Patents by Inventor Willi Sprenger

Willi Sprenger 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).

  • Patent number: 4707591
    Abstract: An electrically heatable fixed rear window of a motor vehicle has resistance heating strips extending over part of the window area and a bus bar which electrically connects the resistance heating strips to each other and provides a contact on the window which cooperates with, and a counter-contact on the motor vehicle body which is connected to an electrical power source such as the motor vehicle battery.The counter-contact on the motor vehicle body comprises a compression spring-loaded pin which moves in the direction perpendicularly of the window surface, which is connected at its rear end to a power cable connected to the electrical power source and which is operatively connected to the bus bar at its front end surface.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: November 17, 1987
    Assignee: General Motors Corporation
    Inventor: Willi Sprenger
  • Patent number: 4561689
    Abstract: For the purpose of mounting a motor vehicle window, especially a windshield or rear window, into the body opening provided therefor, rotatable and fixable eccentric members attached to a body panel are being employed. The eccentric members are inserted into apertures provided in the body panel by means of their cylindrical portions and are adapted, when being turned, to move the windshield, after insertion of the same into the flange portions, upwardly into its final position. The turning of the eccentric members is accomplished by a special tool which may be provided with means for adjusting the torque. The windshield is fixed in this position by pins forced through the cylindrical portions of the eccentric members.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: December 31, 1985
    Assignee: General Motors Corporation
    Inventor: Willi Sprenger