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1. 发明授权

US4126316A Method of installing shaft seal with reformable shell 失效
标题翻译：安装轴封与可重整外壳的方法
公开(公告)号：US4126316A
公开(公告)日：1978-11-21
申请号：US792818
申请日：1977-05-02
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： F16J15/32 , F16J15/56
CPC分类号： F16J15/3268 , Y10T29/49845 , Y10T29/49934
摘要： A shaft seal with a reformable shell and a seal lip which can be readily installed over a roughened, enlarged or irregular portion of a shaft and then be reformed so that the sealing lip is brought into proper sealing engagement with the shaft.
摘要翻译：具有可重新制造的外壳和密封唇的轴封，其可以容易地安装在轴的粗糙化，扩大或不规则部分上，然后被重新形成，使得密封唇与轴正确地密封接合。

2. 发明授权

US4504067A High pressure shaft seal with low-friction lip liner 失效
标题翻译：高压轴封，低摩擦唇线
公开(公告)号：US4504067A
公开(公告)日：1985-03-12
申请号：US615159
申请日：1984-05-30
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： F16J15/32 , F16J15/34
CPC分类号： F16J15/3284 , F16J15/322
摘要： A lip type bonded shaft seal adapted to seal against substantial fluid pressure. The seal includes a low-friction liner bonded to a sealing portion of an elastomeric element which is bonded to a U-shaped metal shell which helps to support the sealing lip portion. The low-friction liner is not bonded to any part of the metal shell.
摘要翻译：唇形粘合轴密封件，其适于密封实质的流体压力。密封件包括结合到弹性体元件的密封部分的低摩擦衬垫，所述密封部分结合到有助于支撑密封唇部的U形金属外壳。低摩擦衬垫不粘合到金属外壳的任何部分。

3. 发明授权

US4218813A Method and tool for installing shafts through seals 失效
标题翻译：通过密封安装轴的方法和工具
公开(公告)号：US4218813A
公开(公告)日：1980-08-26
申请号：US8061
申请日：1979-01-31
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： B25B27/00 , F16J15/32 , B23P11/02 , B23P19/02
CPC分类号： F16J15/3268 , B25B27/0028 , Y10T29/4987 , Y10T29/49895 , Y10T29/53657
摘要： An installation tool 10 and method for preventing damage to the lip or lips 34 and 35 of a shaft seal 12 mounted in a bore 16 of a housing 18 during installation of a shaft 20 through the bore and seal, the tool including a handle 26, an annular body 22 and a lip protective sleeve 24. The body and sleeve have a split 27 therethrough to allow for circumferential expansion thereof such that it can be removed radially off of the shaft 20.
摘要翻译：安装工具10和方法，用于防止在通过孔和密封件安装轴20期间安装在壳体18的孔16中的轴密封件12的唇缘或唇缘34和35的损坏，该工具包括手柄26，环形主体22和唇缘保护套24.本体和套筒具有穿过其的分隔件27，以允许其周向膨胀，使得其可以径向从轴20移除。

4. 发明授权

US4258927A Shaft seal with retractable polytetrafluoroethylene-lined sealing lip 失效
标题翻译：轴封可折叠聚四氟乙烯衬里密封唇
公开(公告)号：US4258927A
公开(公告)日：1981-03-31
申请号：US969162
申请日：1978-12-13
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： F16J15/32 , F16J15/34
CPC分类号： F16J15/3204 , F16J15/3268
摘要： A shaft seal with a polytetrafluoroethylene-lined lip having the following dimensional criteria thus providing sufficient retraction to effect positive sealing against a smaller diameter shaft section after installation and stretching over a larger diameter shaft section:(1) Lip Angle=15.degree.--25.degree.;(2) Included Angle--must be divergent axially from the flex secton;(3) Clearance Diameter--must be greater than the shaft oversized step diameter;(4) Lip Interference.gtoreq.125% of X (X is the difference between the diameters of the oversized shaft section and the diameter of the section to be sealed; and(5) Lip Height.gtoreq.175% of X.The above parameters are for seals to be used on shafts where there will be runout and/or angular shaft displacement. When there is no runout or angular shaft displacement, the seal parameters are identical to those listed above except that lip interference .gtoreq.100% of X, and lip height.gtoreq.150% of X.The present invention also includes the method of installation of such seal and the combination of such seal and the shaft on which it is installed.
摘要翻译：具有以下尺寸标准的具有聚四氟乙烯衬里的唇缘的轴封由此提供足够的缩回以在安装和拉伸较大直径的轴部之后对较小直径的轴部进行正密封：（1）唇角= 15°-25° ; （2）包括的角度必须从弯曲部分轴向发散; （3）间隙直径 - 必须大于轴尺寸过大的直径; （4）唇部干涉> / = X的125％（X是尺寸过大的轴部分的直径与待密封部分的直径之间的差异;以及（5）唇部高度> / = X的175％。以上参数用于在有跳动和/或角轴位移的轴上使用的密封件，当没有跳动或角轴位移时，密封参数与上述相同，除了唇部干涉≥100％的X和唇高度> / = 150％。本发明还包括安装这种密封件的方法以及这种密封件与安装在其上的轴的组合。

5. 发明授权

US4406847A Method for making a lip type shaft seal having a resin liner 失效
标题翻译：制造具有树脂衬垫的唇型轴封的方法
公开(公告)号：US4406847A
公开(公告)日：1983-09-27
申请号：US219364
申请日：1980-12-22
申请人： Robert D. O'Neal , Dean R. Bainard , Douglas A. Cather, Jr.
发明人： Robert D. O'Neal , Dean R. Bainard , Douglas A. Cather, Jr.
IPC分类号： B29C43/18 , B29C70/84 , B29D99/00 , F16J15/32 , B29D3/00 , B29D23/01
CPC分类号： B29D99/0053 , B29C43/027 , B29C43/18 , B29C70/84 , F16J15/328 , B29K2021/00 , B29L2031/26 , Y10S425/047 , Y10T29/49906
摘要： A method for molding an annular lip type shaft seal 10 of the type having an annular elastomeric shaft seal element 12 and a resin liner 14 (preferably polytetrafluoroethylene) integrally molded therewith and bonded thereto, including providing a step or shoulder 36 on the mold core 26 to prevent the resin liner 14 from flowing axially beyond a predetermined location during molding. The method includes providing a certain range of acute angles ".alpha." between the shoulder surface 42 and the liner forming surface 38 of the mold core surface 34, and a certain range of shoulder heights "d" relative to the liner thickness "t", for various values of the initial viscosity of the elastomeric preform 18. The percentage of rejects due to undesired flow of the resin liner 14 during molding has been greatly reduced.
摘要翻译：用于模制具有环形弹性体轴密封元件12和与其一体模制并与其结合的树脂衬垫14（优选聚四氟乙烯）的类型的环形唇形轴封10的方法，包括在模芯26上提供台阶或肩部36 以防止树脂衬垫14在模制期间轴向流动超过预定位置。该方法包括在模芯表面34的肩部表面42和衬垫形成表面38之间提供一定范围的锐角“α”，并且相对于衬垫厚度“t”提供一定范围的肩部高度“d” 对于弹性体预制件18的初始粘度的各种值。由于在模制期间树脂衬垫14的不期望的流动导致的废品的百分比已经大大降低。

6. 发明授权

US4335889A Shaft seal with liner flange 失效
标题翻译：轴封与衬套法兰
公开(公告)号：US4335889A
公开(公告)日：1982-06-22
申请号：US163564
申请日：1980-06-27
申请人： Douglas A. Cather, Jr. , Martin E. Benjamin
发明人： Douglas A. Cather, Jr. , Martin E. Benjamin
IPC分类号： B29C33/40 , B29C43/18 , B29C70/74 , F16J15/32
CPC分类号： B29C70/74 , B29C33/40 , B29C43/18 , F16J15/328 , F16J15/3284 , B29L2031/26
摘要： An annular trimmed lip shaft seal of the type not having a metal shell but consisting solely of an elastomeric body and a liner of low friction material bonded thereto, which liner includes a radial flange extending radially out beyond the outside diameter of the elastomeric body for abutting the housing for locating the seal, and for strengthening the seal to provide seal retention and alignment. A method for making the seal and a method for locating, retaining and aligning a seal are also disclosed.
摘要翻译：一种不具有金属外壳但仅由弹性体和与其结合的低摩擦材料的衬垫组成的环形修剪的唇形轴密封件，该衬套包括径向凸出超出弹性体的外径的径向凸缘，用于邻接用于定位密封件的壳体，以及用于加强密封件以提供密封保持和对准。还公开了一种用于制造密封件的方法和用于定位，保持和对准密封件的方法。

7. 发明授权

US4311316A Shaft seal and method 失效
标题翻译：轴封和方法
公开(公告)号：US4311316A
公开(公告)日：1982-01-19
申请号：US179957
申请日：1980-08-21
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： F16J15/32
CPC分类号： F16J15/322 , F16J15/3284
摘要： A shaft seal 10 and method for use including an annular bore retention section 12 which includes a metal reinforcing shell 20 having a cylindrical portion and a radial flange; an annular flex section 16 comprised of axial flex section 28 and radial flex section 30; and a dual lip sealing element 14 comprised of primary sealing lip 32 and secondary sealing lip 34, both of said sealing lips being lined with a low-friction material such as, for example, polytetrafluoroethylene liner 42.
摘要翻译：轴封10和包括环形孔保持部分12的使用方法，该环形孔保持部分12包括具有圆柱形部分和径向凸缘的金属加强壳体20; 包括轴向挠曲部分28和径向弯曲部分30的环形弯曲部分16; 以及由主密封唇32和二次密封唇34组成的双唇密封元件14，两个密封唇都衬有低摩擦材料，例如聚四氟乙烯衬里42。

8. 发明授权

US4274641A Shaft seal and method 失效
标题翻译：轴封和方法
公开(公告)号：US4274641A
公开(公告)日：1981-06-23
申请号：US89281
申请日：1979-10-29
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： F16J15/32
CPC分类号： F16J15/322
摘要： A shaft seal 10 and method for sealing fluids in applications with excessive shaft-to-bore misalignment or dynamic shaft runout, including a seal 10 having a mounting section 22, a sealing element 24, and a convoluted flex section 26 which allows radial movement of the sealing element. The sealing element 24 includes a bearing member 42 having a liner 46 with a low friction, cylindrical bearing surface adjacent the lip 38, for causing the lip 38 to follow any radial movement of the shaft, and to prevent the lip 38 from taking an oval shape and leaking.
摘要翻译：轴密封件10和用于在具有过大的轴对孔未对准或动态轴跳动的应用中密封流体的方法，包括具有安装部分22的密封件10，密封元件24和卷曲的弯曲部分26，其允许径向移动密封元件。密封元件24包括具有衬垫46的轴承构件42，衬垫46具有邻近唇缘38的低摩擦圆柱形支承表面，用于使唇部38跟随轴的任何径向移动，并且防止唇部38呈椭圆形形状和泄漏。

9. 发明授权

US5244215A Rotary shaft seal with retractable excluder lip 失效
标题翻译：带可伸缩排气口的旋转轴封
公开(公告)号：US5244215A
公开(公告)日：1993-09-14
申请号：US875597
申请日：1992-04-28
申请人： Douglas A. Cather, Jr. , Boyce J. Lear, Jr.
发明人： Douglas A. Cather, Jr. , Boyce J. Lear, Jr.
IPC分类号： F16J15/32
CPC分类号： F16J15/3252
摘要： A seal assembly is provided for retaining fluids within a sealed region defined in part by the seal assembly secured within an annular casing member and in part by a shaft extending axially through the seal assembly within the casing. The fluid seal assembly includes both a primary and a secondary lip arranged to facilitate easier, more reliable installation of the shaft therethrough. The primary and secondary lips are joined by a center section which is supported by a generally L-shaped support ring which extends to the casing to form the seal.
摘要翻译：提供密封组件，用于将流体保持在由固定在环形壳体构件中的密封组件部分限定的密封区域内，并且部分地由轴向延伸穿过壳体内的密封组件的轴。流体密封组件包括主轴和副唇缘，其布置成便于更容易，更可靠地安装轴穿过其中。初级和次级唇缘由中心部分连接，中心部分由大致L形的支撑环支撑，该支撑环延伸到壳体以形成密封。

10. 发明授权

US4289321A Pressure shaft seal and method 失效
标题翻译：压力轴密封和方法
公开(公告)号：US4289321A
公开(公告)日：1981-09-15
申请号：US15597
申请日：1979-02-27
申请人： Douglas A. Cather, Jr.
发明人： Douglas A. Cather, Jr.
IPC分类号： E21B10/22 , E21B10/25 , F16J15/32
CPC分类号： E21B10/25 , F16J15/3208 , F16J15/3284
摘要： A shaft seal 10 and method, for use, for example with a rotary drill bit in the oil patch industry, including an annular metal ring 12, an annular elastomeric body 14 and a polytetrafluoroethylene liner 16. The seal 10 has an axially inwardly extending lubricant lip 18 and an axially outwardly extending mud lip 20. When the pressure of the lubricant exceeds a particular value for which the seal is designed (for example, in the range of 100-200 psi), the pressure causes the lubricant lip 18 to reverse direction and allow lubricant to be purged and flow axially outwardly past both lips, until its pressure is reduced after which the lubricant lip 18 returns (flips back) to it original position. During purging, the mud lip 20 acts as a restricted opening controlling purging and excluding drilling mud.
摘要翻译：轴密封件10和方法，用于例如在油贴工业中的旋转钻头，包括环形金属环12，环形弹性体14和聚四氟乙烯衬垫16.密封件10具有轴向向内延伸的润滑剂唇缘18和轴向向外延伸的泥浆唇20.当润滑剂的压力超过设计密封件的特定值（例如，在100-200psi的范围内）时，压力导致润滑剂唇缘18反转方向，并允许润滑剂被吹扫并且轴向向外流过两个嘴唇，直到其压力降低，之后润滑剂唇缘18返回（翻转）到其初始位置。在清洗期间，泥浆唇20用作控制清洗的限制开口，不包括钻井泥浆。

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