Patents by Inventor Robert G. Challman

Robert G. Challman 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: 20230104177
    Abstract: A cleaning article includes: a first panel having: a first fiber layer; and a first substrate attached to the first fiber layer by a first connection type; and a second panel having: a second fiber layer; and a second substrate attached to the second fiber layer by the first connection type. The first connection type includes a first connection line in parallel with a second connection line, the first and second connection lines together straddling a center line of a respective panel that extends in an axial direction. The first panel is attached to the second panel by a plurality of spot connections so as to create a pocket between the first panel and the second panel.
    Type: Application
    Filed: December 7, 2022
    Publication date: April 6, 2023
    Applicant: Carl Freudenberg KG
    Inventors: Friedel Winterling, Norbert Weis, Stephen Dickel, Robert G Challman, Sabine Boroyevich, Robert Ancheta, Doug Metzel, Eric Martin
  • Patent number: 11564549
    Abstract: A dusting tool having a flexible skeletal element including a base, from which four elongated arms extend. The elongated arms have a base end and a distal end. The base ends extend from the base and being spaced apart from one another at the base. The arms being flexible and resilient. A plurality of cross-members extend between the elongated arms, a plurality of living hinges being disposed between the plurality of cross-members and the elongated arms. A force applied to at least one of the elongated arms is transmitted to the other of the elongated arm by the plurality of cross-members and the plurality of living hinges.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: January 31, 2023
    Assignee: Carl Freudenberg KG
    Inventors: Robert Ancheta, Doug Metzel, Eric Martin, Robert G. Challman
  • Patent number: 9050850
    Abstract: A micro motion poppet valve for a writing instrument provides delivery of ink with large pigment particles to a porous writing nib with minimal nib movement and relatively light actuation forces. The micro motion poppet valve includes a nib connected to a valve stem, the valve stem being connected to a valve plug. A valve body is integrally formed with a biasing element, which biases the valve stem towards a closed position. When a user presses the nib against a writing surface the valve plug moves away from a raised valve seat located on the biasing element to allow ink to flow from an ink reservoir to the nib.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: June 9, 2015
    Assignee: SANFORD, L.P.
    Inventors: Christoph Gillum, Christopher Matice, David Parrott, Anup Paul, Haskell Simpkins, Robert G. Challman, James F. Yoder
  • Patent number: 8568047
    Abstract: A retractable instrument in accordance with the disclosure advantageously has a simple construction and fewer pieces or sub-assemblies than known retractable instruments. The retractable instrument includes a barrel that encloses a tool holder. The tool holder has an extension, and a tool extending from the distal end of the extension. A valve selectively covers the tool to protect the tool from environmental conditions. A biasing element is disposed between the valve and the tool holder, the biasing element biases the valve away from the tool holder. A movable closure assembly retains the valve on the extension and selectively allows the lid to open and close. The closure assembly includes a closure ring and a retention ring connected by one or more closure arms. The retention ring is disposed on the tool holder and the retention ring is prevented from sliding off of the tool holder by a retention stop.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: October 29, 2013
    Assignee: Sanford, L.P.
    Inventors: Robert G. Challman, Jaime Arenas
  • Publication number: 20130170887
    Abstract: A micro motion poppet valve for a writing instrument provides delivery of ink with large pigment particles to a porous writing nib with minimal nib movement and relatively light actuation forces. The micro motion poppet valve includes a nib connected to a valve stem, the valve stem being connected to a valve plug. A valve body is integrally formed with a biasing element, which biases the valve stem towards a closed position. When a user presses the nib against a writing surface the valve plug moves away from a raised valve seat located on the biasing element to allow ink to flow from an ink reservoir to the nib.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Applicant: SANFORD, L.P.
    Inventors: Christoph Gillum, Christopher Matice, David Parrott, Anup Paul, Haskell Simpkins, Robert G. Challman, James F. Yoder
  • Patent number: 8393814
    Abstract: A retractable instrument in accordance with the disclosure advantageously has a simple construction and fewer pieces or sub-assemblies than known retractable instruments. The retractable instrument includes a barrel that encloses a tool holder. The tool holder has an extension, and a tool extending from the distal end of the extension. A valve selectively covers the tool to protect the tool from environmental conditions. A biasing element is disposed between the valve and the tool holder, the biasing element biases the valve away from the tool holder. A movable closure assembly retains the valve on the extension and selectively allows the lid to open and close. The closure assembly includes a closure ring and a retention ring connected by one or more closure arms. The retention ring is disposed on the tool holder and the retention ring is prevented from sliding off of the tool holder by a retention stop.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 12, 2013
    Assignee: Sanford, L.P.
    Inventors: Robert G. Challman, Jaime Arenas
  • Publication number: 20120328352
    Abstract: A retractable instrument in accordance with the disclosure advantageously has a simple construction and fewer pieces or sub-assemblies than known retractable instruments. The retractable instrument includes a barrel that encloses a tool holder. The tool holder has an extension, and a tool extending from the distal end of the extension. A valve selectively covers the tool to protect the tool from environmental conditions. A biasing element is disposed between the valve and the tool holder, the biasing element biases the valve away from the tool holder. A movable closure assembly retains the valve on the extension and selectively allows the lid to open and close. The closure assembly includes a closure ring and a retention ring connected by one or more closure arms. The retention ring is disposed on the tool holder and the retention ring is prevented from sliding off of the tool holder by a retention stop.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Applicant: SANFORD, L.P.
    Inventors: Robert G. Challman, Jaime Arenas
  • Patent number: 7775734
    Abstract: A closure assembly for a retractable instrument having an applicator element comprises at least two fingers and a sleeve operatively coupled with the at least two fingers. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state around the applicator element. Protraction of the sleeve and relative movement between the fingers and the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the closure assembly opens to expose an applicator element such that the applicator element is in an application position.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: August 17, 2010
    Assignee: Sanford L.P.
    Inventors: David A. Dylkiewicz, Robert G. Challman
  • Publication number: 20100196080
    Abstract: A retractable instrument in accordance with the disclosure advantageously has a simple construction and fewer pieces or sub-assemblies than known retractable instruments. The retractable instrument includes a barrel that encloses a tool holder. The tool holder has an extension, and a tool extending from the distal end of the extension. A valve selectively covers the tool to protect the tool from environmental conditions. A biasing element is disposed between the valve and the tool holder, the biasing element biases the valve away from the tool holder. A movable closure assembly retains the valve on the extension and selectively allows the lid to open and close. The closure assembly includes a closure ring and a retention ring connected by one or more closure arms. The retention ring is disposed on the tool holder and the retention ring is prevented from sliding off of the tool holder by a retention stop.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Applicant: SANFORD, L.P.
    Inventors: ROBERT G. CHALLMAN, Jaime Arenas
  • Publication number: 20090142124
    Abstract: A closure assembly for a retractable instrument having an applicator element comprises at least two fingers and a sleeve operatively coupled with the at least two fingers. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state around the applicator element. Protraction of the sleeve and relative movement between the fingers and the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the closure assembly opens to expose an applicator element such that the applicator element is in an application position.
    Type: Application
    Filed: February 9, 2009
    Publication date: June 4, 2009
    Applicant: SANFORD L.P.
    Inventors: David A. Dylkiewicz, Robert G. Challman
  • Patent number: 7488130
    Abstract: A seal assembly for a retractable instrument having an applicator element is disclosed, the seal assembly comprising a base, at least two fingers attached to the base, and a sleeve surrounding the base. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state and seal the applicator element. Protraction of the base relative to the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the seal assembly opens to expose an applicator element such that the applicator element is in an application position; however, none of the elements of the seal assembly contacts the applicator element to transfer fluid from the applicator element, thereby eliminating potential degradation of the seal.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: February 10, 2009
    Assignee: Sanford, L.P.
    Inventors: David A. Dylkiewicz, Robert G. Challman
  • Publication number: 20080187389
    Abstract: A seal assembly for a retractable instrument having an applicator element is disclosed, the seal assembly comprising a base, at least two fingers attached to the base, and a sleeve surrounding the base. When the retractable instrument is in a retracted position, the sleeve constrains the fingers such that the fingers are in a fully closed state and seal the applicator element. Protraction of the base relative to the sleeve allows the fingers to open, thereby exposing the applicator element. Thus, the seal assembly opens to expose an applicator element such that the applicator element is in an application position; however, none of the elements of the seal assembly contacts the applicator element to transfer fluid from the applicator element, thereby eliminating potential degradation of the seal.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 7, 2008
    Applicant: Sanford, L.P.
    Inventors: David A. Dylkiewicz, Robert G. Challman