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:
Jan. 26, 1988
Filed:
Feb. 20, 1987
Geoffrey M Weil, Cambridge, MA (US);
KeyTek Instrument Corp., Wilmington, MA (US);
Abstract
Apparatus for applying a test static-electric discharge from a test tip to equipment under test in two modes, which apparatus includes a capacitor, a power supply, and a normally closed relay for connecting the high side of the capacitor to the tip. Means are provided for actuating the relay to open and close, and means are provided for actuating the power supply to charge the capacitor. In an air-discharge mode, the power supply is actuated for charging the capacitor while the relay is closed and thus not energized. For direct-injection mode operation, the apparatus includes a timing circuit interconnected so that the relay is opened a finite delay time before power supply is actuated to charge the capacitor, the relay remaining open until the capacitor is charged, and thereafter the relay automatically closes to permit discharge of the capacitor.