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公开(公告)号:US4393705A
公开(公告)日:1983-07-19
申请号:US287246
申请日:1981-07-27
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
IPC: G01N9/28
CPC classification number: G01N9/28
Abstract: Disclosed is an apparatus which utilizes pipes of different lengths oriented vertically within the fluid of a reservoir which are constantly pressured with a gas source, normally air. Since the pipes are of different length, but the pressure is the same, a different back pressure will occur in the longer pipe as compared to the shorter pipe due to the differing head of fluid which must be displaced by the gas to slowly bubble out of the lower end of the pipes. This pressure differential is then read and the calculations applied, either from a table or constantly monitored through a computer, to measure the pressure differential and calculate the same in terms of specific gravity. Once the specific gravity is known, the back pressure on either the short pipe or the long pipe can be impairedly calibrated, or calculated by an equation having the specific gravity now known, and then determining from that the back pressure which will vary with the height of the fluid in the reservoir. The apparatus includes an enclosure, a dome-like plenum chamber, and pressure chambers which are connected directly to a short pipe and a long pipe. Bleed holes are provided at the top of the pressure chambers of the size of a hypodermic needle to constantly permit the gaseous fluid to flow from the plenum into the long and short tube, and pressure transducers are directly coupled to the pressure chambers to provide a constant read-out.
Abstract translation: 公开了一种使用不同长度的管道的设备,该管道在储存器的流体内垂直定向,该管道通常用气源(通常为空气)加压。 由于管道长度不同但压力相同,所以与较短的管道相比,较长的管道会发生不同的背压,这是由于不同的流体头必须被气体置换以缓慢地从 管子的下端。 然后读取该压力差,并从计算机中计算或者通过计算机不断监测的计算,以测量压力差,并按比重计算相同的值。 一旦比重已知,短管或长管上的背压可以被不正确地校准,或者通过现在已知的具有比重的方程计算,然后确定将随着高度而变化的背压 的储存器中的流体。 该装置包括外壳,圆顶状的增压室和直接连接到短管和长管的压力室。 在皮下注射针的尺寸的压力室的顶部设置有出血孔,以使气体流体不断地从气室流入长管和短管,并且压力传感器直接耦合到压力室以提供恒定的 读出。
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公开(公告)号:US4361470A
公开(公告)日:1982-11-30
申请号:US171906
申请日:1980-07-24
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
Abstract: A connector plated contact point having a curvilinear area terminating in a feather edge. Optionally the contact has a conductive underbody having a feather edge. Both feather edged metals have a raised central portion. The contact is formed on a contact plater having a pair of opposed belts for grasping and driving contact point through a pair of opposed jaws to be plated by contact on an anode roller, the same describing a helical trace on the roller.
Abstract translation: 具有终止于羽毛边缘的曲线区域的连接器电镀接触点。 可选地,触头具有具有羽毛边缘的导电底部。 两个羽绒边金属都有一个凸起的中心部分。 接触件形成在具有一对相对的带的接触平板上,该对接带用于通过一对相对的夹爪驱动接触点,以通过接触在阳极辊上进行电镀,该阳极辊描述辊上的螺旋迹线。
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公开(公告)号:US4372825A
公开(公告)日:1983-02-08
申请号:US318953
申请日:1981-11-06
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
Abstract: Disclosed is a sparger in which there are a plurality of nozzles extending from a vertical sparger pipe, and alternating the vertical sparger pipes or sparger tubes have the nozzles at mid-stations between the adjacent sparger nozzles; with the entire sparger being directed to discharge the fluid to impinge upon the workpiece such as a printed circuit board at an acute angle preferably less than 90.degree.. The resulting pattern on the workpiece is a plurality of footprints, all overlapping a minimum amount on the target area. A further aspect of the invention is directed to having the spargers on one side of the workpiece direct fluid in a downstream direction, whereas the spargers on the opposite side of the workpiece direct the fluid in an upstream direction or contra to the movement of the workpiece such as a printed circuit board. With those spargers directed upstream, a deflector is desirably provided so that any workpieces such as printed circuit boards which cock along the path of motion will be deflected and not cause jamming. The method of the invention is directed to positioning a plurality of spargers in staggered relationship on opposite sides of workpieces, and further orienting the spargers on the opposite sides of the workpiece to discharge their fluids in the opposite direction.
Abstract translation: 公开了一种喷射器,其中存在从垂直喷射管延伸的多个喷嘴,并且垂直喷射管或喷射管交替地在相邻喷嘴之间的中间站处具有喷嘴; 整个喷射器被引导以使流体以锐角(优选小于90°)撞击在诸如印刷电路板的工件上。 工件上产生的图案是多个脚印,全部在目标区域上重叠最小。 本发明的另一方面涉及使喷射器在工件的一侧沿下游方向直接流动,而在工件的相反侧上的喷射器将流体沿上游方向引导或者与工件的移动相反 例如印刷电路板。 在这些喷射器指向上游的情况下,期望地设置偏转器,使得沿着运动路径旋转的任何工件诸如印刷电路板将被偏转并且不会引起卡纸。 本发明的方法涉及在工件的相对侧上以交错的关系定位多个喷射器,并且进一步将喷射器定位在工件的相对侧上以沿相反方向排出它们的流体。
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公开(公告)号:US4371422A
公开(公告)日:1983-02-01
申请号:US197073
申请日:1980-10-15
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
CPC classification number: H05K3/0085 , H05K3/068
Abstract: Disclosed is the continuous processing of flat workpieces such as printed circuit boards which are suspended by a hanger conveyorized for continuous horizontal transport. More specifically, the conveyorizing passes the workpieces through a plurality of chambers having slotted-end members, one such chamber spraying to remove the photoresist, and another such chamber spraying etching solution to remove the copper cladding. Each station has a slotted cover, and the conveyor suspends a plurality of workpiece holders, each of the holders being joined by chain links of an inert material which overlie the slot in the covers for the chambers. The photoresist chamber is provided with a continuous filter for continuously removing and filtering the sludge, thereby reducing the tendency of the removal solution to dilute and become ineffective. All of the chambers are modularized, and the system is compatible with continuous processing for the plating of the printed circuit boards.The method shown essentially provides for the continuous processing of printed circuit boards for the removal of photoresist and copper cladding, the sequence being variable. In addition, the printed circuit boards are constrained against lateral sway by providing a plurality of wires pitched steadily downwardly along the path of motion.
Abstract translation: 公开了通过用于连续水平传送的传送带的悬挂架悬挂的诸如印刷电路板的扁平工件的连续加工。 更具体地,传送带通过具有开槽端部件的多个室,一个这样的室喷射以去除光致抗蚀剂,另一个这样的室喷射蚀刻溶液以移除铜包层。 每个站具有开槽盖,并且输送机悬挂多个工件保持器,每个保持器通过惰性材料的链节连接,惰性材料覆盖在用于室的盖的槽中。 光致抗蚀剂室设置有连续过滤器,用于连续地除去和过滤污泥,从而降低去除溶液的稀释和变得无效的倾向。 所有的室都是模块化的,并且系统与印刷电路板的电镀的连续处理兼容。 所示的方法基本上提供用于去除光致抗蚀剂和铜包层的印刷电路板的连续处理,该顺序是可变的。 此外,印刷电路板通过提供沿着运动路径稳定地向下倾斜的多个电线来限制横向摆动。
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公开(公告)号:US4443304A
公开(公告)日:1984-04-17
申请号:US432186
申请日:1982-10-01
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
Abstract: Disclosed is a plating module and method in a cell which has linearly spaced vertical anodes, and intermediately positioned spargers which can be angularly adjusted with their nozzles impinging directly or at an acute angle on the printed circuit boards positioned at a mid-point in each cell. The printed circuit boards are suspended in clamped relationship to a cathode bar. The cathode bar, in turn, in each unit is coupled to a reciprocating power drive so that the same will move back and forth an optimum distance of at least the spacing between an anode and a sparger, or more particularly, half the spacing between two spargers. The method of the invention contemplates positioning boards to be plated, whether with copper or tin, interiorly of the unit in which the boards are reciprocated in agitation relationship with a plating solution into which an anodes are positioned. The boards are then permitted to reciprocate for a given period of time with a preselected current density. Thereafter they are removed and cleansed, and subsequently positioned into another reciprocatory-type unit for further plating and concluding the cycle. Desirably vertically staggered turbulent free jets are employed angled to accomplish a maximized mass transfer of solution onto the printed circuit boards. In a given embodiment, flow rates can be between 100 and 300 gallons per minute, and current densities between 50 and 200 amperes per square foot.
Abstract translation: 公开了一种具有线性间隔的垂直阳极的电池模块和方法,并且具有中间定位的喷射器,其可以通过其喷嘴在位于每个电池的中点的印刷电路板上直接或以锐角入射角度地调节 。 印刷电路板以与阴极棒夹紧的关系悬挂。 每个单元中的阴极棒又连接到往复式动力驱动器上,使得它们将来回移动至少在阳极和分布器之间的间隔的最佳距离,或者更特别地,两个之间的间距的一半 喷雾器 本发明的方法考虑了定位要被电镀的定位板,无论是铜或锡,其中板与其中阳极放置在其中的电镀溶液的搅动关系中的单元往复运动的单元内部。 然后允许板以预选的电流密度往复运动一段给定的时间。 此后,将它们除去并清洗,并随后定位成另一个往复式单元以进一步镀覆并结束循环。 倾向于垂直交错的湍流自由射流被倾斜以实现溶液到印刷电路板上的最大化传质。 在给定的实施方案中,流速可以在100至300加仑每分钟之间,电流密度在每平方英尺50至200安培之间。
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公开(公告)号:US4427019A
公开(公告)日:1984-01-24
申请号:US406199
申请日:1982-08-09
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
CPC classification number: H05K3/0085 , H05K3/068 , Y10S134/902
Abstract: Disclosed is the continuous processing of flat workpieces such as printed circuit boards which are suspended by a hanger conveyorized for continuous horizontal transport. More specifically, the conveyorizing passes the workpieces through a plurality of chambers having slotted-end members, one such chamber spraying to remove the photoresist, and another such chamber spraying etching solution to remove the copper cladding. Each station has a slotted cover, and the conveyor suspends a plurality of workpiece holders, each of the holders being joined by chain links of an inert material which overlie the slot in the covers for the chambers. The photoresist chamber is provided with a continuous filter for cntinuously removing and filtering the sludge, thereby reducing the tendency of the removal solution to dilute and become ineffective. All of the chambers are modularized, and the system is compatible with continuous processing for the plating of the printed circuit boards.
Abstract translation: 公开了通过用于连续水平传送的传送带的悬挂架悬挂的诸如印刷电路板的扁平工件的连续加工。 更具体地,传送带通过具有开槽端部件的多个室,一个这样的室喷射以去除光致抗蚀剂,另一个这样的室喷射蚀刻溶液以移除铜包层。 每个站具有开槽盖,并且输送机悬挂多个工件保持器,每个保持器通过惰性材料的链节连接,惰性材料覆盖在用于室的盖的槽中。 光致抗蚀剂室设置有连续过滤器,用于清除和过滤污泥,从而降低了去除溶液的稀释和变得无效的倾向。 所有的室都是模块化的,并且系统与印刷电路板的电镀的连续处理兼容。
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公开(公告)号:US4186062A
公开(公告)日:1980-01-29
申请号:US923939
申请日:1978-07-13
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
CPC classification number: H05K3/241 , C25D17/06 , C25D5/02 , C25D5/022 , C25D5/08 , H05K1/117 , H05K2203/0723
Abstract: A tab plater for purposes of stripping tin lead from contact tabs, and replating the same for further preservation and improved electrical contact with metal such as nickel and gold is shown having a plurality of processing stations. The printed circuit boards are passed through various stations where plating or stripping is undertaken and masked by means of the transport system comprising opposed resilient belts and means for sealingly engaging the printed circuit board at a line of demarcation. The printed circuit boards are passed over positioning stations to transfer from one location to another to insure precise positioning of the line of demarcation. The sparger fluid flow at the plating station is controlled by means of a venturi effect created by reversely flowing the fluid over a flow control section immediately adjacent and beneath the line of demarcation whereby selective depth control can be maintained with lower pressures of fluid thereby avoiding excess leakage at the ends of the printed circuit board where a gap exists before the belts form an impervious fluid barrier.
Abstract translation: 用于从接触片剥离锡铅并且将其替换为进一步保存并与金属(例如镍和金)的改善的电接触的片状印刷机被示出具有多个加工台。 印刷电路板通过各种工位,其中进行电镀或剥离,并通过包括相对的弹性带的输送系统和用于以划线线密封地接合印刷电路板的装置进行掩蔽。 印刷电路板通过定位台从一个位置传递到另一个位置,以确保划线线的精确定位。 在电镀站处的分布器流体流动通过文丘里效应来控制,该文丘里效应通过使流体在流动控制部分上相邻流动控制部分紧邻并在分界线下方而产生,从而可以用较低压力的流体维持选择性深度控制,从而避免过量 在带形成不透水流体屏障之前,在存在间隙的印刷电路板的端部处的泄漏。
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公开(公告)号:US4457515A
公开(公告)日:1984-07-03
申请号:US287268
申请日:1981-07-27
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
CPC classification number: H05K3/0085 , A46B9/02 , A46D1/00 , B05B15/0406 , F16J15/168 , F16J15/3288 , Y10S118/07
Abstract: Disclosed is a method and apparatus for positioning a pair of opposed brush assemblies in a gap defined by end baffles between process chambers. The brushes have a plurality of offset bristle clusters secured to a header, and the header is preferably angled so that the brushes will have a wiping action as a workpiece such as the printed circuit board passes between the bristles. A pair of brushes are employed with the opposed ends in overlapping relationship providing a wiping-type gate, and which permits the entrained fluid to drip down the bristle hairs and into the chamber from which the workpiece such as a printed circuit board is being removed. Optionally the brush bristles can be angled upwardly to incite a gravity assist for the entrained fluid dripping down toward the header of the brush and into the process tank.
Abstract translation: 公开了一种用于将一对相对的电刷组件定位在由处理腔室之间的端部挡板限定的间隙中的方法和装置。 刷子具有固定到集管的多个偏移刷毛簇,并且插头优选地成角度,使得刷子将具有作为工件的擦拭动作,例如印刷电路板在刷毛之间通过。 使用一对刷子,其相对的端部以重叠的关系提供擦拭式门,并且允许夹带的流体将刷毛吹入室中,其中诸如印刷电路板的工件被从其移除。 可选地,刷毛可以向上成角度以引导重力辅助,以使夹带的流体向下朝向刷子的头部并进入处理罐。
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公开(公告)号:US4401522A
公开(公告)日:1983-08-30
申请号:US192424
申请日:1980-09-29
Applicant: Adolph G. Buschow , Charles D. Eidschun
Inventor: Adolph G. Buschow , Charles D. Eidschun
CPC classification number: H05K3/241 , C25D17/00 , C25D17/06 , C25D5/02 , C25D7/00 , H05K3/07 , C25D17/004 , C25D17/02 , H05K2203/1518
Abstract: The present invention deals with the continuous metal exchange for workpieces such as a printed circuit board which can take place in a plating tank. The workpieces are conveyorized for continuous horizontal transport into and out of a plating tank. Opposite ends of the tank are provided with slots to receive and discharge the workpieces which are sealed, in the instance illustrated, by opposed rollers or an open slot of small area to prevent leakage in excess of the pump capacity. The workpieces are suspended at their upper portion by a non-conductive hanger, the lower portion of which is rendered conductive. When the workpiece enters the plating tank the conductive portion of the hanger suspending the workpiece from the conveyor, makes contact to energize bus bars thereby converting the workpiece to a cathode (or anode if metal is to be removed). A plating solution is inside of the tank and provided with anodes or cathodes energized for metal exchange. The method is directed to conveyorizing workpieces for continuous horizontal transport, sealing the opposite ends of a tank while providing for passing the workpieces through the seal at the ends of the tank, rendering the workpieces conductive while in the tank, and providing a fluid in the tank energized for metal exchange in ultimate contact with sufficient agitation (from the spargers) at the anodes and cathodes to prevent polarization during high speed plating.
Abstract translation: 本发明涉及可在电镀槽中发生的诸如印刷电路板的工件的连续金属交换。 工件被输送,用于连续水平运输进出电镀槽。 在罐的相对端设置有用于接收和排出工件的槽,在所示的情况下,通过相对的辊或小面积的开口狭缝来密封,以防止超过泵容量的泄漏。 工件通过非导电悬挂架在其上部悬挂,其下部导电。 当工件进入镀槽时,悬挂着工件的输送机的导电部分接触到母线供电,从而将工件转换成阴极(或者如果金属被去除的话)。 电镀溶液位于罐内,并设置有用于金属交换的阳极或阴极。 该方法涉及输送机工件以进行连续水平输送,密封罐的相对端,同时提供工件通过罐的端部处的密封件,使得工件在罐内导电,并且在该罐中提供流体 油箱通过金属交换,在阳极和阴极处充分搅动(来自喷雾器),以防止高速电镀过程中的极化。
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公开(公告)号:US4376684A
公开(公告)日:1983-03-15
申请号:US295714
申请日:1981-08-24
Applicant: Charles D. Eidschun
Inventor: Charles D. Eidschun
Abstract: Disclosed is a shielded plating cell which will permit continuous transfer of a printed circuit board by a single conveyor, whether chain-type, endless belt, or other unit is employed. The plating head and sparger assembly include a reverse flow chamber in which an anode is positioned thereby reversing the flow of the pressure fluid and creating a venturi effect in an area beneath a pair of shields which flexibly engage the printed circuit board and shield the upper portion as well as environment from the escape of spray. To assist in this shielding, an adjustable choke is provided so that the operator can manually balance the unit by shifting the choke to eliminate any pumping action which occurs in the delta formed at the ends of the printed circuit boards where the shields do not abruptly come together. Additionally, squeegee gates are provided at both ends of the cell to inhibit the migration of plating fluid outside the cell into related processing areas. The method is directed to the provision of those elements which permit balancing the choke to a point where pumping does not occur above the shields. In instances where fine adjustment can be made, the taping of the printed circuit board can be eliminated and the flexible shields serve the masking function as well.
Abstract translation: 公开了一种屏蔽电镀单元,其将允许通过单个输送机连续转印印刷电路板,无论是链式,环形带还是其他单元。 电镀头和喷射器组件包括反向流动室,其中定位阳极,从而使压力流体的流动反转,并在柔性地接合印刷电路板并屏蔽上部的一对屏蔽之下的区域中产生文丘里效应 以及环境从喷雾的逃脱。 为了帮助这种屏蔽,提供了一个可调节的扼流圈,使得操作者可以通过移动扼流圈手动地平衡该单元,以消除在印刷电路板的端部形成的三角形中发生的任何泵送动作,其中屏蔽件不会突然来 一起。 此外,在电池的两端设置刮板闸门,以抑制电镀液在电池外迁移到相关处理区域。 该方法旨在提供这些元件,其允许将扼流圈平衡到在屏蔽件之上不发生泵送的点。 在可以进行微调的情况下,可以消除印刷电路板的胶带,并且柔性屏蔽也用于掩蔽功能。
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