Patents by Inventor Andreas J. Boehm

Andreas J. Boehm 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: 9469453
    Abstract: A dispenser comprising a body with an outlet, and a closure for the outlet. The closure and the body are pivotally movable relative to each other between an open position in which the outlet is open and a closed position in which the closure closes the outlet. The closure and the body are adapted for locking engagement with each another in the closed position. The closure has a locking member for locking and unlocking the closure and the body in the closed position. A force applied on the locking member for unlocking urges the closure toward the open position. The dispenser preferably facilitates the application of a material to be dispensed to a desired location.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: October 18, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Alexander Walter, Marc Peuker, Bruce R. Broyles, Andreas J. Boehm
  • Publication number: 20160270879
    Abstract: A cartridge and a piston for storing and dispensing a two-component dental material. The cartridge and the piston have a cross-section which substantially correspond to a D-shape in which the perimeter of the D-shape is defined by a plurality of circle segments only. At least two of the circle segments are based on different radii. The invention helps maximizing the time period over which a dental material can be stored in the compartment.
    Type: Application
    Filed: November 3, 2014
    Publication date: September 22, 2016
    Inventor: Andreas J. BOEHM
  • Patent number: 9295530
    Abstract: A device for mixing and dispensing at least two flowable components comprises a housing front face with an outlet for the components and a piston having a piston front face. The piston is arranged such that the piston front face and the housing front face are facing each other. The piston front face and the housing front face are adapted to form a channel for the components between each other. The device is adapted to reduce the channel upon urging the piston front face and the housing front face against each other and thereby to displace the components to flow toward the outlet. The device facilitates mixing and dispensing a multi-component dental material.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Alexander Walter, Marc Peuker, Andreas J. Boehm, Mathias Bertl
  • Publication number: 20160058947
    Abstract: A syringe for dispensing a medicament comprises a cartridge, a plug and an activator member. The syringe comprises a main chamber containing a first liquid and an auxiliary chamber containing a second liquid. To activate the syringe and merging the first and second liquid to form the medicament the auxiliary chamber and the main chamber are connectable for fluid communication with each other. A movement of the activator member and/or the plug causes the second liquid to be transferred from the auxiliary chamber into the main chamber. The syringe helps facilitating the preparation of a medicament that has to be mixed from different liquids shortly prior to use.
    Type: Application
    Filed: April 24, 2014
    Publication date: March 3, 2016
    Inventors: Marc Peuke, Andreas J. Boehm
  • Publication number: 20160045283
    Abstract: A plunger assembly for a cartridge for dispensing dental material. The plunger assembly has a receptacle, an activator, and a passageway extending through the receptacle along a longitudinal axis. The passageway forms a chamber for storing at least a component of the dental material and has an outlet for the chamber. The activator has a piston for extruding the component from the chamber and a plug for the outlet. The activator is movable to unplug the outlet and to subsequently extrude the component in a single stroke. The plunger assembly helps for reliably emptying the chamber and helps facilitating dispensation of dental materials.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 18, 2016
    Inventors: Andreas J. Boehm, Marc Peuker, Arno Hohmann
  • Patent number: 9211168
    Abstract: Provided is a capsule for storing and dispensing dental material. The capsule comprises a cartridge for the dental material, and a nozzle. The nozzle being pivotable with respect to the cartridge between a first position in which the capsule is closed for storage and a second position in which the capsule is opened for dispensing the dental material. One of the nozzle and the cartridge comprises a bearing member and the other one of the nozzle and the cartridge comprises a bearing shell, wherein the bearing member and bearing shell form a pivot. Upon pivoting the nozzle from the first to the second position, the seal between the bearing member and the bearing shell is improved.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 15, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bruce R. Broyles, Marc Peuker, Sebastian Guggenmos, Andreas J. Boehm, Hubert Schloegl, Michael Knee, Werner Fichtl, John W. Dubbe, Arno Hohmann, Darin J. Meyertholen, Dean K. Reidt, Steven J. Maxa, Urs Mahnel
  • Publication number: 20150335395
    Abstract: A nozzle head (12) for a powder jet device (10) for use in applying dental material, the nozzle head (12) comprising: a first portion (16) and a second portion (18) transitioning into one another; the first portion (16) adjacent a first end (20) of the nozzle head (12) having a coupling (22) for removably connecting the nozzle head (12) to a hand piece (14) of the powder jet device (10); the second portion (18) adjacent a second end (26) of the nozzle head (12) forming a nozzle outlet (28) for the dental material; the second portion (18) comprising at least a first fluid channel (30) which is formed between the nozzle outlet (28) and a channel inlet (32); wherein the channel inlet (32) is arranged at the transition (34) between the first portion (16) and the second portion (18) between the nozzle outlet (28) and the coupling (22).
    Type: Application
    Filed: December 10, 2013
    Publication date: November 26, 2015
    Inventor: Andreas J. Boehm
  • Publication number: 20150329252
    Abstract: A dispenser comprising a body with an outlet, and a closure for the outlet. The closure and the body are pivotally movable relative to each other between an open position in which the outlet is open and a closed position in which the closure closes the outlet. The closure and the body are adapted for locking engagement with each another in the closed position. The closure has a locking member for locking and unlocking the closure and the body in the closed position. A force applied on the locking member for unlocking urges the closure toward the open position. The dispenser preferably facilitates the application of a material to be dispensed to a desired location.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventors: Alexander Walter, Marc Peuker, Bruce R. Broyles, Andreas J. Boehm
  • Publication number: 20150327952
    Abstract: A device (10) for dispensing a dental material comprises a nozzle head (12), a hand piece (14) and a locking mechanism (16) for locking the nozzle head (12) and the hand piece (14). The locking mechanism (16) comprises a snap connection (30) and a screw connection(32). The locking mechanism (16) is operable between: (iv) a locked position in which the snap connection (30) is engaged for retaining the nozzle head (12) and the hand piece (14) with each other and in which the screw connection (32) is disengaged; (v) a secured position in which the snap connection (30) is disengaged and in which the screw connection (32) is engaged for retaining the nozzle head (12) and the hand piece (14) with each other; (vi) a released position in which the snap connection (30) and the screw connection (32) are disengaged.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 19, 2015
    Inventors: Andreas J. BOEHM, Christian A. RICHTER
  • Patent number: 9131991
    Abstract: A dispensing device for a dental material includes a cartridge having an outlet nozzle which forms a passageway for the dental material. The dispensing device further includes a closure which is placeable on the outlet nozzle for sealing the cartridge. The closure includes a pin for extending into the passageway, and is further adapted to seal with an outer surface of the outlet nozzle. The dispensing device is further adapted such that the pin is displaceable from the passageway by dental material dispensed from the cartridge, where the displacement causes the closure to release from the outlet nozzle. The invention may provide for relatively easy operation of the dental dispensing device.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 15, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Alexander Walter, Marc Peuker, Andreas J. Boehm
  • Patent number: 9120606
    Abstract: A dispenser comprises a body with an outlet, and a closure for the outlet. The closure and the body are pivotally movable relative to each other between an open position in which the outlet is open and a closed position in which the closure closes the outlet. The closure and the body are adapted for locking engagement with each another in the closed position. The closure has a locking member for locking and unlocking the closure and the body in the closed position. A force applied on the locking member for unlocking urges the closure toward the open position. The dispenser preferably facilitates the application of a material to be dispensed to a desired location.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: September 1, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Alexander Walter, Marc Peuker, Bruce R. Broyles, Andreas J. Boehm
  • Publication number: 20150118646
    Abstract: An application tip for dispensing a dental material has a tubular dispensing end made of a plastic material. The dispensing end being formed of a circumferential wall having a thickness T1 and which forms a dispensing opening of a diameter Di1 and having a diameter-to-thickness-ratio Di1:T1 at the opening which is 13 or greater. The wall thickness increases in a direction away from the opening. The application tip preferably facilitates appropriately depositing the dental material.
    Type: Application
    Filed: May 6, 2013
    Publication date: April 30, 2015
    Inventors: Marc Peuker, Andreas J. Boehm
  • Publication number: 20150108166
    Abstract: A device for mixing and dispensing at least two flowable components comprises a housing front face with an outlet for the components and a piston having a piston front face. The piston is arranged such that the piston front face and the housing front face are facing each other. The piston front face and the housing front face are adapted to form a channel for the components between each other. The device is adapted to reduce the channel upon urging the piston front face and the housing front face against each other and thereby to displace the components to flow toward the outlet. The device facilitates mixing and dispensing a multi-component dental material.
    Type: Application
    Filed: March 6, 2013
    Publication date: April 23, 2015
    Inventors: Alexander Walter, Marc Peuker, Andreas J. Boehm, Mathias Bertl
  • Publication number: 20140158711
    Abstract: Provided is a cartridge assembly comprising a cartridge for containing a dental substance. The cartridge comprises a dispensing opening for the dental substance. Further the cartridge assembly comprises a piston having a receptacle for establishing a screw connection with a spindle for moving the piston for dispensing the dental substance. This assembly helps minimize costs in the manufacturing and use of dental cartridges and/or dental dispensing devices.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 12, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Marc Peuker, Helmut Pauser, Jens Gramann, Andreas J. Boehm, Manfred Harre
  • Publication number: 20140106299
    Abstract: A dispensing device for a dental material comprises a cartridge having an outlet nozzle which forms a passageway for the dental material. The dispensing device further comprises a closure which is placeable on the outlet nozzle for sealing the cartridge. The closure comprises a pin for extending into the passageway, and is further adapted to seal with an outer surface of the outlet nozzle. The dispensing device is further adapted such that the pin is displaceable from the passageway by dental material dispensed from the cartridge, wherein the displacement causes the closure to release from the outlet nozzle. The invention may provide for relatively easy operation of the dental dispensing device.
    Type: Application
    Filed: March 7, 2012
    Publication date: April 17, 2014
    Inventors: Alexander Walter, Marc Peuker, Andreas J. Boehm
  • Patent number: 8647115
    Abstract: A syringe for dispensing a multi-component material. The syringe can include a cartridge having a first end and a second end, and respective compartments for components of the multi-component material; a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and a plunger assembly that is movable into the syringe cartridge at the second end to dispense material from the first end. A connection between the static mixer and the first end of the syringe cartridge includes a flow-directing mechanism having a venting position in which the cartridge compartments are cut off from the static mixer and are in communication independently with respective venting outlets, and a dispensing position in which the cartridge compartments are in communication with the static mixer and are cut off from the venting outlets.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: February 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Andreas J. Boehm, Marc Peuker, Alexander Walter, Brigitte Rohmer
  • Patent number: 8453887
    Abstract: A vented piston (1) comprises a plunger (2) having a front side and a rear side, a venting passage (4) extending between the front side and the rear side, and a cap (7) located adjacent the front side. The cap is resiliently-biased by a spring (8) towards an open position in which air can pass through the venting passage from the front to the rear side of the plunger, and is movable from the open position into a closed position in which the cap closes the venting passage. The piston may be used in a storage chamber (10) of a dispensing system whereby air can be removed from the storage chamber by moving the plunger in the direction of a substance (12) stored in the chamber.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 4, 2013
    Assignee: 3M Innovative Properties Company
    Inventor: Andreas J. Boehm
  • Patent number: D739934
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: September 29, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bruce R. Broyles, Christopher J. Claypool, Greg E. Schrank, Steven J. Maxa, Andreas J. Boehm, Stefan Eckstein, Remus Feldman
  • Patent number: D754539
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: April 26, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Stefan Eckstein, Andreas J. Boehm, Marc Peuker
  • Patent number: D761954
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: July 19, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Stefan Eckstein, Andreas J. Boehm, Marc Peuker