Patents by Inventor Padmakumar Muthuswamy

Padmakumar Muthuswamy 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: 20250144724
    Abstract: A grooving tool holder includes a lower portion, an upper portion, and a cutting insert receptacle. The upper portion is pivotable relative to the lower portion. The upper portion includes a rake face. The cutting insert receptacle is disposed between the lower portion and the upper portion. The cutting insert receptacle includes an upper clamping jaw disposed in the upper portion and a lower clamping jaw disposed in the lower portion. The cutting insert receptacle extends widthwise between opposed sidewalls of the lower portion and opposed sidewalls of the upper portion. The rake face is disposed adjacent to and over the cutting insert receptacle. The rake face extends between the opposed sidewalls of the upper portion. The rake face is disposed non-perpendicularly to the opposed sidewalls of the upper portion.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 8, 2025
    Inventors: Ravi Halasur, Igor Kaufmann, Padmakumar Muthuswamy, Iranna Shidrameshetra
  • Publication number: 20240416429
    Abstract: A hydraulic tool holder comprises a body and a piston assembly. The body defines a fluid reservoir adapted to hold a fluid. The piston assembly comprises a piston pin movably arranged within the body and including a first end in communication with the fluid reservoir, and a visual indicator. An elastic element of the piston assembly biases the piston pin toward the fluid reservoir with a predetermined elastic force. The predetermined elastic force is selected such that the visual indicator is visible from an exterior of the body when a pressure of the fluid in the fluid reservoir reaches a predetermined minimum threshold level.
    Type: Application
    Filed: June 19, 2024
    Publication date: December 19, 2024
    Applicant: Kennametal India Ltd.
    Inventors: Santhosha Boregowda, Padmakumar Muthuswamy
  • Patent number: 11850670
    Abstract: Cutting tool systems including a cutting tool holder and cutting inserts are disclosed. The cutting inserts have eight cutting edges and eight wiper edges. The first and second faces each include at least two cutting edges or two wiper edges on alternating sides of the cutting insert. The cutting edges and wiper edges are structured and arranged to allow the cutting insert to be interchangeably used in both right handed and left handed cutting tool holders.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: December 26, 2023
    Assignee: KENNAMETAL INDIA LTD.
    Inventors: Padmakumar Muthuswamy, Bharath Arumugam
  • Publication number: 20230271258
    Abstract: A tool is provided having a tool holder and a brazed top clamp positioned in a portion of the tool holder. The brazed top clamp is made of a material that has a hardness that is greater than the material that makes up the tool holder. In certain embodiments, the tool holder has a slot that is in the shape of a “T-slot” and the top clamp is in the shape of a “T shaped rail” that is positioned within the “T-slot” of the tool holder.
    Type: Application
    Filed: February 23, 2023
    Publication date: August 31, 2023
    Inventors: Santhosha Borapura, Padmakumar Muthuswamy
  • Publication number: 20230226626
    Abstract: A milling tool includes a rotatable tool body, a cutting insert, and first and second coolant outlets. The rotatable tool body is configured to rotate around an axis. The rotatable tool body includes a circumferential outer surface with a pocket defined therein. The pocket includes a seating surface. The cutting insert is disposed within the pocket. The cutting insert includes a seating face and a rake face opposed to the seating face. The seating face is disposed against the seating surface. The first coolant outlet is disposed in or attached to the rotatable tool body disposed on an opposite side of the rake face as the seating face. The second coolant outlet is disposed in or attached to the rotatable tool body disposed on an opposite side of the seating face as the rake face. The second coolant outlet is disposed outside of and adjacent to the seating face.
    Type: Application
    Filed: November 22, 2022
    Publication date: July 20, 2023
    Inventors: Bharath Arumugam, Padmakumar Muthuswamy
  • Publication number: 20230226624
    Abstract: A milling tool cutter includes a tool body, a plurality of cutting inserts, a plurality of clamping studs, a clamping ring, and a detachable fastening member. The tool body has a plurality of pockets disposed circumferentially around the tool body. Each of the cutting inserts is disposed in one of the respective pockets. Each of the clamping studs is attached to one of the respective cutting inserts. The clamping ring is disposed within the tool body. The clamping ring includes a face surface, a seating surface, and a circumferential outer surface extending between the face surface and the seating surface. The seating surface sits against the plurality of clamping studs. The detachable fastening member is disposed in an attached state fixedly attaching the clamping ring to the tool body causing the clamping studs and their respective cutting inserts to be fixedly attached to the tool body.
    Type: Application
    Filed: January 17, 2023
    Publication date: July 20, 2023
    Inventors: Bharath Arumugam, Padmakumar Muthuswamy, Ruy Frota de Souza Filho
  • Patent number: 11484953
    Abstract: A toolholder (10) has a pocket (20) that accommodates two styles of cutting inserts (25, 25?) having different clearance angles (CA). A support pad (78, 80) protrudes from two side walls (82, 84) of the pocket (20). Each support pad (78, 80) includes a first, planar wall (78a, 80a) and a second, planar wall (78b, 80b) formed at a composite angle defined by a first angle (92) and a second angle (94). The first, planar wall (78a, 80a) enables the pocket (20) to accommodate the second style of cutting insert (25?), and the second, planar wall (78b, 80b) enables the pocket (20) to accommodate the first style of cutting insert (25). In one aspect, the support pads (78, 80) extend the entire length, L, of the support pad (78, 80). In another aspect, an indentation (112, 114) divides one or both of the support pads (178, 180) into two portions, each portion having two planar walls (178a, 178b, 178c, 178d, 180a, 180b, 180c, 180d).
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 1, 2022
    Assignee: KENNAMETAL INDIA LIMITED
    Inventors: Bharath Arumugam, Padmakumar Muthuswamy
  • Patent number: 11325196
    Abstract: A double-sided, polygonal cutting insert includes a first surface and a second surface opposite the first surface. A plurality of side surfaces extend between the first surface and the second surface. A plurality of primary concave cutting edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces, and a plurality of convex wiper edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces. Each wiper edge has a step extending radially outward from a respective side surface. The cutting insert is mounted in a cutting tool such that the primary cutting edge and a wiper edge contact a workpiece to produce a high-quality surface finish on the workpiece.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: May 10, 2022
    Assignee: KENNAMETAL INDIA LIMITED
    Inventors: Andreas Wuerfels, Padmakumar Muthuswamy, Bharath Arumugam
  • Publication number: 20210331258
    Abstract: Cutting tool systems including a cutting tool holder and cutting inserts are disclosed. The cutting inserts have eight cutting edges and eight wiper edges. The first and second faces each include at least two cutting edges or two wiper edges on alternating sides of the cutting insert. The cutting edges and wiper edges are structured and arranged to allow the cutting insert to be interchangeably used in both right handed and left handed cutting tool holders.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 28, 2021
    Inventors: Padmakumar Muthuswamy, Bharath Arumugam
  • Publication number: 20210001417
    Abstract: A double-sided, polygonal cutting insert includes a first surface and a second surface opposite the first surface. A plurality of side surfaces extend between the first surface and the second surface. A plurality of primary concave cutting edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces, and a plurality of convex wiper edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces. Each wiper edge has a step extending radially outward from a respective side surface. The cutting insert is mounted in a cutting tool such that the primary cutting edge and a wiper edge contact a workpiece to produce a high-quality surface finish on the workpiece.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Applicant: Kennametal India Limited
    Inventors: Andreas Wuerfels, Padmakumar Muthuswamy, Bharath Arumugam
  • Publication number: 20200398352
    Abstract: A toolholder (10) has a pocket (20) that accommodates two styles of cutting inserts (25, 25?) having different clearance angles (CA). A support pad (78, 80) protrudes from two side walls (82, 84) of the pocket (20). Each support pad (78, 80) includes a first, planar wall (78a, 80a) and a second, planar wall (78b, 80b) formed at a different angle (94) than an angle (92) of the first, planar wall (78a, 80a). The first, planar wall (78a, 80a) enables the pocket (20) to accommodate the second cutting insert (25?), and the second, planar wall (78b, 80b) enables the pocket (20) to accommodate the first cutting insert (25). In one aspect, the support pads (78, 80) extend the entire length, L, of the support pad (78, 80). In another aspect, an indentation (112, 114) divides one or both of the support pads (178, 180) into two portions, each portion having two planar walls (178a, 178b, 178c, 178d, 180a, 180b, 180c, 180d).
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Inventors: Bharath Arumugam, Padmakumar Muthuswamy
  • Patent number: 10239124
    Abstract: A cutting insert including a body having three vertices, an upper face, a lower face, and flank faces joining the upper and lower faces. At least one cutting edge is formed at an intersection between the upper face and the flank faces. A generally triangular-shaped island surrounds a central axis of the cutting insert and is higher in elevation than at least one portion of the upper face.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 26, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Padmakumar Muthuswamy, Arunachalam Muthuchidambaram, Arvind Mani
  • Patent number: 10005131
    Abstract: A cutting insert includes a body having three vertices, an upper face, a lower face, and six planar flank faces perpendicular to and joining the upper and lower faces. A cutting edge is formed at an intersection between the upper and lower faces and each of the planar flank faces. A triangular-shaped island surrounds a central axis, A, of the cutting insert and is higher in elevation than the upper and lower faces. A tool holder includes a tool holder body having a generally triangular-shaped insert-receiving pocket with a triangular-shaped recess that is substantially identical in shape to the triangular-shaped island of the cutting insert that interacts with the island to properly locate and prevent rotation of the cutting insert when mounted in the tool holder.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 26, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Padmakumar Muthuswamy, Arunachalam Muthuchidambaram, Arvind Mani
  • Publication number: 20180154452
    Abstract: A cutting insert including a body having three vertices, an upper face, a lower face, and flank faces joining the upper and lower faces. At least one cutting edge is formed at an intersection between the upper face and the flank faces. A generally triangular-shaped island surrounds a central axis of the cutting insert and is higher in elevation than at least one portion of the upper face.
    Type: Application
    Filed: January 31, 2018
    Publication date: June 7, 2018
    Inventors: Padmakumar Muthuswamy, Arunachalam Muthuchidambaram, Arvind Mani
  • Publication number: 20150283619
    Abstract: A tool holder includes a body having a forward end with a clamp seating surface, and a clamp mounted on the clamp seating surface with an integrated insert-receiving pocket for receiving a cutting insert. The insert-receiving pocket is formed by a pair of side walls formed at an angle with respect to each other, depending on the shape of the cutting insert. A slot is formed in side walls to allow the clamp to act as a cantilevered member when a clamp screw is received in an insert screw, thereby causing the clamp to press against the cutting insert to securely hold the cutting insert in the insert-receiving pocket of the clamp.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 8, 2015
    Inventors: Arunachalam Muthuchidambaram, Padmakumar Muthuswamy
  • Publication number: 20150273590
    Abstract: A cutting insert includes a body having three vertices, an upper face, a lower face, and six planar flank faces perpendicular to and joining the upper and lower faces. A cutting edge is formed at an intersection between the upper and lower faces and each of the planar flank faces. A triangular-shaped island surrounds a central axis, A, of the cutting insert and is higher in elevation than the upper and lower faces. A tool holder includes a tool holder body having an generally triangular-shaped insert-receiving pocket with a triangular-shaped recess that is substantially identical in shape to the triangular-shaped island of the cutting insert that interacts with the island to properly locate and prevent rotation of the cutting insert when mounted in the tool holder.
    Type: Application
    Filed: March 16, 2015
    Publication date: October 1, 2015
    Inventors: Padmakumar Muthuswamy, Arunachalam Muthuchidambaram, Arvind Mani
  • Patent number: D832319
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 30, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Padmakumar Muthuswamy, Andreas Wuerfels, Sivapapachari Chennuri, Shivanna Muniyappa, Bharath Kumar Arumugam