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. 05, 1982
Filed:
May. 08, 1979
Peter Krauss, Erlangen, DE;
Ewald Muller, Neunkirchen, DE;
Horst Porner, Erlangen, DE;
Robert Weber, Uttenreuth, DE;
Kraftwerk Union Aktiengesellschaft, Mulheim an der Ruhr, DE;
Abstract
Heat-treating apparatus for prolonging the life of a pressure vessel formed of thermally resistant material subject to time-dependent structural changes due to neutron flux includes a heating device positionable within a pressure vessel adjacent to a wall portion thereof which is to be heat-treated; and a mounting support for the heating device including a hollow substantially cylindrical mounting member. Also included is a support for the mounting member by which the latter is insertable into and removable from the pressure vessel through an opening in the pressure vessel. The apparatus additionally includes a device for flooding the interior of the pressure vessel with protective liquid preparatory to inserting and removing the mounting member and the heating device from the pressure vessel, and a device for draining the protective liquid from the interior of the pressure vessel prior to actuation of the heating device for heating the adjacent wall portion. The mounting member is an insulating cylinder having outer circumferential contact surfaces and is positionable so that the contact surfaces form sealing contact with the inner peripheral surface of the pressure vessel in a manner that the insulating cylinder defines an annular heating space located adjacent the pressure-vessel wall portion to be treated.