Patents by Inventor Fred W. McMann

Fred W. McMann 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).

  • Free machining stainless steel and components for automotive fuel and exhaust systems made therefrom
    Patent number: 5707586
    Abstract: A ferritic stainless steel alloy is disclosed having a unique combination of machinability, cold-formability, weldability, and corrosion resistance. The disclosed alloy has the following weight percent composition.______________________________________ wt. % ______________________________________ Carbon 0.08 max. Manganese 1.00 max. Silicon 1.00 max. Phosphorus 0.045 max. Sulfur 0.030-0.30 Chromium 10.5-11.75 Molybdenum 0.50 max. Copper 0.50 max. Nickel 0.50 max. Aluminum 0.10 max. Columbium 10 .times. C to 0.80 ______________________________________The balance is essentially iron. The novel alloy is particularly suited for components used in automotive fuel and exhaust systems. A number of such components made from the aforesaid alloy are also disclosed.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: January 13, 1998
    Assignee: CRS Holdings, Inc.
    Inventor: Fred W. McMann