Patents by Inventor Gerhard Broder

Gerhard Broder 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: 4094048
    Abstract: A method for hot metal forming of workpieces with at least two secondary adjacent form elements lying non-symmetrically to the axis of the main form element and slightly spaced from each other, particularly for the manufacture of crankshafts, whereby a rod-shaped starting material is warmed in the range of the secondary adjacent form elements to be formed thereon and a material bulging accumulation is produced in common for all of the adjacent form elements by means of an axial upsetting or compression. The adjacent form elements are shaped by drop-forging with a spacing from one another which is enlarged with respect to the final form, and after the flash trimming of the latter intermediate shape, the final form is produced by compression of the form part which lies between the secondary adjacent form elements with a simultaneous calibration of the final spacing.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: June 13, 1978
    Assignee: Franz Berrenberg
    Inventor: Gerhard Broder
  • Patent number: 3955493
    Abstract: A friction disc spindle press which has a countershaft with two side discs rotatably but axially nondisplaceably connected to the end portions respectively of the countershaft which latter is axially displaceably mounted in the press frame. Each end of the countershaft, by means of a self-aligning radial bearing and a self-aligning axial bearing is journaled in a displaceable bushing which, in its turn, is displaceably guided in the press frame.
    Type: Grant
    Filed: August 19, 1974
    Date of Patent: May 11, 1976
    Assignee: Franz Berrenberg
    Inventors: Harald Hany, Gerhard Broder