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1. 发明授权

US4351534A Abrasive-erosion resistant gasket assembly 失效
标题翻译：耐磨蚀垫片组件
公开(公告)号：US4351534A
公开(公告)日：1982-09-28
申请号：US149036
申请日：1980-05-12
申请人： Donald J. McDowell
发明人： Donald J. McDowell
IPC分类号： F16J15/12 , F16J15/06
CPC分类号： F16J15/123
摘要： An abrasive-erosion resistant head gasket assembly includes a flat-elongated core, a sheet of composite gasket material on each face of the base, armor to seal the combustion chambers, and bodies of abrasive-erosion resistant elastomeric material at each end of the gasket assembly. The abrasive-erosion resistant bodies are selectively applied to the end zones of the gasket assembly where abrasive-erosion is normally at a maximum. The bodies resist abrasive-erosion. The bodies are applied to the facing material or in zones from which the facing materials have been removed and preferably are cured concurrently with the lamination and curing of the facing materials.
摘要翻译：抗磨损头枕垫片组件包括扁平细长芯，在基座的每个表面上的复合垫片材料片，用于密封燃烧室的装甲和在垫圈的每个端部处的耐磨损抗磨损的弹性材料体部件。耐磨损体被选择性地施加到垫片组件的端部区域，其中磨蚀侵蚀通常是最大的。身体抵抗磨蚀侵蚀。将物体施加到面层材料或面层材料已经从其移除的区域中，并且优选地与面层材料的层压和固化同时固化。

2. 发明授权

US4817969A Gasket and method of making same 失效
标题翻译：垫片及其制作方法
公开(公告)号：US4817969A
公开(公告)日：1989-04-04
申请号：US123219
申请日：1987-11-20
申请人： Donald J. McDowell , Michael J. Maloney , Jerri L. Cooper , Lawrence Pyle
发明人： Donald J. McDowell , Michael J. Maloney , Jerri L. Cooper , Lawrence Pyle
IPC分类号： B29C45/00 , B29C70/14 , B29D99/00 , F16J15/10 , F16J15/12
CPC分类号： B29C70/14 , B29C45/0005 , B29D99/0053 , F16J15/102 , F16J15/123 , B29C2045/0008 , B29L2031/26 , B29L2031/265 , Y10S277/937 , Y10S277/938 , Y10S277/945 , Y10T29/49297
摘要： A gasket such as a cylinder head gasket molded of an amorphous fiber reinforced thermoplastic resin composite having at least 3% by weight of reinforcing fibers, and having an integral non-elastomeric sealing bead extending above the gasket body and surrounding at least one service opening, and a method of making such a gasket.

3. 发明授权

US4103913A Fretting corrosion resistant gasket and method of making same 失效
标题翻译：耐磨耐腐蚀垫片及其制造方法
公开(公告)号：US4103913A
公开(公告)日：1978-08-01
申请号：US678043
申请日：1976-04-19
申请人： Donald J. McDowell
发明人： Donald J. McDowell
IPC分类号： F02B3/06 , F16J15/08 , F16J15/10
CPC分类号： F16J15/0818 , F16J15/0806 , F02B3/06 , F16J2015/085 , F16J2015/0856 , F16J2015/0862
摘要： A multilayer engine gasket is provided for resisting scoring, scratching and fretting corrosion. The gasket includes a metal core or substrate, an intermediate phosphate layer and an exterior layer of anti-fretting material. The metal core is preferably formed of steel and is constructed and arranged to be mounted between an engine head and block of an internal combustion engine, such as a diesel engine. A pair of piston-size apertures and a plurality of oil and water passageways are defined in the metal core. The intermediate phosphate layer enhances the ability of the anti-fretting material to adhere to the gasket and provides and assists in resisting anti-fretting corrosion. The exterior layer of anti-fretting material is formulated from a ratio of from about 65 per cent to about 35 per cent polytetrafluoroethylene to a ratio from about 35 per cent to about 65 per cent molybdenum disulfide by weight. A separately screened-on silicone bead may optionally border the peripheral edges of the metal core so as to provide a peripheral seal.
摘要翻译：提供多层发动机衬垫，用于抵抗刻痕，划痕和微动腐蚀。垫圈包括金属芯或基底，中间磷酸盐层和抗微动材料的外层。金属芯优选由钢形成，并且构造和布置成安装在诸如柴油发动机的内燃机的发动机头和块之间。金属芯中限定有一对活塞尺寸的孔和多个油水通道。中间磷酸盐层增强了抗磨损材料粘附到垫圈上的能力，并提供并有助于抵抗抗微动腐蚀。抗微动材料的外层由约65％至约35％的聚四氟乙烯的比例配制成按重量计约35％至约65％的二硫化钼的比例。一个单独屏蔽的硅胶珠可以选择地与金属芯的外围边缘接触，以便提供外围密封。

4. 发明授权

US5122214A Method of making a rubber laminated gasket 失效
标题翻译：制造橡胶层压垫片的方法
公开(公告)号：US5122214A
公开(公告)日：1992-06-16
申请号：US479336
申请日：1990-02-13
申请人： Thomas O. Zurfluh , Donald J. McDowell
发明人： Thomas O. Zurfluh , Donald J. McDowell
IPC分类号： B32B15/06 , F16J15/12
CPC分类号： F16J15/122 , B32B15/06 , Y10T156/1041 , Y10T156/1044 , Y10T156/1057 , Y10T428/31707 , Y10T428/3171
摘要： A laminated gasket assembly and method of making same is disclosed. The laminated gasket assembly comprises first and second sheets, each having a thin metallic layer having a thin elastomeric coating on at least one major surface, and an elastomeric layer interposed between, and joining, the sheets, with first and second thin elastomeric coatings facing outwardly in opposite directions. The gasket assembly defines at least one elevated pressure service opening therethrough. The sheets and layers are laminated and define an embossment around a service opening, with the elastomeric layer being conformed to the embossment.
摘要翻译：公开了层压垫圈组件及其制造方法。层压垫圈组件包括第一和第二板，每个板具有在至少一个主表面上具有薄的弹性体涂层的薄金属层，以及插入在板之间并且连接板的弹性体层，第一和第二薄弹性体涂层面向外在相反的方向垫圈组件限定了至少一个穿过其中的高压服务开口。片和层被层压并且在服务开口周围形成压花，弹性体层与压纹相一致。

5. 发明授权

US4111583A Roadway joint seal and sealing assembly 失效
标题翻译：道路接头密封和密封组件
公开(公告)号：US4111583A
公开(公告)日：1978-09-05
申请号：US799594
申请日：1977-05-23
申请人： John F. Brady , Donald J. McDowell
发明人： John F. Brady , Donald J. McDowell
IPC分类号： E01D19/06 , E01C11/04
CPC分类号： E01D19/06
摘要： A sealing system for roadway expansion joint gaps and the like. A continuous seal is provided comprising an elongated central arched segment, a pair of longitudinally extending legs, and a protrusion extending upwardly from each of the legs. The seal embeds at least one fabric reinforcement layer to stiffen, rigidify and strengthen the seal means and the protrusions. The seal is secured to each roadway slab between a horizontal surface and a retainer which defines an elongated recess for sealingly receiving, engaging and compressing a protrusion. A limiter is provided for limiting the compression of the protrusions, and a retainer lip is provided for visually indicating that sealing of a protrusion has been effected.

6. 发明授权

US4834279A Gasketing material and method of making same by densifying adhesive bonded facing layers to a metallic core 失效
标题翻译：垫片材料及其制造方法，其通过将粘合的粘合面层致密化成金属芯
公开(公告)号：US4834279A
公开(公告)日：1989-05-30
申请号：US80888
申请日：1987-08-03
申请人： Donald J. McDowell , John A. Michna
发明人： Donald J. McDowell , John A. Michna
IPC分类号： B32B15/04 , F16J15/12
CPC分类号： B32B15/04 , F16J15/122 , Y10S277/922 , Y10T29/49297
摘要： This application discloses a method of producing gasketing material having an expansive solid metallic core and a densified facing covering a face of the core adhesively bonding a moderate density non-asbestos facing formed by a paper-making process to the core face and then, densifying the facing by compressing said facing in a series of at least 2 passes through compression rollers, thereby to densify said facing to a minimum of 80% of its ultimate density, while reducing the thickness of the facing to no more than 80% of its original thickness, all without significant distortion or destruction of said facing, and the gasketing material resulting from the practice of the method.

7. 发明授权

US4743421A Method of making gasket having roller coated secondary seals 失效
标题翻译：制造具有辊涂二次密封件的垫圈的方法
公开(公告)号：US4743421A
公开(公告)日：1988-05-10
申请号：US40033
申请日：1987-04-20
申请人： Donald J. McDowell , Jerry Zabel
发明人： Donald J. McDowell , Jerry Zabel
IPC分类号： B05D1/28 , B29D99/00 , F16J15/12 , B29C59/02
CPC分类号： B29D99/0053 , F16J15/123 , B29L2031/26 , Y10S277/924
摘要： A method of making a gasket is disclosed. Peaks, such as those formed by embossments are formed in a main gasket body, the peaks projecting from a major surface of the gasket body. The projecting peaks are roller coated with a sealant material which is then cured, thereby inexpensively to form an improved gasket.

8. 发明授权

US4090997A High-strength anaerobic sealant composition and method of preparation 失效
标题翻译：高强度厌氧密封胶组合物及其制备方法
公开(公告)号：US4090997A
公开(公告)日：1978-05-23
申请号：US664391
申请日：1976-03-05
申请人： Purshottam S. Patel , Donald J. McDowell
发明人： Purshottam S. Patel , Donald J. McDowell
IPC分类号： C08F4/40 , C09J4/00 , C09J5/00 , C08F2/02
CPC分类号： C09J4/00
摘要： An anaerobic sealant composition capable of polymerizing upon exclusion of air comprises (1) a polyacrylic ester monomer, (2) an inorganic salt initiator which can be a persulfate or a perchlorate of ammonium, alkali metal or an alkaline earth metal, (3) a polymerization accelerator which can be a secondary or tertiary amine, a N,N-di(lower alkyl)amide of a monocarboxylic aliphatic acid, an organic carboximide of a polycarboxylic acid, or an organic sulfimide of a carboxylic acid, or mixtures of the foregoing (4) a N-nitrosoamine, and (5) a quinone-type polymerization inhibitor. The composition is prepared by compounding the aforementioned ingredients and suitably aging the resulting formulation.
摘要翻译：能够在排除空气时聚合的厌氧密封剂组合物包括（1）聚丙烯酸酯单体，（2）可以是铵，碱金属或碱土金属的过硫酸盐或高氯酸盐的无机盐引发剂，（3）可以是仲胺或叔胺的聚合促进剂，单羧酸脂肪酸的N，N-二（低级烷基）酰胺，多元羧酸的有机酰亚胺或羧酸的有机硫酰亚胺，或前述的混合物（4）N-亚硝基胺，（5）醌型聚合抑制剂。通过混合上述成分并适当地老化所得制剂来制备组合物。

9. 发明授权

US5541570A Force sensing ink, method of making same and improved force sensor 失效
标题翻译：力传感油墨，制作方法和改进的力传感器
公开(公告)号：US5541570A
公开(公告)日：1996-07-30
申请号：US353051
申请日：1994-12-09
申请人： Donald J. McDowell
发明人： Donald J. McDowell
IPC分类号： G01L1/20 , H01C10/10
CPC分类号： H01C10/106
摘要： An improved carbon-free force sensitive ink for a force sensor. The ink when deposited and dried can function at temperatures of up to 350.degree. F. and pressures of up to 10,000 psi. The preferred ink includes a thermoplastic polyimide binder, conductive particles, intrinsically semi-conductive particles, and dielectric particles, all of an average particle size of 1.0 micron or less. The preferred semi-conductive particles are molybdenum disulfide, ferric and ferrous oxide particles. The preferred conductive particles are conductive metal oxide compounds that deviate from stoichiometry based on an oxygen value of two, such as conductive tin oxide, Fe.sub.3 O.sub.4 iron oxide, and mixtures of them. The preferred dielectric particles are silica. The binder is present in an amount of 20 to 80% by volume. The sensor and a method of making the sensor are also disclosed.
摘要翻译：用于力传感器的改进的无碳力敏感油墨。沉积和干燥时的油墨可以在高达350°F的温度下运行，压力高达10,000psi。优选的油墨包括热塑性聚酰亚胺粘合剂，导电颗粒，固有半导体颗粒和电介质颗粒，所有平均粒度均为1.0微米或更小。优选的半导电颗粒是二硫化钼，三价铁和氧化亚铁颗粒。优选的导电颗粒是基于氧值为2的氧化值偏离化学计量的导电金属氧化物化合物，例如导电氧化锡，Fe 3 O 4氧化铁及其混合物。优选的介电颗粒是二氧化硅。粘合剂的存在量为20〜80体积％。还公开了传感器和制造传感器的方法。

10. 发明授权

US4659410A Method of making a silk-screened gasket of enhanced sealing characteristics 失效
标题翻译：制造增强密封特性的丝印垫片的方法
公开(公告)号：US4659410A
公开(公告)日：1987-04-21
申请号：US718643
申请日：1985-04-01
申请人： Donald J. McDowell , Jerri L. Cooper
发明人： Donald J. McDowell , Jerri L. Cooper
IPC分类号： F16J15/12 , B32B31/12
CPC分类号： F16J15/123
摘要： A method of making a gasket assembly of enhanced sealing characteristics comprising the steps of providing a gasket body having an expansive metallic core and at least one compressible fiber-elastomer facing layer and defining at least one clear-through opening, providing a silk screen through which a fluid silicone sealant material is adapted to be squeezed in a desired sealing pattern onto the gasket body, squeezing through the silk screen a fluid, moisture-carbon dioxide curable, silicone sealant material which is curable in the presence of high humidity and carbon dioxide levels into a desired sealing pattern onto the facing layer without intervening barrier coats, preheating the gasket body to a temperature of from about 170.degree. F. to about 185.degree. F. for about 30 to 60 seconds without added moisture, positioning the patterned gasket body in a chamber, and exposing the gasket body in the chamber to a conditioned atmosphere of humidity of at least about 85% relative humidity and of a carbon dioxide volume percent of from about 9 to about 13%, for from about 5 to about 8 minutes, thereby to cure the silicone sealant material to form an elastomeric silicone sealing pattern on the gasket body.
摘要翻译：一种制造具有增强的密封特性的垫圈组件的方法，包括以下步骤：提供具有膨胀金属芯和至少一个可压缩纤维 - 弹性体面向层并限定至少一个透明开口的垫圈主体，提供丝网，通过该丝网流体硅酮密封剂材料适于以期望的密封图案挤压到垫片主体上，通过丝网印刷在高湿度和二氧化碳水平存在下可固化的流体，水分 - 二氧化碳可固化的硅酮密封剂材料在没有中间屏障涂层的情况下将所需的密封图案加工到面层上，将垫片主体预热至约170°F至约185°F的温度约30至60秒而不增加湿气，将图案化垫圈主体放置在一个室，并将该室中的垫圈体暴露于至少约85％相对湿度和湿度的调节气氛约9至约13％的二氧化碳体积百分数，约5至约8分钟，从而固化硅酮密封剂材料以在垫片主体上形成弹性体硅树脂密封图案。

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