Patents by Inventor William P. Wehrle

William P. Wehrle 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).

  • Milling solution and method
    Patent number: 5248386
    Abstract: A substantially nitrate-free solution for milling products of refractory metals, especially titanium, which milling solution comprises: (a) about 20-100 g/l hydrofluoric acid; (b) a hydrogen inhibitor selected from the group comprising of: about 55-650 g/l of sodium chlorate, about 180-650 g/l of ammonium peroxysulfate, and at least about 10 g/l of hydrogen peroxide; and (c) a balance of water and impurities. A method for chemically milling, etching and/or pickling metal products, such as titanium alloy forgings, with the aforementioned solution is also disclosed.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: September 28, 1993
    Assignee: Aluminum Company of America
    Inventors: LeRoy E. Dastolfo, Jr., Gary P. Tarcy, William P. Wehrle, Mark E. Davis