The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1994
Filed:
Aug. 20, 1992
Bernhard Schonherr, Offenbach, DE;
Thomas Vogt, Kahl, DE;
Reiner Gertmann, Linsengericht, DE;
Helmut Grimm, Darmstadt, DE;
Gerard Lobig, Frankfurt, DE;
Martin Hornung, Momlingen, DE;
Leybold Aktiengesellschaft, Hanau, DE;
Abstract
A coating material to be evaporated in an evaporator cell disposed in a vacuum chamber is fed in the form of a wire to the evaporator cell in accordance with the depth of the molten bath, by a wire transport including a motor-driven shaft or roller and a counter-roller mounted on a movably journaled lever which in turn is movable via an electromagnetic actuator against the force of a spring means. A wire feed tube is arranged between the wire transport which draws fusible wire from a remote supply and feeds it to the evaporator boat where the wire is evaporated for coating a band-type substrate. The feed tube has a straight section which receives the wire concentrically from the transport and a gooseneck section toward said evaporator boat which twice deflects the wire to provide three points of contact with the inner wall of the tube, thus accurately positioning the wire while preventing clogging of the outlet orifice.