Patents by Inventor Friedrich Heindl, deceased

Friedrich Heindl, deceased 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).

  • Closing unit for form tools of an injection molding machine
    Patent number: 5585126
    Abstract: A closing unit 1 for mold tools 6 of injection molding machines is provided with a stationary mold support- or base-plate 2, a mold support plate 3 whose spacing can be adjusted relative to the stationary mold support plate by displacement thereof, as well as a drive support plate 4, which is connected to the stationary mold support- or base plate 2 by traction links 5, for instance struts. The traction links 5 can be used at the same time as slide guides for the mobile mold support plate 3 and an electromotor 8 serves as an actuation device for the mobile mold mounting plate 3, which electromotor 18 repositions one or several toggle levers 6 and 7 alternately between a kinked position and a stretched position. The toggle lever system or systems are installed between the drive support plate 4 and the mobile mold molding plate 3 and the mold tool 6 is maintained under closing stress or tension between the two mold support plates 2 and 3 in the stretched position of the toggle lever system or systems 7.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: December 17, 1996
    Assignee: Battenfeld Kunststoffmaschinen Ges.m.b.H.
    Inventors: Friedrich Heindl, deceased, Harald Bleier