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:
Aug. 23, 1988
Filed:
Nov. 18, 1986
Franz W Popp, Wedemark, DE;
Gunter Geisert, Leimen-Gauangelloch, DE;
Nuken GmbH, , DE;
Abstract
The invention relates to an apparatus for automatic or remotely operated welding of the cover and/or the bottom of the walls of a container for receiving and storing radioactive fuel elements and wastes in a hot cell by employing the narrow joint welding technique, comprising at least one sensor sensing the course of the weld line between the container wall and the container cover and/or bottom effective to assist at least one three-dimensionally movable welding head controlled by control means utilizing signals supplied by the sensor to guide it along the joint for producing a continuous welding seam consisting of a plurality of super-imposed and offset weld beads or passes, respectively. to obtain improved welding results and for safe and trouble-free automatic and/or remotely operated welding, the loaded container including the attached cover and/or bottom is caused to rotate about its longitudinal axis, and the joint between the container wall and cover and/or bottom is caused to move past the sensors and the welding heads. Upon completion of the welding operation the welding slag is removed. Sensors are provided for the lateral and vertical guidance of the welding head. The welding is effected under flux. A chisel and a nailer are employed to loosen the welding slag which is removed from the weld by a suction nozzle.