公开(公告)号：US06769695B2

公开(公告)日：2004-08-03

申请号：US10020523

申请日：2001-12-14

Applicant: Jeffrey D. Stephens

Inventor： Jeffrey D. Stephens

IPC: F16J1516

CPC classification number: F04B53/164 ,  F16J15/166

Abstract: An improved support for a seal is provided in the form of a back-up ring that reduces or eliminates the gaps between a pump plunger and a high pressure cylinder of a pump. The support includes a back-up ring having opposed first and second faces with a wall thickness disposed between the faces. The back-up ring includes a frustro-conical concave surface on the first face and a frustro-conical convex surface on the second face. Also provided are a packing assembly including at least one back-up ring and a reciprocating pump incorporating the at least one back-up ring.

Abstract translation: 以支撑环的形式提供改进的密封支撑，其减少或消除泵柱塞和泵的高压缸之间的间隙。 支撑件包括具有相对的第一和第二表面的支撑环，其具有设置在两个面之间的壁厚。 支撑环包括在第一面上的截锥形凹面和第二面上的截头圆锥形凸面。 还提供了包括至少一个支撑环和结合有至少一个支撑环的往复泵的包装组件。

公开(公告)号：US07922566B2

公开(公告)日：2011-04-12

申请号：US11888688

申请日：2007-08-02

Applicant: Shajan V. Chacko ,  Duane C. Johnson ,  Jeffrey D. Stephens ,  Will C. Lambeth

Inventor： Shajan V. Chacko ,  Duane C. Johnson ,  Jeffrey D. Stephens ,  Will C. Lambeth

IPC: B24C5/04

CPC classification number: B24C1/045 ,  B24C5/02 ,  B24C5/04 ,  Y10T83/364

Abstract: A cutting head for a water jet cutting machine includes a base with a bore and an orifice member having an inlet, an outlet, and a passage extending between the inlet and outlet which increases velocity of fluid flowing through the passage to form a fluid jet. A wear insert has first and second ends, a passage extending between the two ends, the body second end being connected with the base and the body first end supporting the orifice member. A fluid focusing device includes a tubular body with a central passage having inlet and discharge ports, the tubular body being disposable within the base bore such that the body inlet port is fluidly coupleable with the orifice outlet. The tubular body and/or the base are/is configured such that the tubular body is separately positionable at one of a plurality of discrete, predetermined angular positions about the base bore axis.

Abstract translation: 用于水射流切割机的切割头包括具有孔的基座和具有入口，出口和在入口和出口之间延伸的通道的孔口构件，孔增加流过通道的流体的流速以形成流体射流。 磨损插入件具有第一和第二端，在两端之间延伸的通道，主体第二端与底座连接，主体第一端支撑孔口构件。 流体聚焦装置包括具有中心通道的管状主体，该中心通道具有入口和排出口，该管状体在基座孔内是一次性的，使得本体入口端口可与孔口出口流体连接。 管状体和/或基部被构造成使得管状体可分离地定位在围绕基部孔轴线的多个离散的预定角度位置之一处。

公开(公告)号：US4633087A

公开(公告)日：1986-12-30

申请号：US726658

申请日：1985-04-24

Applicant: Glenn K. Rosenthal ,  Jeffrey D. Stephens ,  Robert D. Rosenthal

Inventor： Glenn K. Rosenthal ,  Jeffrey D. Stephens ,  Robert D. Rosenthal

IPC: G01N21/25 ,  G01N21/35 ,  G01J1/00

CPC classification number: A61B5/4872 ,  G01N21/255 ,  G01N21/359 ,  G01N21/474 ,  G01N2201/062 ,  G01N2201/0813 ,  Y10S250/91

Abstract: A non-destructive testing instrument useful for measuring of organic constituents of materials utilizes interactance of near infrared radiation from near infrared emitting diodes positioned at one end of a light transmitting cylinder having a length sufficient so that diode point sources provide uniform radiation at the other end of the cylinder, the cylinder being shielded from light. A detector, which may be inside the cylinder, detects the interactance from such radiation to provide a measurement of body fat utilizing a unique formula and unique measuring technique to prevent noise and incorrect measurements.

Abstract translation: 用于测量材料的有机成分的非破坏性测试仪器利用位于具有足够长度的透光圆筒的一端处的近红外发射二极管的近红外辐射的相互作用，使得二极管点源在另一端提供均匀的辐射 气缸被遮光。 可以在气缸内部的检测器检测来自这种辐射的相互作用，以使用独特的配方和独特的测量技术来提供身体脂肪的测量，以防止噪音和不正确的测量。