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:
Sep. 28, 1993
Filed:
Jun. 16, 1992
MTU Motoren-und Turbinen- Union Munchen GmbH, Munich, DE;
Abstract
An etch solution for the removal of metallic layers, which provide protection against corrosion by hot gases, and of deposits resulting from hot gas reactions on turbine blades in power units comprising a salt solution and an inhibitor. The salt solution consists of a hydrogen sulfate in the amount of 5 to 45% by weight and the inhibitor is present in the amount of 0.5 to 10% by weight. The total amount of the hydrogen sulfate and inhibitor is present with at least 50% by weight of water based on the total etch solution. Using this etch solution, layers preferably comprising MCrAlY are removed from turbine blades comprised of alloys of Ti, Co or Ni.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile