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:
Oct. 30, 1990
Filed:
Aug. 28, 1989
Guenter Doemens, Holzkirchen, DE;
Thomas Rose, Munich, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Apparatus for electrical function testing of wiring matrices, particularly of printed circuit boards. In the electrical function testing of wiring matrices, particularly of printed circuit boards, the number of required leads and switch elements can be drastically reduced. In the present apparatus, every measuring locations of the printed circuit board can be selected by an associated busbar and by an intermediate mask that prevents the contacting of non-selected measuring locations. The busbars preferably are orientated transversely relative to the principal direction of the wiring of the printed circuit board. The bus bar interconnecting a number of elements, each of the contact elements being a test probe.