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. 03, 1995
Filed:
Oct. 05, 1992
Donald G David, Jr, Rio Rancho, NM (US);
John A Garrett, Gilbert, AZ (US);
Other;
Abstract
Inker apparatus includes an ink reservoir and a chamber communicating with the reservoir and in which chamber there is a piston movable against a spring bias. The chamber in which the piston is disposed is in turn connected to a needle through which ink is delivered. A solenoid is adjacent to the reservoir and chamber and is actuated in response to the finding of a defective die under test. The piston moves along with the reservoir and the chamber, and continues to move by inertia or kinetic energy after the reservoir and chamber have ceased their movement. The continued movement of the piston causes the displacement of ink from the chamber and from a hollow needle extending from the chamber and which in turn results in ink being placed on the defective die.