Patents by Inventor Alexander T. Chenvainu

Alexander T. Chenvainu 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: 8695149
    Abstract: Tooth cleaning devices. An embodiment of a tooth cleaning device includes: an elongated head sized to fit in an oral cavity. The elongated head having a first surface and a neck extending from the head. A first tooth cleaning element having a plurality of upstanding wiping members extends upward from below the first surface and extends radially outward from a center of the first tooth cleaning element. Each upstanding wiping member has a free outermost edge that extends upwards substantially from the first surface to the top of the wiping member. A plurality of upstanding arcuate shaped second tooth cleaning elements secured to the head and located outboard of the first tooth cleaning element are also provided. In addition, a plurality of upstanding third tooth cleaning elements are secured to the head and border an edge of the first surface. The third tooth cleaning elements have a circular cross-sectional area.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 15, 2014
    Assignee: Braun GmbH
    Inventors: Phillip M. Braun, William R. Brown, Jr., Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: 8621698
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member and a plurality of bristles or tufts of bristles extending from the support member, the bristles or bristle tufts having different lengths. The contour of the bristles may be selected to allow substantially all of the bristles to contact the dentition during brushing.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: January 7, 2014
    Assignee: Braun GmbH
    Inventors: Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: 8444416
    Abstract: Dual valves are described herein. The dual valves have a plurality of lumens disposed within a unitary body. The dual valves can be used, for example, in personal care products such as toothbrushes and razors to dispense fluids such as dentifrice and shaving aids.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: May 21, 2013
    Assignee: Braun GmbH
    Inventors: Alexander T. Chenvainu, Thomas A. Christman, Manfred Klawuhn
  • Patent number: 8317424
    Abstract: Oral care devices are provided that include a first component and a second component removably engaged with the first component; the first and second components having a respective fluid passageway extending therethrough, the respective passageways capable of fluid communication while the first and second components are engaged; and at least one of the first and second components including a sealing member constructed to allow fluid communication between the first and second passageways when the first and second passageways are engaged and to close the associated passageway when the first and second components are disengaged. Oral care devices are also provided that include a replaceable and refillable cartridge.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: November 27, 2012
    Assignee: The Gillette Company
    Inventors: Alexander T. Chenvainu, Thomas A. Christman, Jeremy Ducharme, Mark E. Farrell
  • Publication number: 20110179595
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member and a plurality of bristles or tufts of bristles extending from the support member, the bristles or bristle tufts having different lengths. The contour of the bristles may be selected to allow substantially all of the bristles to contact the dentition during brushing.
    Type: Application
    Filed: April 6, 2011
    Publication date: July 28, 2011
    Inventors: Alexander T. Chenvainu, Thomas A. Christman
  • Publication number: 20110173765
    Abstract: Tooth cleaning devices. An embodiment of a tooth cleaning device includes: an elongated head sized to fit in an oral cavity. The elongated head having a first surface and a neck extending from the head. A first tooth cleaning element having a plurality of upstanding wiping members extends upward from below the first surface and extends radially outward from a center of the first tooth cleaning element. Each upstanding wiping member has a free outermost edge that extends upwards substantially from the first surface to the top of the wiping member. A plurality of upstanding arcuate shaped second tooth cleaning elements secured to the head and located outboard of the first tooth cleaning element are also provided. In addition, a plurality of upstanding third tooth cleaning elements are secured to the head and border an edge of the first surface. The third tooth cleaning elements have a circular cross-sectional area.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 21, 2011
    Applicant: THE GILLETTE COMPANY
    Inventors: Phillip M. Braun, William R. Brown, JR., Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: 7975344
    Abstract: A toothbrush has a handle and a head part, on which bristle filaments and at least one flexible cleaning element are arranged. The at least one flexible cleaning element is arranged on a carrier element which consists of a hard material and is connected to the head part. A process for producing such a toothbrush is also disclosed.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: July 12, 2011
    Assignee: The Gillette Company
    Inventors: Phillip M. Braun, Alexander T. Chenvainu
  • Patent number: 7958589
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 14, 2011
    Assignee: The Gillette Company
    Inventors: Phillip M. Braun, William R. Brown, Jr., Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: 7941886
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member and a plurality of bristles or tufts of bristles extending from the support member, the bristles or bristle tufts having different lengths. The contour of the bristles may be selected to allow substantially all of the bristles to contact the dentition during brushing.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 17, 2011
    Assignee: Braun GmbH
    Inventors: Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: 7934284
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member, a resilient member extending from the support member, and a plurality of tufts of bristles extending from the support member and at least partially surrounding the member. The resilient member may be cup-shaped, fan-shaped, or textured.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: May 3, 2011
    Assignee: Braun GmbH
    Inventors: Phillip M. Braun, William R. Brown, Jr., Alexander T. Chenvainu, Thomas A. Christman
  • Publication number: 20100218378
    Abstract: Dual valves are described herein. The dual valves have a plurality of lumens disposed within a unitary body. The dual valves can be used, for example, in personal care products such as toothbrushes and razors to dispense fluids such as dentifrice and shaving aids.
    Type: Application
    Filed: May 11, 2010
    Publication date: September 2, 2010
    Inventors: Alexander T. Chenvainu, Thomas A. Christman, Mafred Klawuhn
  • Publication number: 20090282628
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided.
    Type: Application
    Filed: June 12, 2009
    Publication date: November 19, 2009
    Applicant: THE GILLETTE COMPANY
    Inventors: Phillip M. Braun, William R. Brown, JR., Alexander T. Chenvainu, Thomas A. Christman
  • Publication number: 20090172900
    Abstract: A toothbrush head comprises a first surface, a second outer surface opposite the first surface and an opening defined therebetween; a plurality of first cleaning elements extending from the first surface; and a carrier including a restricted end and a second cleaning element opposite the restricted end, the carrier movably mounted within the opening and the second cleaning element movable relative to the first surface.
    Type: Application
    Filed: August 6, 2008
    Publication date: July 9, 2009
    Inventors: William R. Brown, JR., Thomas A. Christman, Alexander T. Chenvainu, Phillip M. Braun, Karen L. Claire-Zimmet, Mark S. Meadows
  • Patent number: 6852262
    Abstract: Methods of manufacturing razor cartridges are provided. One method includes loading a support portion of a supported blade into an elongated blade slot defined by a core member, the core member being configured to define a portion of a molding cavity defining the shape of the cartridge housing; and delivering a resin to the molding cavity to form the housing and capture a portion of the blade in the resin. In another method, a plurality of razor cartridges are manufactured substantially simultaneously by (a) removably mounting each blade on a core member; (b) placing each core member in a molding cavity; and (c) delivering a resin to the molding cavities to form at least a portion of the cartridge housing and capture a portion of the blade in the resin.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: February 8, 2005
    Assignee: The Gillette Company
    Inventors: William R. Brown, Jr., William C. Carson, Alexander T. Chenvainu, Thomas A. Christman, Kenneth E. Johnson, Charles P. Kiricoples, Alejandro Lee, Cardy J. Louis, Helge Zimmet
  • Patent number: 6839968
    Abstract: Shaving systems are provided including an elongated blade and a plastic housing, the ends of the blade being captured in the plastic housing.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: January 11, 2005
    Assignee: The Gillette Company
    Inventors: William R. Brown, Jr., William C. Carson, Alexander T. Chenvainu, Thomas A. Christman, Kenneth E. Johnson, Charles P. Kiricoples, Alejandro Lee, Cardy J. Louis, Helge Zimmet
  • Patent number: 6826797
    Abstract: Oral devices are provided, including oral brushes that include bristle tufts and a rotatable member having radially extending protrusions constructed to wedge between a user's teeth and, among other things, cause compression of the papilla.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: December 7, 2004
    Assignee: Gillette Canada Company
    Inventors: Alexander T. Chenvainu, Thomas A. Christman, Amit Birla
  • Publication number: 20040154112
    Abstract: Toothbrush heads, e.g., for power toothbrushes, are provided. The toothbrush heads include a support member, a resilient member extending from the support member, and a plurality of tufts of bristles extending from the support member and at least partially surrounding the member. The resilient member may be cup-shaped, fan-shaped, or textured.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Inventors: Phillip M. Braun, William R. Brown, Alexander T. Chenvainu, Thomas A. Christman
  • Publication number: 20030208907
    Abstract: Shaving systems are provided including an elongated blade and a plastic housing, the ends of the blade being captured in the plastic housing.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 13, 2003
    Inventors: William R. Brown, William C. Carson, Alexander T. Chenvainu, Thomas A. Christman, Kenneth E. Johnson, Charles P. Kiricoples, Alejandro Lee, Cardy J. Louis, Helge Zimmet
  • Patent number: D501605
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: February 8, 2005
    Assignee: The Gillette Company
    Inventors: William R. Brown, Jr., Alexander T. Chenvainu, Thomas A. Christman
  • Patent number: D526487
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: August 15, 2006
    Assignee: The Gillette Company
    Inventors: Alexander T. Chenvainu, Thomas A. Christman, Duy Phong Vu, Roland Ullmann