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. 18, 1989
Filed:
Apr. 15, 1987
Applicant:
Inventors:
Timothy A Wertz, Manahawkin, NJ (US);
Gilbert A Saltzman, Howell, NJ (US);
Ira L Friedman, Rumson, NJ (US);
Assignee:
Metallurgical Industries, Inc., Tinton Falls, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ; F01D / ;
U.S. Cl.
CPC ...
416192 ; 2915688 ; 2940207 ; 2940218 ; 29530 ;
Abstract
The shrouded turbine blade is provided with a wear resistant surface on the seals as well as along the abutment faces including the notched edges. The wear surfaces are characterized in being metallurgically bonded to the base material of the shroud without significant dilution by the base material. This is accomplished by using transparent plasma arc welding at a low amperage and a low temperature. The wear resistant surface can be of a material different from the base material of the shroud proper.