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. 23, 2010
Filed:
Apr. 26, 2007
Doug J. Garcia, Beaverton, OR (US);
Doug J. Garcia, Beaverton, OR (US);
Electro Scientific Industries, Inc., Portland, OR (US);
Abstract
An apparatus for testing electric components supported on a test plate for transport along a of travel path through a test station includes an electrical contactor at the station for contacting the plate surface and at least one electronic component transported to the test station by the test plate for testing. An adjustable force applicator supplies contact pressure to the contactor to apply a substantially constant force over a large working travel range. The applicator can include an air cylinder having a force applying pin applying force to a position located between a working point of the contactor and the pivot point such that the applied force variation is reduced as a result of a lever reduction ratio between the working point and the pin position.