PTFE seal element while on the mandrel. Further, cooling the PTFE seal element while on the mandrel and, removing the shaft seal assembly from the mandrel. The resulting seal element provides a reliable seal against a running surface of a shaft in use, while at the same time producing low running torque against the running surface of the shaft. Further, a minimal axial push force is required to install the shaft seal assembly onto the shaft, thereby reducing the potential of damage to the seal element or inversion of the seal element during installation.

摘要翻译： 构造轴密封组件的方法包括将PTFE密封元件附接到外部金属壳体并将PTFE密封元件的孔设置在心轴上。 然后，在心轴上加热PTFE密封元件。 此外，在心轴上冷却PTFE密封元件，并且将轴密封组件从心轴移除。 所产生的密封元件在使用中提供了对轴的运行表面的可靠密封，同时产生相对于轴的运行表面的低运行扭矩。 此外，需要最小的轴向推力来将轴密封组件安装到轴上，从而减少在安装期间密封元件的损坏或密封元件反转的可能性。

公开(公告)号：US5052696A

公开(公告)日：1991-10-01

申请号：US604703

申请日：1990-10-26

申请人： Frederick R. Hatch

发明人： Frederick R. Hatch

IPC分类号： F16J15/32

CPC分类号： F16J15/3232

摘要： A shaft seal having a thin radial section is adapted for mounting within a small radial annular clearance space between a housing and a shaft. An elastomeric sealing member is bonded to an axially inner portion of the seal and a polytetrafluoroethylene sealing member is clamped to an axially outer portion of the seal.

摘要翻译： 具有薄的径向部分的轴封适于安装在壳体和轴之间的小径向环形间隙空间内。 弹性体密封构件结合到密封件的轴向内部，并且聚四氟乙烯密封构件被夹紧到密封件的轴向外部。