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:
Apr. 13, 1982
Filed:
Nov. 21, 1980
David F Kirwan, West Simsbury, CT (US);
John R Naumec, Willimantic, CT (US);
United Technologies Corp., Hartford, CT (US);
Abstract
Disclosed is an electron beam drilling system wherein an optical fiber link is used to prevent deviant drilling. The position of fixtures within a vacuum chamber is monitored by alignable fiber segments. The junctions of the segments form couples which transmit light from a source to detectors when the fixtures are properly positioned. The alignable fiber segments are mounted on and under the fixtures in a manner which integrally provides protection of the junctions from metal spatter. The light source and detectors are mounted external to the chamber; seals are provided where the fiber segments pass through the chamber wall. The detectors signal a control system to only allow beam output when the fixtures and parts thereon are properly positioned.