Patents by Inventor Dietmar Sprenger

Dietmar Sprenger 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: 10730111
    Abstract: A container includes at least two interconnected parts which are connected to one another at least in some regions by a thermally sprayed layer. At least one part is formed of a refractory metal or a refractory metal alloy. The container makes it possible to provide great variety, both with regard to form and dimensions of the container, which is impermeable to ceramic melts even under high operating temperatures. A method for producing a container is also provided.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: August 4, 2020
    Assignee: Plansee SE
    Inventors: Dietmar Sprenger, Bernhard Lang, Martin Kathrein
  • Patent number: 10415141
    Abstract: A process for producing a layer or a body built up of layers. A process gas which has a pressure of >10 bar is accelerated in a convergent-divergent nozzle and a coating material which is formed by particles and is composed of Mo, W, an Mo-based alloy or a W-based alloy is injected into the process gas. The particles are at least partly present as aggregates and/or agglomerates. It is possible to produce dense layers and components in this way. We also describe layers and components having a microstructure with cold-deformed grains having a high aspect ratio.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 17, 2019
    Assignee: Plansee SE
    Inventors: Michael O'Sullivan, Martin Kathrein, Gerhard Leichtfried, Thomas Hosp, Bernhard Lang, Dietmar Sprenger
  • Publication number: 20190255619
    Abstract: A container includes at least two interconnected parts which are connected to one another at least in some regions by a thermally sprayed layer. At least one part is formed of a refractory metal or a refractory metal alloy. The container makes it possible to provide great variety, both with regard to form and dimensions of the container, which is impermeable to ceramic melts even under high operating temperatures. A method for producing a container is also provided.
    Type: Application
    Filed: June 16, 2016
    Publication date: August 22, 2019
    Applicant: PLANSEE SE
    Inventors: DIETMAR SPRENGER, BERNHARD LANG, MARTIN KATHREIN
  • Publication number: 20170183780
    Abstract: A process for producing a layer or a body built up of layers. A process gas which has a pressure of >10 bar is accelerated in a convergent-divergent nozzle and a coating material which is formed by particles and is composed of Mo, W, an Mo-based alloy or a W-based alloy is injected into the process gas. The particles are at least partly present as aggregates and/or agglomerates. It is possible to produce dense layers and components in this way. We also describe layers and components having a microstructure with cold-deformed grains having a high aspect ratio.
    Type: Application
    Filed: June 30, 2015
    Publication date: June 29, 2017
    Inventors: MICHAEL O'SULLIVAN, MARTIN KATHREIN, GERHARD LEICHTFRIED, THOMAS HOSP, BERNHARD LANG, DIETMAR SPRENGER
  • Patent number: 9686822
    Abstract: A glass-melting electrode has a cooling device. The glass-melting electrode has an electrode body with a blind hole, and the cooling device has a cooling tube which can be inserted into the blind hole in order to feed coolant into the blind hole. The cooling device has a flow distributor with at least three outlet openings. The flow distributor is arranged at an end of the cooling tube which has been inserted into the blind hole, such that coolant flows through the flow distributor into the blind hole.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 20, 2017
    Assignee: Plansee SE
    Inventors: Helmut Perktold, Dietmar Sprenger, Hannes Traxler
  • Publication number: 20150245413
    Abstract: A glass-melting electrode has a cooling device. The glass-melting electrode has an electrode body with a blind hole, and the cooling device has a cooling tube which can be inserted into the blind hole in order to feed coolant into the blind hole. The cooling device has a flow distributor with at least three outlet openings. The flow distributor is arranged at an end of the cooling tube which has been inserted into the blind hole, such that coolant flows through the flow distributor into the blind hole.
    Type: Application
    Filed: October 18, 2013
    Publication date: August 27, 2015
    Applicant: Plansee SE
    Inventors: Helmut Perktold, Dietmar Sprenger, Hannes Traxler
  • Patent number: 6132812
    Abstract: The invention pertains to a method for the production of an anode for X-ray tubes, and the invention also pertains to the resulting anode. In the invention, a coating that emits X-ray radiation is applied by inductive vacuum plasma spraying onto the base element. Using this method, an improved fatigue crack resistance and a reduced roughening of the coating on the anode is achieved.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: October 17, 2000
    Assignee: Schwarzkopf Technologies Corp.
    Inventors: Peter Rodhammer, Dietmar Sprenger
  • Patent number: 5993280
    Abstract: The invention pertains to a method for manufacturing a rotary anode assembly for an X-ray tube. According to the invention, a base element made of graphite is joined in a first step as a blank with excess dimensions to a shaft by material bonding. Then the further processing of the rotary anode assembly takes place by mechanical machining to nearly final-form dimensions and by application of the focal track coating, wherein the axis of rotation of the shaft is utilized as the reference for the performance of the mechanical machining.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: November 30, 1999
    Assignee: Schwarzkopf Technologies
    Inventors: Peter Rodhammer, Dietmar Sprenger
  • Patent number: 4949281
    Abstract: The invention utilizes polynomials, where the graphic objects are predetermined in the form of reference contours in contour coordinates. The generation process involves subdividing the length of each contour segment into a multiple of curve segments each, preferably a straight line. The coordinate points associated with the respective curve segments are compared with those of the given contour segment and the distance between them is determined. If a predetermined distance between them is exceeded, the coordinate location on the contour segment which is at the greatest distance from the straight line is chosen. A curve defined by the use of parametric spline functions is then laid between the starting and end point and incorporating the chosen base point. At a time when the predetermined distance no longer is exceeded, the base points assigned are stored in a memory.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: August 14, 1990
    Assignee: H. Berthold AG
    Inventors: Franz Hillenbrand, Klaus Schroer, Frank Rebs, Michael Dlabka, Dietmar Sprenger