Patents by Inventor Otto Appel

Otto Appel 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).

  • Process for temperature-control of preforms and temperature-control device
    Patent number: 6287507
    Abstract: The method serves for tempering preforms made of a thermoplastic material. The preforms are provided for blow deformation into containers. The preform is provided with a temperature profile along the periphery. The temperature profile is produced in that striplike regions extending in the direction of the longitudinal axis of the preform are heated differentially. Stepwise tempering is carried out for successively timed thermal conditioning of various regions of the preform.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: September 11, 2001
    Assignee: Krupp Corpoplast Maschinenbau GmbH
    Inventors: Otto Appel, Karl-Heinz Balkau, Wolf Jaksztat