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:
Feb. 06, 1990
Filed:
Jun. 26, 1989
Daniel Hosten, Handzame, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
An electroplating apparatus, which has the workpieces, such as printed circuit boards, being conducted through an electrolyte solution in a horizontal path, has cathodic contacting by contact clamps, which move with the workpiece through the device. In order to guarantee a reliable supply of cathode current with a low thermal heating and a low wear of the contacts, which are also simultaneously resistant to the corrosion of the conducting parts, a live rail is provided that comprises a core composed of a material of high electrical conductivity, such as copper, and is covered by an envelope composed of a material having a high resistance to corrosion, such as titanium. Contact springs, preferably composed of titanium, are connected to the live rail in a mechanical and electrical conductive fashion, such as by spot welding, and engage each of the contact clamps as they move along the path.