Patents by Inventor Reiner Kramer

Reiner Kramer 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).

  • Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
    Patent number: 7329106
    Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: February 12, 2008
    Assignee: Artemis Kautschuk-und Kunststoff-Tecknik GmbH
    Inventors: Sebastian Jäger, Reiner Kramer
  • Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
    Publication number: 20070053783
    Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 8, 2007
    Inventors: Sebastian Jaget, Reiner Kramer
  • Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
    Patent number: 7131827
    Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: November 7, 2006
    Assignee: Artemis Kautschuk-und Kunststoff-Technik GmbH
    Inventors: Sebastian Jäger, Reiner Kramer
  • Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
    Publication number: 20050106052
    Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 19, 2005
    Inventors: Sebastian Jager, Reiner Kramer