Patents by Inventor Reinhart Ratheiser

Reinhart Ratheiser 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 manufacturing reinforced duroplastic pipes in a centrifugal process and installation for carrying out the process
    Patent number: 5354526
    Abstract: To eliminate the fluctuations in the precision of the material distribution which could not be avoided when manufacturing pipes in the centrifugal moulding process with the prior art installations, a new process and an installation for carrying out the process is proposed. This has at least two cylindrical centrifugal drums (1) serving as moulds and an injection carriage (12) which is displaceable in two directions perpendicular to each other, with a feed arm (11).
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: October 11, 1994
    Assignee: Hobas Engineering AG
    Inventors: Ralf Jost, Reinhart Ratheiser