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:
Jun. 07, 1977
Filed:
Feb. 10, 1975
Otto Tuscher, Munich, DT;
Johann Tewich, Ottobrunn, DT;
Willibald Wittich, deceased, LATE OF Ottobrunn, DT;
Messerschmitt-Bolkow-Blohm GmbH, Munich, DT;
Abstract
In forming the inner wall for the combustion chamber and/or thrust nozzles of an liquid rocket engine which is shaped with inwardly directed projections to form cooling ducts closed outwardly by the outer wall, a reinforcing layer is electroplated at least on the radially inner surfaces of the inwardly directed projections. The inner wall is rotatably supported within an electrolyte bath with the material-depositing electrode located on the central axis of the inner wall and only the surface to receive the reinforcing layer is located below the surface of the bath. The reinforcing layer is provided only over a part of the axially extending length of the inner wall and a tapering transition section is provided from the radially inner surface of the reinforcing layer to the inner surface of the inner wall by gradually lifting or lowering the inner wall within the electrolyte bath during the electroplating operation.