Patents Assigned to Linhoff & Thesenfitz Maschinenbau GmbH
  • Method of forming a storage tank for bitumen in the liquid state
    Patent number: 4555283
    Abstract: A storage tank for liquid bitumen including a steel shell having heat insulation adjacent to its interior surface. The insulation is glass foam. Preferably, the insulation is in the form of glass foam panels which are initially arranged with gaps between them. When the tank is filled for the first time, the liquid bitumen penetrates into the gaps and solidifies therein to permanently interconnect the glass foam panels. A glass foam insulating cover floats on the surface of the liquid bitumen, and a heating unit is located within the tank.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: November 26, 1985
    Assignee: Linhoff & Thesenfitz Maschinenbau GmbH
    Inventor: Klaus Thesenfitz
  • Equipment for heating pulverulent products
    Patent number: 4400155
    Abstract: Equipment for heating pulverulent products, including a relatively flat, vertically standing vessel for receiving the product, and a rotatable agitator whose axis of rotation is coincident with the longitudinal axis of the vessel. There are heating facilities in the bottom of the vessel. With these heating facilities, the bottom and side wall of the vessel are heated. The top of the vessel is insulated. The product is introduced into the vessel through the top and discharged in the region of the bottom of the vessel.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: August 23, 1983
    Assignee: Linhoff & Thesenfitz Maschinenbau GmbH
    Inventor: Klaus Thesenfitz