Patents by Inventor Werner Mannschedel

Werner Mannschedel 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).

  • Publication number: 20060204934
    Abstract: The present invention is concerned with a gutta-percha point for filling a tooth root canal system, which is characterised in that in that it has at least one portion having a cross-sectional area with a non-circular circumference and in that the surface of the gutta-percha point has a different roughness in different sections.
    Type: Application
    Filed: February 17, 2006
    Publication date: September 14, 2006
    Inventors: Werner Mannschedel, Barbara Muller
  • Publication number: 20060188842
    Abstract: Compression cap for tooth stumps and method of drying a tooth stump The present invention relates to a compression cap (1) for tooth stumps (5) and to a method of drying a tooth stump (5). The compression cap (1) for tooth stumps (5) has a hollow space (7) for receiving an absorbent foam mass (8) surrounding a tooth stump (5). The hollow space (7) has an opening (9) at one end for receiving the reagents (10, 11) for the foam mass (8) and for receiving the tooth stump (5) and is surrounded by walls whose wall thickness (d) is reduced in the direction towards the opening (9). The rim (14) at the opening has a spatial profile (15) of such a kind that the rim (14) at the opening constitutes a seal (16) when the compression cap (1 ) is in the state pressed against the interdental papilla (17) of a tooth stump (5) in the region of the gingival pocket (18) for the sulcus (19).
    Type: Application
    Filed: February 23, 2006
    Publication date: August 24, 2006
    Applicant: Coltene/Whaledent GmbH & Co. KG
    Inventors: Werner Mannschedel, Barbara Muller
  • Publication number: 20050230422
    Abstract: The invention relates to a delivery system for fluid substances, which comprises a plunger-type syringe in the form of a cartridge having at least one injectate chamber, which injectate chamber is provided with an injection plunger, and an attachment mounted on the cartridge at its delivery-side end, characterised in that the attachment is mounted on the cartridge by means of a releasable snap closure.
    Type: Application
    Filed: April 17, 2003
    Publication date: October 20, 2005
    Applicant: COLTENE/WHALEDENT GMBH + CO. KG
    Inventors: Barbara Muller, Werner Mannschedel
  • Patent number: 6902399
    Abstract: The cleaning instrument (10) comprises a head portion (10) and, adjacent thereto, a cleaning portion (14) having a shank (20), which is provided with bristles (22) on its external surface. In order that especially the tooth root canal or also a tooth interstice can be reliably cleaned using the cleaning instrument (10), the shank (20) is of integral construction with the bristles (22).
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: June 7, 2005
    Assignee: Roeko GmbH & Co. KG
    Inventor: Werner Mannschedel
  • Publication number: 20050106533
    Abstract: A sheet-like rubber dam covering means (10) and/or a strip securing means of a rubber dam is produced from a flexible, elastic material. In order to provide a covering means and/or a securing means that has, especially, excellent properties in respect of tearing and stretching behaviour, the material chosen is an elastic thermo-plastic material.
    Type: Application
    Filed: February 25, 2003
    Publication date: May 19, 2005
    Inventors: Werner Mannschedel, Barbara Muller
  • Publication number: 20050096608
    Abstract: The present invention relates to an aspiration cannula for the aspiration of fluid substances, especially saliva and blood, during dento-medical treatment.
    Type: Application
    Filed: October 8, 2004
    Publication date: May 5, 2005
    Inventors: Werner Mannschedel, Barbara Muller
  • Publication number: 20020172922
    Abstract: The cleaning instrument (10) comprises a head portion (10) and, adjacent thereto, a cleaning portion (14) having a shank (20), which is provided with bristles (22) on its external surface. In order that especially the tooth root canal or also a tooth interstice can be reliably cleaned using the cleaning instrument (10), the shank (20) is of integral construction with the bristles (22).
    Type: Application
    Filed: May 7, 2002
    Publication date: November 21, 2002
    Inventor: Werner Mannschedel
  • Patent number: 6254392
    Abstract: The invention relates to a filling means (1) for root canals in humans and animals, having a proximal end (5) and a distal end (4), which filling means comprises an elongate electrically conductive element (2) sheathed in an isoprene-based matrix (3), characterized in the distal end of the electrically conductive element lies exposed. The invention relates also to a method of preparing the filing means according to the invention.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: July 3, 2001
    Assignee: ROEKO GmbH
    Inventors: Werner Mannschedel, Rolf Herrmann
  • Patent number: 6162056
    Abstract: The invention relates to a composition for filling root canals in humans or animals, comprising: (a) at least one chlorhexidine derivative of at least one carboxylic acid; (b) one or more carriers based on trans-polyisoprene, gutta-percha, balata, silicone, caoutchouc, acrylate, or mixtures thereof; (c) optionally one or more fillers; and (d) optionally one or more X-ray contrast substances.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: December 19, 2000
    Assignee: Roeko GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Patent number: 6126446
    Abstract: The present invention relates to a composition for filling tooth root canals comprising an isoprene-based powder and at least one sealer. The composition can be prepared by cooling an isoprene-based material, adding any additives that may be present before, during or after comminution, comminuting and then adding a sealer.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: October 3, 2000
    Assignee: Roeko GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Patent number: 6120294
    Abstract: The invention relates to a kit having two components which harden upon mixing and are suitable for a root-filling material. Further, the invention relates to a pin on the basis of gutta-percha as an optional further component of the kit.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: September 19, 2000
    Assignee: ROEKO GmbH & Co Dentalerzeugnisse
    Inventors: Jurgen Engelbrecht, Jurgen Eberlein, Werner Mannschedel, Wolfram Ziegler
  • Patent number: 5961250
    Abstract: The invention relates to a substance mixture for a material for a cofferdam, to the material, and to the use and preparation thereof.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: October 5, 1999
    Assignee: ROEKO GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Patent number: 5925179
    Abstract: The invention relates to an elastic-plastic element comprising an isoprene-based matrix and at least one filler, the element being suitable for filling root canals of humans or animals and being characterised by calcium hydroxide, incorporated into the matrix, as filler. The invention relates also to a method of preparing the element according to the invention.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Roeko GmbH + Co. Dentalerzeugnisse
    Inventor: Werner Mannschedel