Dense fluid cleaning centrifugal phase shifting separation process and apparatus
    2.
    发明授权
    Dense fluid cleaning centrifugal phase shifting separation process and apparatus 有权
    密封流体清洗离心相移分离工艺及装置

    公开(公告)号:US06802961B2

    公开(公告)日:2004-10-12

    申请号:US10221767

    申请日:2002-09-12

    Inventor: David P. Jackson

    Abstract: The present invention is an apparatus and process for cleaning substrates using dense fluids under the influence of centrifugal force and dense fluid phase changes. A perforated centrifuge drum operates within a pressure vessel having drains and fill ports. System controls include a high optical sensor, a low optical sensor, a pressure transducer, and a thermocouple. An external dense fluid cleaning and management system exchanges dense fluid and gas with the pressure vessel via the drain and fill ports. Dense fluid centrifugal separations prevent pooling and supercooling of liquid carbon dioxide avoiding recontamination of the substrate. The present invention can perform solvent-aided separation processes including liquid-liquid, liquid-supercritical-fluid, froth flotation and centrifugal phase-shift separations.

    Abstract translation: 本发明是一种用于在离心力和致密流体相变的影响下使用致密流体清洁基底的装置和方法。 穿孔离心机鼓在具有排水口和填充口的压力容器内操作。 系统控制包括高光学传感器,低光学传感器,压力传感器和热电偶。 外部稠密流体清洗和管理系统通过排水和填充口与压力容器交换稠密的流体和气体。 密集流体离心分离防止液体二氧化碳的汇集和过冷,避免了底物的再污染。 本发明可以进行溶液辅助分离,包括液液,液 - 超临界流体,泡沫浮选和离心相移分离。

    Coating process using dense phase gas
    3.
    发明授权
    Coating process using dense phase gas 失效
    涂层工艺采用密相气

    公开(公告)号:US5403621A

    公开(公告)日:1995-04-04

    申请号:US130671

    申请日:1993-10-01

    CPC classification number: B05D1/18 B05D2401/90

    Abstract: A process for coating a substrate with a chosen material comprising placing the substrate in a coating chamber and contacting the substrate with a mixture of the selected coating material in a chosen dense phase gas at a selected temperature and a pressure equal to or above the critical pressure of the dense phase gas for a period of time which is sufficient to allow complete penetration of the mixture into all surfaces of the substrate. Then, the phase of the dense phase gas is shifted to produce dissolution of the chosen material from the dense phase gas and to thereby form the coating of the chosen material on the substrate.

    Abstract translation: 一种用所选择的材料涂覆基材的方法,包括将基材放置在涂布室中,并且在所选择的温度和等于或高于临界压力的压力下使所选择的涂料在混合物中接触所选择的稠相气体 的密相气体持续一段时间,其足以允许混合物完全渗入基底的所有表面。 然后,将致密相气体的相位移动以产生所选材料从密相气体的溶解,从而在基底上形成所选材料的涂层。

    Dense fluid photochemical process for substrate treatment
    4.
    发明授权
    Dense fluid photochemical process for substrate treatment 失效
    用于底物处理的密集流体光化学过程

    公开(公告)号:US5215592A

    公开(公告)日:1993-06-01

    申请号:US643627

    申请日:1991-01-22

    Inventor: David P. Jackson

    Abstract: A process for removing undesired material from a chosen substrate by exposing the substrate simultaneously to ultraviolet radiation and a selected dense fluid, wherein the radiation produces a photochemical reaction that removes the undesired material from the substrate and the dense fluid enhances the removal of the undesired material. In an alternative embodiment, a reactive agent may additionally be used. The process may be used to remove contaminants from a substrate, etch a substrate surface, or destroy toxic organic material in industrial wastes.

    Abstract translation: 一种用于通过将衬底同时暴露于紫外线辐射和选定的致密流体从所选择的衬底去除不需要的材料的方法,其中所述辐射产生光学化学反应,其从衬底去除不需要的材料,并且致密的流体增强不需要的材料的去除 。 在替代实施方案中,另外可以使用反应剂。 该方法可用于从基底去除污染物,蚀刻底物表面或破坏工业废物中的有毒有机物质。

    Cleaning process using phase shifting of dense phase gases
    5.
    发明授权
    Cleaning process using phase shifting of dense phase gases 失效
    使用相态气相的清洗方法

    公开(公告)号:US5013366A

    公开(公告)日:1991-05-07

    申请号:US287207

    申请日:1988-12-07

    CPC classification number: B08B7/0021 C23G5/00

    Abstract: A process for removing two or more contaminants from a substrate in a single process. The substrate to be cleaned is contacted with a dense phase gas at or above the critical pressure thereof. The phase of the dense phase gas is then shifted between the liquid state and the supercritical state by varying the temperature of the dense fluid in a series of steps between temperatures above and below the critical temperature of the dense fluid. After completion of each step in the temperature change, the temperature is maintained for a predetermined period of time in order to allow contact with the substrate and contaminants and removal of the contaminants. At each step in the temperature change, the dense phase gas possesses different cohesive energy density or solubility properties. Thus, this phase shifting of the dense fluid provides removal of a variety of contaminants from the substrate without the necessity of utilizing different solvents. In alternative embodiments, ultraviolet radiation, ultrasonic energy, or reactive dense phase gas or additives may additionally be used.

    Abstract translation: 一种在单一工艺中从基材中除去两种或更多种污染物的方法。 待清洁的基底与等于或高于其临界压力的致密相气体接触。 然后通过在高于和低于致密流体的临界温度的温度之间的一系列步骤中改变致密流体的温度,使密相气体的相位在液体状态和超临界状态之间移动。 在温度变化的每个步骤完成之后,将温度保持预定的时间段,以便与基底和污染物接触并除去污染物。 在温度变化的每个步骤中,密相气体具有不同的内聚能密度或溶解性。 因此,致密流体的这种相移提供了从基材中除去多种污染物,而不需要使用不同的溶剂。 在替代实施例中,可以另外使用紫外线辐射,超声能量或反应性致密相气体或添加剂。

    Adaptive R744 minimum quantity cooling lubrication system

    公开(公告)号:US10759014B2

    公开(公告)日:2020-09-01

    申请号:US16217040

    申请日:2018-12-11

    Abstract: This application presents a method and apparatus for cooling a through-ported cutting tool with a source of liquid CO2 with a compressed air line with a compressed air inlet and multiple CO2 injection capillary segments; the capillary segments interconnect to the same source of liquid CO2 and can have high pressure valves and throttles; the throttles have different sizes; a first capillary ends near the cutting tool; the second capillary ends near the compressed air inlet. Using a particular sequence of opening or closing the valves to the liquid CO2 to the capillaries, mixing with the compressed air provides and recycling the residual CO2, this invention provides for uniform and controlled cooling of the cutting tool within a certain temperature range.

    Passive electrostatic CO2 composite spray applicator

    公开(公告)号:US10661287B2

    公开(公告)日:2020-05-26

    申请号:US15945698

    申请日:2018-04-04

    Inventor: David P. Jackson

    Abstract: An electrostatic spray application apparatus and method for producing an electrostatically charged and homogeneous CO2 composite spray mixture containing an additive and simultaneously projecting at a substrate surface. The spray mixture is formed in the space between CO2 and additive mixing nozzles and a substrate surface. The spray mixture is a composite fluid having a variably-controlled aerial and radial spray density comprising pressure- and temperature-regulated propellant gas (compressed air), CO2 particles, and additive particles. There are two or more circumferential and high velocity air streams containing passively charged CO2 particles which are positioned axis-symmetrically and coaxially about an inner and lower velocity injection air stream containing one or more additives to form a spray cluster. The axis-symmetrical CO2 particle-air streams are passively tribocharged during formation, and the spray clustering arrangement creates a significant electrostatic field and Coanda air mass flow between and surrounding the coaxial flow streams.

    Method of forming and using carbonated machining fluid
    8.
    发明授权
    Method of forming and using carbonated machining fluid 有权
    碳酸化加工液的成型和使用方法

    公开(公告)号:US08048830B1

    公开(公告)日:2011-11-01

    申请号:US12488457

    申请日:2009-06-19

    Inventor: David P. Jackson

    Abstract: A method of forming and delivering a carbonated machining fluid to be used in a machining process, the machining process including a tool contacting a substrate, comprises supplying a pressure vessel with a non-carbonated machining fluid and non-supercritical carbon dioxide. The machining fluid and carbon dioxide are allowed to admix such that at least a portion of the carbon dioxide dissolves into the machining fluid to form the carbonated machining fluid. The carbonated machining fluid is then delivered under pressure from the vessel to an applicator and applied to the tool or the substrate to impart cooling and lubricating effects.

    Abstract translation: 一种形成和输送用于加工过程中的碳化加工流体的方法,所述加工过程包括与基底接触的工具,包括向压力容器提供非碳酸化的加工流体和非超临界二氧化碳。 允许加工液和二氧化碳混合,使得至少一部分二氧化碳溶解在加工流体中以形成碳酸化的加工液。 然后将碳酸化的加工液在压力下从容器输送到施加器,并施加到工具或基底上以赋予冷却和润滑效果。

    Dense fluid cleaning centrifugal phase shifting separation process and apparatus
    9.
    发明授权
    Dense fluid cleaning centrifugal phase shifting separation process and apparatus 有权
    密封流体清洗离心相移分离工艺及装置

    公开(公告)号:US07601112B2

    公开(公告)日:2009-10-13

    申请号:US11271725

    申请日:2005-11-09

    Inventor: David P. Jackson

    Abstract: The present invention is an apparatus and process for cleaning substrates using fluids, including dense fluids. A perforated centrifuge drum operates within a pressure vessel. A dense fluid cleaning and management system including suitable process condition sensors provides for exchanging fluid with the pressure vessel.

    Abstract translation: 本发明是使用包括致密流体的流体清洁基板的装置和方法。 穿孔离心机鼓在压力容器内操作。 包括合适的工艺条件传感器的稠密流体清洁和管理系统提供与压力容器交换流体。

    Dense fluid spray cleaning method and apparatus
    10.
    发明授权
    Dense fluid spray cleaning method and apparatus 失效
    密液喷雾清洗方法及装置

    公开(公告)号:US5725154A

    公开(公告)日:1998-03-10

    申请号:US516530

    申请日:1995-08-18

    Inventor: David P. Jackson

    Abstract: A spray gun for cleaning using a dense fluid such as CO.sub.2, provides snow pellets of controllable size and kinetic energy, the kinetic energy being at a significantly higher level than has heretofore been attainable. A heated or thermal ionized gas is passed at substantial pressure accelerates the snow particles with an enveloping stream of gas. Charge build-up both within the snow delivery tube and in the substrate region is minimized by the use of a grounding helix in the snow delivery tube, in conjunction with the thermal ionized gas.

    Abstract translation: 使用致密流体(如二氧化碳)进行清洁的喷枪提供可控尺寸和动能的雪粒,动能处于比迄今为止可以获得的水平高得多的水平。 加热的或热离子化的气体在很大的压力下通过包裹的气流加速雪颗粒。 结合热离子化气体,通过在雪输送管中使用接地螺旋,可以最大限度地减少输送管内和基板区域内的电荷积聚。

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