Patents by Inventor Helga Apel

Helga Apel 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).

  • Publication number: 20090308349
    Abstract: A throttle valve device includes at least one throttle body (1, 2, 3), a throttle valve (4) and a throttle valve shaft (5), with which the throttle valve (4) is adjustably arranged in the throttle body (1, 2, 3). In order for these parts to be able to function more trouble free and be manufactured at a more favorable price, the throttle body comprises an inner cylinder (1) made of a hard, smooth material around which at least partially an outer cylinder (2) made of thermoplastics is formed.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 17, 2009
    Inventor: Helga Apel