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公开(公告)号：US06547888B1
公开(公告)日：2003-04-15
申请号：US09494093
申请日：2000-01-28
申请人： Peter C. Williams , Steven V. Marx
发明人： Peter C. Williams , Steven V. Marx
IPC分类号： C23C820
CPC分类号： C23C8/22
摘要： An iron-containing workpiece is case hardened by low temperature carburization during which one or more process steps—including adjusting the carburization temperature, adjusting the concentration of carburization specie in the carburization gas and reactivating the surfaces to be carburized—is carried out to enhance the overall rate and uniformity of carburization with minimized soot generation, whereby carburization can be completed faster than possible in the past.
摘要翻译： 含铁工件通过低温渗碳进行表面硬化，其中进行一个或多个工艺步骤，包括调节渗碳温度，调节渗碳气体中的渗碳物质的浓度并重新激活被渗碳的表面，以增强 碳酸化的总体速率和均匀性，最小化烟灰产生，从而可以比过去更快地完成渗碳。
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公开(公告)号：US06165597A
公开(公告)日：2000-12-26
申请号：US133158
申请日：1998-08-12
申请人： Peter C. Williams , Steven V. Marx
发明人： Peter C. Williams , Steven V. Marx
CPC分类号： C23C8/04 , F16L19/10 , F16L19/103 , Y10T428/24942
摘要： A selectively case hardened steel article by low temperature carburization includes a body made of a chromium bearing nickel or ferrous based alloy (for example, stainless steel), a first portion of the body having a first hardness characteristic, and a second portion of the body having a second hardness characteristic; the second portion being less than the entire body and substantially free of carbides. One method for selective case hardening by low temperature carburization includes the steps of applying a carbon blocking mask over surface areas of the article that are not going to be carburized; activating those surface areas that are to be carburized; diffusing carbon into the activated surface areas at a temperature below which carbides readily form; and removing the carbon blocking mask.
摘要翻译： 通过低温渗碳的选择性表面硬化钢制品包括由铬轴承镍或亚铁基合金（例如不锈钢）制成的主体，主体的第一部分具有第一硬度特性，并且主体的第二部分 具有第二硬度特性; 第二部分小于整个本体并且基本上不含碳化物。 通过低温渗碳选择性表面硬化的一种方法包括以下步骤：将碳阻挡面罩涂覆在不会被渗碳的制品的表面区域上; 激活要渗碳的表面区域; 在碳化物容易形成的温度下将碳扩散到活化的表面区域; 并除去碳阻挡掩模。
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公开(公告)号：US06123320A
公开(公告)日：2000-09-26
申请号：US231683
申请日：1999-01-14
IPC分类号： F16K7/12 , F16K31/122
CPC分类号： F16K31/122 , F16K7/12
摘要： A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm having a central boss that can be connected to or driven by a valve actuator. The diaphragm includes an outer peripheral edge and a relatively thin web portion that connects the boss to the outer edge. In one embodiment, the web portion is arcuate or dome shaped. The thinner web portion permits the diaphragm to have an extended cycle life and to permit the valve to operate at higher fluid pressures. The thin web may be defined by two different contoured surfaces, one convex and the other concave, such as formed by two radiuses. A valve body is provided that includes a bowl shaped valve cavity. This valve cavity includes an outer vertical edge to permit more thorough cleaning and to eliminate entrapment areas. The valve assembly provides support surfaces for the diaphragm that reduces stress on the diaphragm particularly at higher operating pressures.
摘要翻译： 提供了一种卫生隔膜阀，其包括具有可连接到阀致动器或由阀致动器驱动的中心凸起的大致圆顶形的隔膜。 隔膜包括外周缘和将凸起连接到外边缘的相对薄的腹板部分。 在一个实施例中，腹板部分是弧形或圆顶形。 较薄的腹板部分允许隔膜具有延长的循环寿命并且允许阀在更高的流体压力下操作。 薄腹板可以由两个不同的轮廓表面限定，一个凸形和另一个凹形，例如由两个半圆形成。 提供一种包括碗形阀腔的阀体。 该阀腔包括外部垂直边缘，以允许更彻底的清洁和消除夹带区域。 阀门组件为隔膜提供支撑表面，以减轻隔膜上的应力，特别是在较高的工作压力下。
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公开(公告)号：US6093303A
公开(公告)日：2000-07-25
申请号：US133040
申请日：1998-08-12
申请人： Peter C. Williams , Steven V. Marx
发明人： Peter C. Williams , Steven V. Marx
CPC分类号： C23C8/02
摘要： A method for case hardening a chromium bearing nickel or ferrous based alloy, for example stainless steel, article, the method including the steps of activating the surface of the article; and carburizing the activated surface at a temperature below that temperature which would promote the formation of carbides. In one embodiment the surface is activated by disposing a layer of iron over the surface of the article.
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公开(公告)号：USD414211S
公开(公告)日：1999-09-21
申请号：US98443
申请日：1998-12-28
申请人： Peter C. Williams
设计人： Peter C. Williams
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公开(公告)号：USD317815S
公开(公告)日：1991-06-25
申请号：US197901
申请日：1988-05-24
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公开(公告)号：US4792118A
公开(公告)日：1988-12-20
申请号：US64108
申请日：1987-06-18
IPC分类号： F16K5/06
CPC分类号： F16K5/0673
摘要： A ball valve includes a ball member rotatable in a valve chamber and cooperating with a pair of opposed seal assemblies. Each seal assembly comprises a support ring and disc spring having a resilient seal member interposed therebetween. A normally occuring void in the valve chamber is filled through use of a pair of dead space rings. These dead space rings are formed of a rigid, low friction material that does not substantially increase the torque required to rotate the ball member. In addition, the rigid material prevents cold flow of the material into the fluid passageway.
摘要翻译： 球阀包括可在阀室中旋转并与一对相对的密封组件配合的球件。 每个密封组件包括支撑环和碟形弹簧，弹簧密封件插入其间。 通过使用一对死空间环来填充阀室中的正常发生的空隙。 这些死空间环由刚性低摩擦材料形成，其基本上不增加旋转球部件所需的扭矩。 此外，刚性材料防止材料冷却流入流体通道。
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公开(公告)号：US4750708A
公开(公告)日：1988-06-14
申请号：US854814
申请日：1986-04-23
IPC分类号： F16K5/06
CPC分类号： F16K5/0631 , F16K5/0678
摘要： A ball valve for low and high pressure applications including a metallic seat member that toroidally deflects into sealing engagement with a ball member outer surface upon valve assembly. The seat member includes an outer circumferential rim portion and a radially inward extending frusto-conical portion. The rim portion is radially interposed between an annular, resilient flange member and an annular support member. The rim portion and resilient flange member define a behind-the-seat seal while the frusto-conical portion and support member abuttingly engage during extreme pressure conditions for added structural support. The radially innermost edge of the frusto-conical portion has an arcuate conformation to inhibit scoring of the ball member surface.
摘要翻译： 一种用于低压和高压应用的球阀，包括在阀组件上环形偏转成与球构件外表面密封接合的金属座构件。 座椅构件包括外圆周边缘部分和径向向内延伸的截头圆锥形部分。 轮缘部分径向介于环形弹性法兰件和环形支承件之间。 边缘部分和弹性凸缘构件限定了座椅后密封件，而截头圆锥形部分和支撑构件在用于增加的结构支撑件的极压条件下邻接地接合。 截头圆锥形部分的径向最内边缘具有弧形构造，以阻止球形件表面的刻痕。
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公开(公告)号：US4735533A
公开(公告)日：1988-04-05
申请号：US922527
申请日：1986-10-24
摘要： A locking assembly for locking a multi-sided nut-like member in a desired communicating relationship with a valve body. The locking assembly includes a lock plate having a planar body portion with a locking opening defined by a plurality of sides oriented relative to each other in a closed, star-like configuration. The locking opening is adapted to be closely received over and communicate with the sides of an associated nut-like member. The body portion also includes an arcuate mounting slot spaced from the locking opening and which is adapted to receive a lock plate mounting fastener therethrough. A continuous side wall or skirt portion depends from the periphery of the body portion and serves to space the body portion from the surface of an associated valve body. Preferably, a lock plate adapter is also provided. The adapter includes a body member having a through opening which is received over a section of the associated nut-like member, and a securing member cooperable with the lock plate mounting slot. The lock plate adapter also includes a mounting portion adapted for disposition in contacting relation with the associated valve body.
摘要翻译： 一种用于将多侧螺母状构件锁定在与阀体所期望的连通关系中的锁定组件。 锁定组件包括锁定板，该锁定板具有平面主体部分，该平坦主体部分具有由相对于彼此以闭合的星形结构定向的多个侧面限定的锁定开口。 锁定开口适于紧密地接收在与相关联的螺母状构件的侧面连通。 主体部分还包括与锁定开口间隔开的弓形安装槽，并且其适于容纳通过其中的锁定板安装紧固件。 连续的侧壁或裙部部分从主体部分的周边延伸并用于使主体部分与相关联的阀体的表面相隔离。 优选地，还提供了锁定板适配器。 适配器包括主体构件，其具有容纳在相关联的螺母状构件的一部分上的通孔，以及与锁定板安装槽配合的固定构件。 锁板适配器还包括适于与相关阀体接触的配置的安装部分。
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公开(公告)号：US4602762A
公开(公告)日：1986-07-29
申请号：US542399
申请日：1983-10-17
申请人： Ulrich H. Koch , Peter C. Williams
发明人： Ulrich H. Koch , Peter C. Williams
CPC分类号： F16K5/0673
摘要： A ball valve having an improved relationship between the ball and associated seat rings and an improved seat ring design. The ball is mounted for selective rotation and limited axial movement in a valve body passageway. Seat rings disposed on diametrically opposite sides of the ball about valve inlet and outlet openings each include a ball engaging surface having an arcuate contour. At a relaxed preassembly reference position, the radius of curvature of the ball engaging surface is greater than the radius of curvature of the ball. Frusto-conical disc springs interposed between each seat ring and an associated valve body shoulder additionally urge the seat rings into engagement with the ball. A reinforcing ring disposed at the forward end of each seat ring acts as a rigid bearing surface. Component sizing is such that in the assembled valve, the seat rings are slightly rotatably flexed in response to the engaging surfaces thereof engaging the ball such that the surfaces are distorted to have a mating relationship with the ball. At the same time, the disc springs are compressed while continuously urging the seat ring ball engaging surfaces into ball engagement.
摘要翻译： 具有改进的球和相关联的座圈之间关系的球阀和改进的座环设计。 球安装成用于选择性旋转并且在阀体通道中限制轴向运动。 围绕阀入口和出口开口设置在球的径向相对侧上的座圈包括具有弓形轮廓的球接合表面。 在松弛的预组件参考位置，球接合表面的曲率半径大于球的曲率半径。 插入在每个座圈和相关联的阀体肩部之间的截头圆锥形弹簧另外促使座圈与球接合。 设置在每个座圈的前端的加强环用作刚性支承表面。 组件尺寸使得在组装的阀中，响应于其接合球的接合表面，座圈稍微可旋转地弯曲，使得表面变形以具有与球的配合关系。 同时，碟形弹簧被压缩，同时连续推动座圈球接合表面进入球接合。
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