Recorders – Markers and/or driving means therefor – Stylus feature
Patent
1977-09-12
1979-04-24
Larson, Lowell A.
Recorders
Markers and/or driving means therefor
Stylus feature
346163, 29592R, G01D 1508
Patent
active
041515358
ABSTRACT:
An electro-erosion head is provided which is formed from thin sheets of electrically conductive material. Each thin sheet of electrically conductive material has at least one narrow extension extending from an edge thereof to form an electrode. A connector tab extends from another edge thereof. Each sheet is coated with a thin covering of an insulative material except in the area of the connector tab which is tin-lead coated for eventual soldering. The sheets are stacked to form a laminated head and are encapsulated in a plastic-like material which is ground down at the ends of the electrodes so that they are exposed so as to be able to complete the electrical path therefrom and perform the electro-erosion function. The electrodes are located at the same location on each of said sheets so that when stacked they form a column of electrodes each capable of forming a spot in the electro-erosion process. The connector tabs are spaced from one another at the other edge of the sheets so as to make each connector tab available for a solder connection and thus give the required connection fanout.
REFERENCES:
patent: 3396457 (1968-08-01), Nordin
patent: 3756852 (1973-09-01), Scheetz et al.
patent: 3955204 (1976-05-01), Anton
patent: 3961336 (1976-06-01), Walker et al.
patent: 4052714 (1977-10-01), Peterson
International Business Machines - Corporation
Larson Lowell A.
Sweeney, Jr. Harold H.
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