Patents by Inventor Frizt Eckhardt

Frizt Eckhardt 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).

  • Incandescent lamp with mechanically attached base
    Patent number: 4371807
    Abstract: To attach the base to a lamp without using base cement, adhesive or the l, the base is made as a two-part element, one being an outer base sleeve and the other an inner insert snugly matching the inner diameter of the base sleeve or shell. The insert has an annular bottom and longitudinally extending flaps with inwardly bent wings which resiliently press and engage the press seal of the lamp, thereby holding the socket in position.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: February 1, 1983
    Assignee: Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen mbH
    Inventor: Frizt Eckhardt