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    • 44. 发明授权
    • Reclaiming foundry sand by gravity flow system
    • 通过重力流动系统回收铸造砂
    • US6120284A
    • 2000-09-19
    • US996167
    • 1997-12-22
    • George E. GoodRichard L. MartinRodney G. MontroseCameron A. Montrose
    • George E. GoodRichard L. MartinRodney G. MontroseCameron A. Montrose
    • B22C5/08F27D1/00
    • B22C5/08
    • A method of reclaiming foundry sand by (a) providing a treatment tower having a plurality of heat conductive tubes extending across the interior of the treatment tower, the tubes being arranged in rows and staggered with respect to tubes in adjacent rows to create close spacing therebetween sufficient to permit the sand to flow continuously and non-turbulently along the contours of the exterior under the influence of gravity before dropping to the next adjacent tube to thereby again flow continuously and non-turbulently in successive sequence downwardly of the tower; (b) quiescently heating the interior tower space and tubes to a temperature in excess of 1300.degree. F. and introducing sufficient air or oxygen to permit combustion of the resin binder; and (c) feeding particulated sand to the top of the tower and tubes whereby such sand controllably flows along and through such labyrinth of tube spacings with little or no dwell on each contacted tube and in a time period of 5-15 seconds, said sand exiting from the bottom of said tower with said binder having been combusted to form a gas that is extracted from the top of the tower.
    • 一种通过(a)提供具有延伸穿过处理塔内部的多个导热管的处理塔来回收铸造砂的方法,所述管相对于相邻行中的管排成行并交错以形成紧密的间隔 足以允许沙子在重力作用下沿着外部轮廓连续流动并且不湍流地滴落到下一个相邻的管子上,从而连续地并且不间断地连续地在塔的下方流动; (b)将内部塔架空间和管子静止地加热至超过1300°F的温度,并引入足够的空气或氧气以使树脂粘合剂燃烧; 并且(c)将微粒沙子送入塔顶和管道,由此这种沙可控制地流过并穿过这些管间距的迷宫,几乎或不停留在每个接触管上,并且在5-15秒的时间段内,所述砂 从所述塔的底部离开所述粘合剂已经被燃烧以形成从塔的顶部提取的气体。
    • 46. 发明授权
    • Controlled atmosphere system for a refrigerated container
    • 冷藏集装箱的控制气氛系统
    • US5457963A
    • 1995-10-17
    • US259840
    • 1994-06-15
    • Barry P. Cahill-O'BrienMichael W. NevinRichard L. Martin
    • Barry P. Cahill-O'BrienMichael W. NevinRichard L. Martin
    • A01F25/00A23B7/04A23B7/148F24F11/00F25D11/00F25D17/04G05D21/02F24F3/16
    • A23B7/148F24F11/0009F25D17/042G05D21/02F24F2011/0026F24F2011/0028Y02B30/78
    • A method for controlling operation of a system for controlling the atmosphere within a confined space. The system has an electrical control having a display and electrically controlled components. The components include an air compressor, a filter, an air heater, a separator for dividing air into streams of oxygen and nitrogen, and flow control valves for varying the purity of the nitrogen stream. The system also includes sensors for indicating the temperature leaving the heater and the temperature within the confined space. A sensor indicates the pressure upstream of the control valves. An oxygen sensor and a carbon dioxide sensor are included. The method includes the steps of energizing the system and simultaneously operating the electrical control to perform the steps of: (1) operating the compressor to an on or off position responsive to inputs from the oxygen sensor and the carbon dioxide sensor; (2) operating the flow control to achieve setpoint oxygen and carbon dioxide levels in the atmosphere, in response to inputs from the oxygen sensor and the carbon dioxide sensor; (3) operating the air heater to maintain a preset value; (4) monitoring the oxygen sensor, and, compensating the output when a predetermined temperature of the atmosphere is indicated; (5) monitoring the carbon dioxide sensor, and compensating the output when a predetermined change in the temperature of the carbon dioxide sensor occurs; and (6) monitoring system components, and, indicating on the display when unsafe or out of range conditions occur.
    • 一种用于控制在密闭空间内控制气氛的系统的操作的方法。 该系统具有具有显示器和电控部件的电气控制。 这些部件包括空气压缩机,过滤器,空气加热器,用于将空气分成氧气和氮气流的分离器,以及用于改变氮气流纯度的流量控制阀。 该系统还包括用于指示离开加热器的温度和限制空间内的温度的传感器。 传感器表示控制阀上游的压力。 包括氧传感器和二氧化碳传感器。 该方法包括以下步骤:激励系统并同时操作电气控制以执行以下步骤:(1)响应于来自氧传感器和二氧化碳传感器的输入,将压缩机运行到打开或关闭位置; (2)响应于来自氧传感器和二氧化碳传感器的输入,操作流量控制以实现大气中的设定点氧气和二氧化碳水平; (3)操作空气加热器保持预设值; (4)监测氧传感器,并且当指示大气的预定温度时补偿输出; (5)监测二氧化碳传感器,并且当发生二氧化碳传感器的温度的预定变化时补偿输出; 和(6)监控系统组件,并在不安全或超出范围情况时在显示屏上指示。
    • 48. 发明授权
    • Reaction product of nitrogen bases and phosphate esters as corrosion
inhibitors
    • 氮基和磷酸酯的反应产物作为腐蚀抑制剂
    • US5380466A
    • 1995-01-10
    • US48555
    • 1993-04-15
    • Richard L. Martin
    • Richard L. Martin
    • C23F11/10C23F11/167
    • C23F11/10C23F11/1673
    • A method for inhibiting corrosion of metal surfaces in an aqueous medium, comprising incorporating into the medium a corrosion inhibitor in an amount sufficient to inhibit corrosion, the corrosion inhibitor comprising a water-soluble agent selected from the group consisting of compositions of the formula ##STR1## compositions of the formula and mixtures thereof, wherein R is R.sup.2 --(OCH.sub.2 CH.sub.2).sub.x --wherein R.sup.2 is a substituted or unsubstituted alkyl, aryl, or aralkyl group of from about five to about fifteen carbon atoms, each carbon atom having at least one hydrogen and x is an integer of from about one to about ten, and R'N is a basic nitrogen compound that is at least water-dispersible.
    • 一种用于抑制水性介质中金属表面的腐蚀的方法,包括以足以抑制腐蚀的量将一种腐蚀抑制剂引入该介质中,该腐蚀抑制剂包括一种水溶性试剂,该水溶性试剂选自下列组成: >式的组合物及其混合物,其中R是R 2 - (OCH 2 CH 2)x - ,其中R 2是取代或未取代的烷基,芳基或芳烷基,其碳原子数约为5至约15个碳原子, 至少一个氢,x是约1至约10的整数,R'N是至少水分散性的碱性氮化合物。
    • 49. 发明授权
    • Manufacture of wet laid nonwoven webs
    • 湿法非织造网的制造
    • US4822452A
    • 1989-04-18
    • US219909
    • 1988-07-18
    • Stephen H. TseDavid H. HollenbergRichard L. MartinJames H. Manning
    • Stephen H. TseDavid H. HollenbergRichard L. MartinJames H. Manning
    • D21F11/00D21H13/02D21H15/06D21H17/57D21H21/06D21H5/12
    • D21F11/004D21H21/06D21H13/02D21H15/06D21H17/57
    • A method for forming a fibrous web by wet-laying fibers on paper-making equipment, the web comprising staple length natural or synthetic fibers and wood cellulose paper-making fibers wherein a water furnish of the fibers is made up with an associative thickener in the absence of a conventional surfactant. A preferred associative thickener for use with hydrophobic fibers is a urethane block copolymer having a polyethylene glycol backbone, the associative thickener acting as both surfactant and thickener. With predominately cellulosic fibers, i.e. conventional wood cellulose fibers, or a mixture of conventional and contorted wood fibers, and synthetic cellulosic fibers, such as rayon, a hydroxyethyl cellulose having a long alkyl side chain is preferred. Excellent consistency of the water and fiber dispersion is obtained at relatively low viscosity with rapid drainage of water from the wire and uniform formation of the web.
    • 一种通过在造纸设备上通过湿敷纤维形成纤维幅材的方法,所述纤维网包括短纤维天然或合成纤维和木纤维素造纸纤维,其中纤维的水配料由缔合增稠剂 不存在常规表面活性剂。 与疏水性纤维一起使用的优选缔合增稠剂是具有聚乙二醇主链的聚氨酯嵌段共聚物,缔合增稠剂既用作表面活性剂又用作增稠剂。 主要是纤维素纤维,即常规木纤维素纤维,或常规和扭曲的木纤维的混合物,以及合成纤维素纤维如人造丝,优选具有长烷基侧链的羟乙基纤维素。 水和纤维分散体的优异稠度在相对较低的粘度下得到,并且从丝网中迅速排出水分并均匀地形成网状物。