Patents by Inventor Elena Pavlovna Sekretoya

Elena Pavlovna Sekretoya 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).

  • Method and tool for the manufacture of a built-up camshaft
    Patent number: 5992017
    Abstract: A built-up camshaft having a carrying tube and working members is manufactured by attaching the carrying tube to the working members using a tool. The working members have a mounting opening where a plurality of longitudinal "V" shaped splines are located. The working members are placed on the tube and the tube is expanded mechanically using a tool by applying pressure from the inside until the splines of the working members are pressed into the body of the tube. The tube is expanded by the tool so as to form at least three oval-shaped protrusions on the outer surface of the tube. The protrusions are uniformly distributed around the circumference of the tube and are at least wide enough to engage two adjacent splines.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: November 30, 1999
    Inventors: Alexei Petrovich Grafchev, Mikhail Fedorovich Shiryaev, Elena Pavlovna Sekretoya, Evgeny Petrovich Tsiberev, Georgy Vladimirovich Linetsky, Adolf Veniaminovich Skoblo