Specialized metallurgical processes – compositions for use therei – Compositions – Welding rod or electrode defined by composition
Reexamination Certificate
2005-03-25
2008-09-16
King, Roy (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Compositions
Welding rod or electrode defined by composition
C075S304000, C420S457000
Reexamination Certificate
active
07425229
ABSTRACT:
A chromium-free welding consumable and a method of welding stainless steel to reduce the presence of chromium emissions. The consumable is made from an alloy that reduces the emission of chromium during a welding process, and include predominantly nickel, with between approximately five and twenty five percent by weight copper, up to approximately five percent by weight of palladium, up to approximately ten percent by weight of molybdenum and up to five percent non-copper alloying ingredients. Welding consumables made from the alloy are particularly well-suited for welding austenitic stainless steels, such as type 304 stainless steel. The method involves using chromium-free weld filler material with a stainless steel base material.
REFERENCES:
patent: 2815282 (1957-12-01), Rhodes et al.
patent: 3450527 (1969-06-01), Tanzman
patent: 3909253 (1975-09-01), Asnis et al.
patent: 4149063 (1979-04-01), Bishel
patent: 4218245 (1980-08-01), Batova et al.
patent: 4497772 (1985-02-01), Mizuhara et al.
patent: RE33186 (1990-03-01), Mori et al.
patent: 5171968 (1992-12-01), Bates et al.
patent: 5236661 (1993-08-01), Hidaka et al.
patent: 6613159 (2003-09-01), Koch et al.
patent: 976 660 (1964-12-01), None
patent: 55-027481 (1980-02-01), None
patent: 56-095490 (1981-08-01), None
patent: 2001-047235 (2001-02-01), None
patent: 2 098 247 (1997-12-01), None
English abstract of JP 56-095490.
English abstract of JP 55-027481.
English abstract of RU 2 098 247.
Machine Translation and English abstract of JP 2001047235, published Feb. 20, 2001.
Frankel Gerald S.
Lippold John C.
Dinsmore & Shohl LLP
King Roy
McGuthry-Banks Tima M
The Ohio State University
LandOfFree
Chromium-free welding consumable does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chromium-free welding consumable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromium-free welding consumable will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3985412