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Title: Arrangement for the fluid treatment, especially etching, of objects in assembly-line-like fashion
Claims: What is claimed as new and desired to be protected by Letters Patent is set forth in the appended 1. An arrangement for the fluid treatment, particularly etching, of objects, particularly printed circuits, mold sections, and the like, in assembly-line-like fashion, comprising, in combination, a closed treatment fluid supply chamber; a first treatment chamber located above said treatment fluid supply chamber; at least one additional treatment chamber located above said first treatment chamber, said treatment chambers being separated from each other by separating walls, each of said treatment chambers having a side wall; an intermediate chamber between said treatment chambers and partly bounded by said separating walls, said intermediate chamber spacing said treatment chambers from one another; conveyor means for conveying objects along a first predetermined path leading through said first treatment chamber at a first speed, and along a second predetermined path leading through said additional treatment chamber at a second speed; treatment fluid pumping and emitting means operative for pumping treatment fluid up from said treatment fluid supply chamber and for discharging the thusly pumped treatment fluid onto objects in both said first and said additional treatment chambers; control equipment in said intermediate chamber for controlling the operation of the arrangement; and at least one observation and access window of trapezoidal shape mounted in each respective side wall for sliding with respect thereto in a predetermined direction between a closed and an open position and having marginal portions diverging in said direction and engaging said side wall when said window is in said closed position thereof, whereas a slight movement of said window in said direction dissociates said marginal portions from said side wall so that movement of said window towards said open position is facilitated even when said window is jammed in said side wall. 2. An arrangement as defined in claim 1, and further including means for regulating the concentration of treatment fluid in said treatment fluid supply chamber. 3. An arrangement as defined in claim 1, wherein said treatment chambers and said treatment fluid supply chamber are all substantially in open communication with each other. 4. An arrangement as defined in claim 1, wherein said first speed is different from said second speed. 5. An arrangement as defined in claim 1, and further including heating means for heating the fluid in said treatment fluid supply tank. 6. An arrangement as defined in claim 1, and further including cooling means for cooling the fluid in said treatment fluid supply tank. 7. An arrangement as defined in claim 1, wherein said conveyor means is comprised of a single drive motor. 8. An arrangement as defined in claim 1, wherein said conveyor means is comprised of a first drive motor for the conveying of objects along said first path and a second drive motor for the conveying of objects along said second path. 9. An arrangement as defined in claim 1, wherein said treatment fluid pumping and emitting means is comprised of at least one fluid discharge member in at least one of said treatment chambers, and wherein said fluid discharge member is mounted for reciprocating movement in the respective treatment chamber, and further including a motor in said intermediate chamber connected to said fluid discharge member and operative for reciprocating said fluid discharge member. 10. An arrangement as defined in claim 1, wherein said arrangement is comprised of a plurality of treatment fluid supply chambers arranged in succession, a plurality of first treatment chambers each located above a respective one of said treatment fluid supply chambers, a plurality of additional treatment chambers each located above a respective one of said first treatment chambers, and a plurality of treatment fluid pumping and emitting means each operative for pumping treatment fluid up from a respective one of said treatment fluid supply chambers and for discharging the thusly pumped treatment fluid onto objects in the respective ones of said first and additional treatment chambers, and wherein said first path leads through successive ones of said first chambers and wherein said second path leads through successive ones of said additional chambers. 11. An arrangement as defined in claim 10, wherein said paths are both elongated straight paths. 12. An arrangement as defined in claim 10, wherein said paths are angled paths. 13. An arrangement as defined in claim 10, wherein each of said treatment chambers has a side wall provided with a trapezoidal sliding observation window. 14. An arrangement as defined in claim 1, wherein said treatment chambers are enclosed in a common housing and in communication with each other but partially separated from each other by said separating walls. Other info: Inventors: Herrmann, Gunther (Furth, DT) Pill, Adam (Auenwald-Mittelbruden, DT) Application Number: 479994 Filing Date: 1974-06-17 Publication_date: 1976-07-06 Assignee: Pill; Adam (Auenwald-Mittelbruden, DT) Primary Class(es): 134/83 134/113, 134/154, 156/345.2, 156/345.21, 156/345.22 Other Classes: US Patent Ref:
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