Patents Assigned to Shakespeare Company
  • Patent number: 10875963
    Abstract: Powder compositions for laser sintering. Nylon copolymer compositions are described which provide enhanced performance in processing and finished products when used in 3D laser sintering processes.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: December 29, 2020
    Assignee: SHAKESPEARE COMPANY LLC
    Inventors: Saumitra Bhargava, Alfred Oren Jessee, Yuhong Wu
  • Publication number: 20200317865
    Abstract: The disclosure relates to an improved method of producing MPMD based amorphous, semi-aromatic polyamides in order to improve their mechanical properties. It also relates to improved formulations of these polyamides which have further improved mechanical properties by the incorporation of greater amounts of isophthalic acid. The disclosure relates to an improved method of producing MPMD based amorphous, semi-aromatic polyamides in order to improve their mechanical properties. It also relates to improved formulations of these polyamides which have further improved mechanical properties by the incorporation of greater amounts of isophthalic acid.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: Shakespeare Company LLC
    Inventors: Michael BENSTEAD, Charles Richard LANGRICK
  • Patent number: 10711104
    Abstract: The disclosure relates to an improved method of producing MPMD based amorphous, semi-aromatic polyamides in order to improve their mechanical properties. It also relates to improved formulations of these polyamides which have further improved mechanical properties by the incorporation of greater amounts of isophthalic acid. The disclosure relates to an improved method of producing MPMD based amorphous, semi-aromatic polyamides in order to improve their mechanical properties. It also relates to improved formulations of these polyamides which have further improved mechanical properties by the incorporation of greater amounts of isophthalic acid.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 14, 2020
    Assignee: Shakespeare Company, LLC
    Inventors: Michael Benstead, Charles Richard Langrick
  • Publication number: 20200131312
    Abstract: Polyamide resins including the reaction product of an intimate mixture of at least two monomers selected from HMDA and a diamine; and an organic diacid, wherein sebacic acid is present in the organic diacid in an amount of less than or equal to about 50 mol. %, and associated articles and methods are provided herein.
    Type: Application
    Filed: October 31, 2019
    Publication date: April 30, 2020
    Applicant: Shakespeare Company, LLC
    Inventors: Yuhong Wu, Keith D. Parks, Alfred O. Jessee, Saumitra Bhargava
  • Patent number: 10575464
    Abstract: A fixed-line trimmer head for a rotary trimmer device includes the upper portion having a periphery, wherein the upper portion has a plurality of openings spaced from the periphery; and a plurality of mechanisms. Each mechanism can hold a strip of line and includes a post portion disposed through one of the openings in the upper portion, and a flange disposed at one end of the post portion and sandwiched between the upper portion and lower portion of the trimmer head to prevent vertical movement of the mechanism. The post portion includes two line channels, each line channel defining a passageway to receive the same strip of line, wherein at least one of the line channels is curved such that any portion of the strip of line being received through the passageway of that line channel is bent at that portion of the strip of line away from the second line channel while passing through that at least one line channel that is curved.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Shakespeare Company, LLC
    Inventors: David B. Skinner, Wen Liu
  • Patent number: 10398078
    Abstract: A trimmer head having at least two pivoting line holders for holding multiple folded strips of trimming line is presented wherein said pivoting line holders are retained within said housing between said housing and said cover and extend upward through apertures in said cover, said line holders being capable of movement around a vertical axis of rotation, at least three embodiments are disclosed which provide a rounded landing for supporting the inner radius of a folded strip of trimming line, the rounded geometry of the landing prevents line stress and breakage, the various embodiments include a pivot post having two parallel straight through holes with a rounded vertical wall between the through holes, a single open passageway having a center metal post, and a single open passageway having a series of at least two metal pins through the center of the passageway.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: September 3, 2019
    Assignee: Shakespeare Company, LLC
    Inventors: David B. Skinner, Brian Searfoss, Wen Liu, Lin Wang, Jack Yang
  • Patent number: 10400358
    Abstract: Nylon based filaments, yarns, and fabrics having improved properties are provided. A filament contains a composite material formed from a (i) a main structural component containing a mixture of one or more base nylons and one or more secondary nylons, and optionally (ii) an additive component mixed with the main structural component. The one or more base nylons may include one or more aliphatic nylons and the one or more secondary nylons may include one or more semiaromatic nylons.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 3, 2019
    Assignee: Shakespeare Company, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10278327
    Abstract: A trimmer head for a rotary cutting device that utilizes a plurality of trimmer line and cutting blades either separately or simultaneously, the blades pivotally connected to the trimmer head in a first plane which is generally parallel to and underneath a second plane in which the trimmer line is pivotally connected to the trimmer head, each of the blades and strips of trimmer line capable of pivoting within a lateral arc of at least 180 degrees within its respective plane without striking the trimmer head or any other blades or trimmer line.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 7, 2019
    Assignee: Shakespeare Company, LLC
    Inventors: David B Skinner, James A Bennett
  • Patent number: 10280533
    Abstract: A filament comprising a polymer blend and specific articles comprising the filament are disclosed. The polymer blend includes an aliphatic nylon and a semiaromatic nylon. The aliphatic nylon is the major component of the blend and semiaromatic nylon is the minor component of the blend. The aliphatic nylon can be Nylon 6, Nylon 66, Nylon 610, Nylon 612, Nylon 12, and mixtures thereof. The semiaromatic nylon can be 6I/6T, 6T/6I, and mixtures thereof. The nylon blend filament provides enhanced mechanical properties such as modulus, ultimate strength, and yield strength with improved processability and reduced diameter variability at a reduced cost.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: May 7, 2019
    Assignee: Shakespeare Company, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10260170
    Abstract: Nylon based filaments, yarns, and fabrics having improved properties are provided. A filament contains a composite material formed from a (i) a main structural component containing a mixture of one or more base nylons and one or more secondary nylons, and optionally (ii) an additive component mixed with the main structural component. The one or more base nylons may include one or more aliphatic nylons and the one or more secondary nylons may include one or more semiaromatic nylons.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 16, 2019
    Assignee: Shakespeare Company, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10178827
    Abstract: A fixed-line rotary trimmer head is provided having pivoting posts (line holding mechanisms) which allow folded strips of trimmer line to pivot out of the way when impacting stones, metal posts and the like to reduce wear and tear on the line and reduce line breakage, the trimmer line is loaded from the underside of the trimmer head and follows an approximate 90 degree curvilinear channel so that the distal ends of the line extend out the side of the trimmer head for use, the trimmer head also comprises means for pushing the trimmer line partially out of the channel for ease of use and for removal of unused trimmer line.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: January 15, 2019
    Assignee: Shakespeare Company, LLC
    Inventor: David B. Skinner
  • Patent number: 10136577
    Abstract: Fixed-line trimmer heads for rotary trimmer devices and associated methods are provided. A fixed-line trimmer head for a rotary trimmer device includes a housing operatively attachable to the rotary trimmer device. The housing is rotatable when in use around a central axis of rotation and has a top surface extending outwardly from the central axis and facing upward when in use, a bottom surface extending outwardly from the central axis and facing the ground when in use, and a periphery connecting the top surface to the bottom surface. At least one line channel is defined within the housing of the trimmer head having an entrance recessed within the periphery and an exit disposed on one of the top and bottom surfaces, wherein the entrance and exit are each located an equal distance from the axis of rotation.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 27, 2018
    Assignee: Shakespeare Company, LLC
    Inventor: David B. Skinner
  • Patent number: 10053799
    Abstract: Nylon based filaments, yarns, and fabrics having improved properties are provided. A filament contains a composite material formed from a (i) a main structural component containing a mixture of one or more base nylons and one or more secondary nylons, and optionally (ii) an additive component mixed with the main structural component. The one or more base nylons may include one or more aliphatic nylons and the one or more secondary nylons may include one or more semiaromatic nylons.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 21, 2018
    Assignee: SHAKESPEARE COMPANY, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10023696
    Abstract: Medium and high molecular weight long chain aliphatic nylons and methods of making the same. A method of making medium and high molecular weight nylons is described, which not only produces consistent products, but products with enhanced properties such as impact resistance and chemical resistance.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 17, 2018
    Assignee: Shakespeare Company, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10023978
    Abstract: A filament comprising a polymer blend and specific articles comprising the filament are disclosed. The polymer blend includes an aliphatic nylon and a semiaromatic nylon. The aliphatic nylon is the major component of the blend and semiaromatic nylon is the minor component of the blend. The aliphatic nylon can be Nylon 6, Nylon 66, Nylon 610, Nylon 612, Nylon 12, and mixtures thereof. The semiaromatic nylon can be 6I/6T, 6T/6I, and mixtures thereof. The nylon blend filament provides enhanced mechanical properties such as modulus, ultimate strength, and yield strength with improved processability and reduced diameter variability at a reduced cost.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 17, 2018
    Assignee: SHAKESPEARE COMPANY, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 9986682
    Abstract: A fixed-line trimmer head for a rotary trimmer device includes the upper portion having a periphery, wherein the upper portion has a plurality of openings spaced from the periphery; and a plurality of mechanisms. Each mechanism can hold a strip of line and includes a post portion disposed through one of the openings in the upper portion, and a flange disposed at one end of the post portion and sandwiched between the upper portion and lower portion of the trimmer head to prevent vertical movement of the mechanism. The post portion includes two line channels, each line channel defining a passageway to receive the same strip of line, wherein at least one of the line channels is curved such that any portion of the strip of line being received through the passageway of that line channel is bent at that portion of the strip of line away from the second line channel while passing through that at least one line channel that is curved.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 5, 2018
    Assignee: Shakespeare Company, LLC
    Inventors: David B. Skinner, Wen Liu
  • Patent number: 9861034
    Abstract: A trimmer head for a rotary trimmer, includes an upper housing and a lower housing secured to the upper housing, wherein either the upper housing or the lower housing has a passageway. The trimmer head also includes a cutter assembly maintained in the passageway, wherein the cutter assembly has a knife, and wherein trimmer line inserted into the passageway is cut by the knife. A related method of cutting a trimmer line using the cutter assembly incorporated into a trimmer head is also disclosed.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 9, 2018
    Assignee: Shakespeare Company, LLC
    Inventor: David B. Skinner
  • Patent number: 9861033
    Abstract: A bump-activated trimmer head for a rotary trimmer of the type that utilizes wound trimmer line to cut vegetation, the trimmer having a rotary shaft defining a rotation axis, a housing attached to the rotary shaft, at least a pair of opposed eyelets through the housing for receiving the trimmer line, a spool encased within the housing and having a passageway for the trimmer line, the opposed ends of the passageway being alignable with the opposed eyelets of the housing. The trimmer head further includes an indexing knob external to the housing and operatively connected to the spool for turning the spool so as to wind the trimmer line onto the spool, and a separate bump knob rotating about the same rotation axis as the shaft, wherein the bump knob is operationally connected to the spool, but is rotationally independent of the shaft, the housing and the spool.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 9, 2018
    Assignee: Shakespeare Company, LLC
    Inventors: David B. Skinner, Mark R. Wilkinson
  • Patent number: 9834868
    Abstract: A filament comprising a polymer blend and specific articles comprising the filament are disclosed. The polymer blend includes an aliphatic nylon and a semiaromatic nylon. The aliphatic nylon is the major component of the blend and semiaromatic nylon is the minor component of the blend. The aliphatic nylon can be Nylon 6, Nylon 66, Nylon 610, Nylon 612, Nylon 12, and mixtures thereof. The semiaromatic nylon can be 6I/6T, 6T/6I, and mixtures thereof. The nylon blend filament provides enhanced mechanical properties such as modulus, ultimate strength, and yield strength with improved processability and reduced diameter variability at a reduced cost.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: December 5, 2017
    Assignee: Shakespeare Company, LLC
    Inventor: Saumitra Bhargava
  • Patent number: 9801335
    Abstract: Trimmer heads for use with a rotary powered trimming device for cutting vegetation and methods of assembling such trimmer heads are provided. A trimmer head has one or more pivoting line holders and includes a single unitary molded housing having at least one recessed cavity located on the upper surface which is shaped and sized to receive a pivoting line holder. The recessed cavity includes reinforcement members for securely retaining the pivoting line holder therein via insertion of a metal bearing ring which allows for free rotation of pivoting line holder about its central axis within recessed cavity.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 31, 2017
    Assignee: Shakespeare Company, LLC
    Inventor: David B. Skinner