Patents by Inventor Petri T. Rissanen

Petri T. Rissanen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Copper alloys to be used as brazing filler metals
    Patent number: 5378294
    Abstract: The invention relates to low-nickel copper alloys to be used as brazing filler metals, which alloys also contain phosphorus, tin and possibly small amounts of manganese. The alloys are produced by means of atomization methods. Their advantages are low liquidus temperature and narrow mushy zone, high joint strength and good corosion properties. The alloys are cadmium free and economical in price and they are mainly used for brazing copper and its alloys.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: January 3, 1995
    Assignee: Outokumpu Oy
    Inventor: Petri T. Rissanen
  • Copper alloys to be used as brazing filler metals
    Patent number: 5178827
    Abstract: The invention relates to low-nickel copper alloys to be used as brazing filler metals, which alloys also contain phosphor, tin and possibly small amounts of manganese. The alloys are produced by means of rapid solidification. Their advantages are low liquidus temperature and narrow mushy zone. The alloys are mainly used for brazing copper and its alloys.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: January 12, 1993
    Assignee: Outokumpu Oy
    Inventor: Petri T. Rissanen
  • Copper alloys to be used as brazing filler metals
    Patent number: 5130090
    Abstract: The invention relates to low-nickel copper alloys to be used as brazing filler metals, which alloys also contain phosphor, tin and possibly small amounts of manganese. The alloys are produced by means of rapid solidification. Their advantages are low liquidus temperature and narrow mushy zone. The alloys are mainly used for brazing copper and its alloys.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: July 14, 1992
    Assignee: Outokumpu Oy
    Inventor: Petri T. Rissanen