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公开(公告)号：US4943068A
公开(公告)日：1990-07-24
申请号：US378442
申请日：1989-07-10
CPC分类号： F16J15/3456 , F16J15/3256 , Y10S277/918 , Y10S277/93
摘要： A static dirt exclusion element is arranged in a unitized housing to contact a rotating exclusion element so as to provide a primary barrier to dust and airborne contaminants. A secondary barrier is provided in the housing in the form of a porous filter element formed of a foam or felted material to further exclude and entrap contaminants.
摘要翻译： 静态污垢排除元件布置在一体化壳体中以接触旋转排除元件，以便为灰尘和空气传播的污染物提供主要屏障。 在壳体中以由泡沫或毡状材料形成的多孔过滤元件的形式提供二级屏障，以进一步排除和捕获污染物。
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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。
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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。
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4.发明授权公开(公告)号：US08573602B2
公开(公告)日：2013-11-05
申请号：US13215528
申请日：2011-08-23
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。
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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
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。
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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
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。
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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。
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8.发明申请公开(公告)号：US20110227293A1
公开(公告)日：2011-09-22
申请号：US12725759
申请日：2010-03-17
申请人： Frederick R. Hatch , David M. Toth
发明人： Frederick R. Hatch , David M. Toth
CPC分类号： F16J15/3264 , F16J15/322 , F16J15/3228 , Y10T29/49826
摘要： A radial shaft seal assembly includes an outer case having an axially extending cylindrical outer rim and an axially extending cylindrical inner rim spaced radially from one another by an annular pocket. A radially extending first leg connects the outer rim to the inner rim and a second leg extends radially inwardly from the inner rim to a free end. The assembly includes a wear sleeve having an axially extending cylindrical wall with an outer surface providing a running surface and a flange extending radially outwardly from the running surface. A seal lip extends inwardly from the free end of the second leg into sealing abutment with the running surface. A first porous filter is received in the pocket, and a second porous filter extends in substantial abutment with the outer rim and the second leg of the outer case.
摘要翻译： 径向轴密封组件包括外壳，其具有轴向延伸的圆柱形外轮缘和通过环形口彼此径向间隔开的轴向延伸的圆柱形内轮缘。 径向延伸的第一腿将外边缘连接到内边缘，并且第二腿从内边缘径向向内延伸到自由端。 组件包括具有轴向延伸的圆柱形壁的耐磨套筒，其外表面提供运行表面和从运行表面径向向外延伸的凸缘。 密封唇从第二腿的自由端向内延伸到与运行表面的密封邻接。 第一多孔过滤器被容纳在口袋中，并且第二多孔过滤器与外壳的外缘和第二腿基本上邻接延伸。
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公开(公告)号：US06620361B1
公开(公告)日：2003-09-16
申请号：US10191945
申请日：2002-07-09
申请人： Scott Longtin , Stephen J. Carr , Frederick R. Hatch , Jon A. Chandler , Gary B. Drake , Ronald Maurice Noteboom, II , Michael J. Myers
发明人： Scott Longtin , Stephen J. Carr , Frederick R. Hatch , Jon A. Chandler , Gary B. Drake , Ronald Maurice Noteboom, II , Michael J. Myers
IPC分类号： B29C4514
CPC分类号： F01D11/003 , B29C43/18 , B29C45/0055 , B29C45/14336 , B29C45/14467 , B29C2045/0058 , B29C2045/14459 , B29D99/0053 , B29K2021/00 , B29K2627/18 , B29L2031/26 , F02C7/28 , F16J15/328 , Y10S277/924
摘要： A method of fabricating a fluid seal for sealing a relatively rotatable member, wherein the fluid seal has an elastomeric sealing member bonded to a PTFE insert. A wafer of PTFE material has a body portion and an end portion of a greater thickness than the body portion. The wafer is placed in a mold cavity with one side of the wafer opposed to a surface portion of the mold cavity. Elastomeric material is forced into the mold cavity to form a molded preform of the elastomeric sealing member and bond the preform to an opposite side of the wafer. The molded preform and bonded wafer are removed from the mold cavity. The end portion of the wafer and an end portion of the preform are trimmed to form the fluid seal.
摘要翻译： 一种制造用于密封可旋转构件的流体密封件的方法，其中所述流体密封件具有结合到PTFE插入件上的弹性体密封构件。 PTFE材料的晶片具有比主体部分更大的主体部分和端部部分。 将晶片放置在模具腔中，其中晶片的一侧与模腔的表面部分相对。 弹性体材料被迫进入模腔中以形成弹性密封件的模制预成型件，并将预制件粘合到晶片的相对侧。 将模制的预成型件和接合的晶片从模腔中移除。 晶片的端部和预制件的端部被修整以形成流体密封。
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公开(公告)号：US4583749A
公开(公告)日：1986-04-22
申请号：US697429
申请日：1985-02-01
申请人： Frederick R. Hatch
发明人： Frederick R. Hatch
IPC分类号： F16J15/32
CPC分类号： F16J15/3284 , F16J15/3228 , F16J15/3268 , F05C2225/04
摘要： An annular seal assembly which is adapted to be utilized in a vehicle air conditioning compressor. The seal assembly includes an outer annular support housing which is sealingly secured to the main body of the compressor in coaxial relationship with a rotatable shaft. An annular PTFE seal element includes an outer annular periphery sealingly secured to the support housing, and an inner annular periphery adapted to sealingly engage the rotatable shaft. In the preferred embodiment of the invention, the outer annular housing of the seal assembly is formed to include an inwardly facing annular recessed portion which is adapted to receive an annular gasket ring utilized to provide a seal between the PTFE seal element and the outer annular housing. The outer annular housing is also provided with an outwardly facing inner annular recessed portion which is adapted to receive a suitable tool for removing the seal element from the main body of the compressor.
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