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:
Nov. 05, 1985
Filed:
Dec. 19, 1983
George Heys, Cambridge, OH (US);
Dennis R Coon, Byesville, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
A fixture for testing plated-through holes of a printed circuit board includes a probe board having a plurality of first spring-actuated probe assemblies arranged in a matrix on a uniform rectangular grid, a converter board having a plurality of second spring-actuated probe assemblies arranged to engage the plated-through holes of the printed circuit board being tested, the converter board having copper tracks located on its lower surface connecting the second probe assemblies with the first probe assemblies and an elastic cover member positioned over the fixture to provide an air-tight seal when vacuum is applied to move the printed circuit board and the converter board in a direction to move the first and second probe assemblies into engagement with the copper tracks and the plated-through holes respectively enabling the plated-through holes to be tested for continuity.