Metal working – Means to assemble or disassemble – Film or tape cartridge
Reexamination Certificate
1999-10-22
2001-05-29
Echols, P. W. (Department: 3726)
Metal working
Means to assemble or disassemble
Film or tape cartridge
C083S105000, C083S106000, C083S102000, C083S150000, C156S502000, C156S510000, C156S512000, C156S159000, C228S051000
Reexamination Certificate
active
06237217
ABSTRACT:
TECHNICAL FIELD AND BACKGROUND OF THE INVENTION
Strip-type webs may comprise lengthwise in panel positions a plurality of panel fields which have the same or differing linear extensions and are stringed together in one part. The strip is e.g. a support strip of plastics material, such as polyester, paper or the like of constant thickness and extends in one part full-length over all panel fields. In each panel field the support web is provided only on part of the aeral field extension with a protruding layer or coating on one side only, or on both sides. The layer is constant in thickness and/or the layer is a protruding function/control member. The thickness of the translucent to transparent support web is less than a tenth or five hundredths of a millimeter. Compared thereto the thickness of the layer is smaller and that of the function member is greater.
The support film or foil is electrically insulating. The layer is electrically conducting and made of a metal such as copper or aluminum. The function member is an electronic memory chip having a side length of less than 10 mm or 5 mm. The terminals of this member are electrically conductively connected to separate counter contacts of the layer. The layer constitutes for the silicon chip or integrated circuit an antenna which receives and/or transmits RF signals. The signals are utilized by the electric circuit of the unit as small electric currents for contactless reading or writing digitized data from or into the electronic memory. The transponder unit can be without an electric battery or capacitor or it may comprise such function units in a lowprofile arrangement in the scope of the cited thickness. Transponder units find application in the field of electronic item security, origin marking and the like. The transponder units are suitable as a coating component or intermediate layer in other marking or authorization items such as air travel tickets, baggage tags, security documents, package labels, chip cards or the like. The coating is deposited by evaporating. The circuit configuration is etched photochemically or printed. Thereafter the memory or Silicon chip is fixed so that its terminals are connected to the antenna connectors.
Such a web may repeatedly include unwanted panel fields or second sections, namely defective transponder units which are not readable or writeable upon and thus are unsuitable for further processing. Thus there is a need to exclude such sections or defects from the panel position within the web before the web or panel fields are incorporated in a laminate, such as sticker material, or in substrates such as paper or plastics laminates to produce the finished product. The latter is then a rolled up or zig-zag piled web, such as a label web, a sticker web or a paper laminate. The finished product may also be single sheets each including at least one transponder unit or the like. It is conceivable to detect the unwanted sections not before the product is finished and to reject them. Preferably these sections are withdrawn prior to being incorporated in the finished product, namely rejected from the web so that it contains only the desired first sections as panel fields with no unwanted sections. Such a “cleaned” web may then be processed by machining or fully automatically for producing the finished product without containing these unwanted sections.
OBJECTS OF THE INVENTION
An object of the invention is to provide an apparatus or a method with which a web may be altered so that sections of a second quality contained in its field pattern can be replaced by field sections of a first quality. Another object is to permit elimination of defective transponder units from the field pattern so that a use web or a strip results which contains substantially fewer defective units in the array pattern than before, or exclusively non-defective units. Still a further object is to permit that the apparatus is operated at high speed or semi- or fully automatically. Another object is to provide simple design and easy operability of the apparatus. Still another object is to facilitate checking satisfactory operation.
SUMMARY OF THE INVENTION
According to the invention the apparatus comprises an apparatus base or a stationary base frame with a removal station which has means or tools for eliminating the second sections from the field arrangement or for stringing first sections together at a close spacing where before a larger spacing existed. The web section could be transferred from the field pattern into a plane directly adjoining the web by a double Z-fold and could then be totally covered by the string of field sections or remain compounded in the web. Otherwise the section does not remain compounded in the web, but is totally disconnected from the web with or without previous folding. This results in severed edges opposing each other in the web or support layer. The edges are perpendicular to the length extension of the web. The edges are fixedly interconnected by an overlap seam or a butt seam to reassume a continuous web. This use web then contains exclusively the wanted first sections and is shorter by the eliminated portions.
After eliminating each second section, direct mutual splicing of those field sections is done which previously adjoined the second section on both sides. This is done in a splicing station by welding, bonding or the like. The splice may be made with or without addition of a material, for example adhesive tape. The jointing point is spaced from the severing point as least possible. Thus all web parts before and after severing always need to be moved only in one and the same direction and over minimum distances for stringing together. Upstream and downstream of these two points as well as before and after severing, the web is permanently positionally secured or moved parallel to its web plane and to its length direction only by clamping or by positive engagement in a lengthwise perforation. The same web conveyor may serve for both the feed motion of the unsevered web and also of the web ends while approaching each other or the like.
A detector detects the web fields to be extracted while the web moves or traverses the stations. The detector conducts an appropriate signal to control means which track the arrival of the web section in the removal station and which conduct control signals to powered drives of this station for extracting and stringing. Such drives are separate for the severing tools, the splicing tools and each of the web conveyors on both sides of the severing or splicing point and thus are controllable independently of each other. The control means coordinate all of these drives fully automatically. Thus, e.g. in sequence the web transport is halted on arrival of the leading severing zone of the web section in the severing plane. Then a first severing is done. Then both parted web ends are advanced commonly or one after the other until the trailing parting zone arrives in the severing plane. Then the second severing is done. Then the thus freed web section is rejected from the web plane. Then the upstream web end is approached to the stationary other or downstream web end to abut or overlap. Then the upstream web end is relocked. Then splicing of the stationarily adjoined web ends is done in the jointing plane. In conclusion both stringed web ends are advanced commonly until on arrival of the next unwanted section this working cycle is repeated. The sensor for registering the web sections is on the upstream side directly juxtaposed with the working plane of the removal station or with the associated clamping or engaging plane of the conveyor. Another such sensor may also be provided downstream thereof for rechecking after stringing of the web sections.
Particularly when the web is processed with a non-horizontal or with a vertical longitudinal center plane the web is laterally aligned directly before entering the cited stations and/or after exiting therefrom. Aligning is done precisely and dynamically relative to the base. For this purpose a web deflection executes aligni
Bohn Martin
Scheller Wolfgang
Akerman & Senterfitt
bielomatik Leuze GmbH & Co.
Echols P. W.
Hong John C.
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