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公开(公告)号：US06511045B2
公开(公告)日：2003-01-28
申请号：US09791308
申请日：2001-02-22
申请人： Masahito Hirose , Hiroaki Asanuma
发明人： Masahito Hirose , Hiroaki Asanuma
IPC分类号： F16K132
CPC分类号： F01L3/02 , C23C8/10 , C23C8/80 , F01L2101/00 , F01L2103/00 , Y10T137/7036
摘要： A Ti alloy poppet valve consists of a valve stem and a valve head, and is employed as intake or exhaust valve in an internal combustion engine of an automobile. O2 is put into the valve in a furnace at very slight amount and heated to introduce oxygen atoms into titanium of the valve to form a Ti—O interstitial solid solution without making titanium oxides. The valve is strengthened to increase hardness and wear resistance.
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公开(公告)号：US06457760B1
公开(公告)日：2002-10-01
申请号：US09595612
申请日：2000-06-16
申请人： David W. Pratt
发明人： David W. Pratt
IPC分类号： F16K132
CPC分类号： E21B49/082 , E21B27/00 , F16K1/34 , G01N1/12 , Y10T137/7915
摘要： A bailer that is substantially leak-free includes an improved valve housing at its lowermost end. A valve body in the form of a solid or hollow hemispherical ball is mounted at the lowermost end of a straight valve stem. The hemispherical valve body seats in a valve seat that matches the contour of the hemispherical exterior surface of the valve body. The valve body has a preselected specific gravity that enables it to float on the surface of the liquid fluid being sampled when the valve body is unrestricted. The valve stem is slideably received within and guided by a central aperture formed in a central hub of a spider member that spans the hollow interior of the valve housing. The spider is supported about its periphery by an annular shoulder formed in the interior sidewalls of the valve housing. The spider is inserted into the valve housing and pressed against the annular shoulder when the bailer is assembled. In this way, the spider is positively positioned and serves to limit the travel of the valve body away from the valve seat. The spider has four legs of equal length that radiate outwardly from the central hub. In a first embodiment, the legs collectively form a “+” when seen in plan view and an annular ring interconnects the outermost ends of the legs. A flange circumscribes the annular ring and engages the annular shoulder to provide positive positioning for the spider within the bailer. In a second embodiment, the legs are grouped into two pairs so that they collectively form an “X” shape when seen in plan view. The outermost ends of the legs in a pair are interconnected to one another by an arcuate segment to save materials. A flange is formed in each arcuate segment to engage the annular shoulder formed in the interior sidewall of the bailer, to provide positive positioning of the spider. In both embodiments, flutes are formed in peripheral walls that define the central aperture formed in the hub so that particulate matter does not become wedged between the valve stem and the peripheral walls. High speed insertion of the bailer into a body of liquid fluid is facilitated by weights secured to its leading and trailing ends and the weights at the leading end are covered by a shroud having an aerodynamically-shaped cap at its leading end. Alternatively, the shroud is eliminated and a weight housing having an aerodynamically shaped cap is detachably secured to the leading end of the bailer.
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公开(公告)号：US06186477B1
公开(公告)日：2001-02-13
申请号：US09305604
申请日：1999-05-05
IPC分类号： F16K132
CPC分类号： A61M16/20 , A61M16/201 , A61M16/202 , Y10S251/90
摘要： A pressurized gas flow controlling microvalve having a casing and cap which together define a valve chamber having gas flow inlet and outlet ports and a plunger positioned within the valve chamber moveable from a closed position sealing the outlet port to an open position permitting gas to flow through the valve, the plunger having mounted thereon an O-ring which provides the seal for the outlet port.
摘要翻译： 一种具有壳体和盖子的加压气体流量控制微型阀，其一起限定具有气流入口和出口端口的阀室和位于阀室内的柱塞，其可从封闭位置移动，从而将出口密封到打开位置，允许气体流过 阀，其上安装有提供用于出口的密封件的O形环的柱塞。
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