Patents by Inventor Pradeep Chapagain

Pradeep Chapagain 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: 11725606
    Abstract: A funnel or drain back seal and systems, assemblies, components, kits, and methods thereof can comprise a body defining an opening that extends from a top of the body to a bottom of the body; a head portion that extends outward from the top of the body; and a flap or lip that extends outward from the bottom of the body. The opening can be adapted to pass draining oil from the top of the body to the bottom of the body for supply into an engine block.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 15, 2023
    Assignee: Caterpillar Inc.
    Inventors: Suresh B. Chennagowni, Mandar A. Joshi, Benjamin D. Stoltzfus, Pradeep Chapagain, Gregory O. Potts
  • Patent number: 11518288
    Abstract: A rocker support insert for a support rocker comprises a support plate configured to be removably coupled to a top portion of a rocker body; and a support padding fixedly coupled to a top surface of the support plate such that a portion of the top surface of the support plate remains exposed. A top surface of the support padding can define a concave upward-facing contact surface, and the support padding can be thicker than the support plate.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 6, 2022
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Ryan P Morge
  • Publication number: 20220364525
    Abstract: A funnel or drain back seal and systems, assemblies, components, kits, and methods thereof can comprise a body defining an opening that extends from a top of the body to a bottom of the body; a head portion that extends outward from the top of the body; and a flap or lip that extends outward from the bottom of the body. The opening can be adapted to pass draining oil from the top of the body to the bottom of the body for supply into an engine block.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Applicant: Caterpillar Inc.
    Inventors: Suresh B. CHENNAGOWNI, Mandar A. JOSHI, Benjamin D. STOLTZFUS, Pradeep CHAPAGAIN, Gregory O. POTTS
  • Patent number: 11498470
    Abstract: A support rocker configured to be pivotally coupled to a rocker attachment interface of a space frame comprises a rocker body having a pivot bore configured to receive therethrough a pivot pin to pivotally couple the rocker body to the rocker attachment interface; and a rocker support insert provided on a top portion of the rocker body. The rocker support insert can be removably coupled to the top portion of the rocker body, and the rocker support insert can define an upward-facing contact surface.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 15, 2022
    Assignee: Caterpillar Inc.
    Inventors: Ryan P Morge, Pradeep Chapagain, David W Holthaus
  • Patent number: 11215285
    Abstract: A seal includes an at least partially cylindrical annular body defining a radial direction, an axial direction, and a circumferential direction. The at least partially cylindrical annular body has a radially outer flange, a radially inner ring, and a resilient intermediate portion joining the radially outer flange to the radially inner ring. The radially outer flange defines a seal outer diameter and a flange axial thickness, and a ratio of the seal outer diameter to the flange axial thickness ranges from 14.0 to 15.0.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: January 4, 2022
    Assignee: Caterpillar Inc.
    Inventors: Ryan Patrick Morge, Pradeep Chapagain, Andrew R. Stodgel
  • Publication number: 20210122281
    Abstract: A rocker support insert for a support rocker comprises a support plate configured to be removably coupled to a top portion of a rocker body; and a support padding fixedly coupled to a top surface of the support plate such that a portion of the top surface of the support plate remains exposed. A top surface of the support padding can define a concave upward-facing contact surface, and the support padding can be thicker than the support plate.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 29, 2021
    Applicant: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Ryan P. Morge
  • Publication number: 20210122280
    Abstract: A support rocker configured to be pivotally coupled to a rocker attachment interface of a space frame comprises a rocker body having a pivot bore configured to receive therethrough a pivot pin to pivotally couple the rocker body to the rocker attachment interface; and a rocker support insert provided on a top portion of the rocker body. The rocker support insert can be removably coupled to the top portion of the rocker body, and the rocker support insert can define an upward-facing contact surface.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 29, 2021
    Applicant: Caterpillar Inc.
    Inventors: Ryan P. Morge, Pradeep Chapagain, David W. Holthaus
  • Publication number: 20200300366
    Abstract: A seal includes an at least partially cylindrical annular body defining a radial direction, an axial direction, and a circumferential direction. The at least partially cylindrical annular body has a radially outer flange, a radially inner ring, and a resilient intermediate portion joining the radially outer flange to the radially inner ring. The radially outer flange defines a seal outer diameter and a flange axial thickness, and a ratio of the seal outer diameter to the flange axial thickness ranges from 14.0 to 15.0.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 24, 2020
    Applicant: Caterpillar Inc.
    Inventors: Ryan Patrick Morge, Pradeep Chapagain, Andrew R. Stodgel
  • Patent number: 10612657
    Abstract: A joint assembly includes a clamp member and a spacer plate. The clamp member includes a first jaw surface and a second jaw surface that define a gap therebetween. The spacer plate is connected to the clamp member such that the spacer plate is disposed within the gap between the first jaw surface and the second jaw surface. The spacer plate includes a body and a seal member. The body includes a perimeter. The seal member is connected to the body such that it is disposed adjacent the perimeter of the body. The seal member extends over a segment of the perimeter of the body. The seal member is in sealing engagement with the first jaw surface and the second jaw surface.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 7, 2020
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Sunil I. Mathew, Charles Taylor Hudson
  • Publication number: 20200095752
    Abstract: A shield subassembly includes a support member, a resilient member, and a shield member defining an annular perimeter that surrounds the resilient member.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Applicant: Caterpillar Inc.
    Inventors: Patrick Simon Campomanes, Jonathan Stuart Borden, Brandon H. McCaffrey, Pradeep Chapagain, Daniel Joshua Smith
  • Patent number: 10519632
    Abstract: A support member for use with a support assembly for ground engaging tools comprises a structural member; and a resilient member that includes a base, and a contact surface, and wherein the structural member defines a direction of assembly and the resilient member defines a length and a width that are perpendicular to each other and to the direction of assembly, wherein the length exceeds the width and the base defines a centerline that is parallel to the length, and the contact face defines a centerline that is parallel to the length.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 31, 2019
    Assignee: Caterpillar Inc.
    Inventors: Patrick Simon Campomanes, Amit Panjabrao Wankhade, Pradeep Chapagain, Sunil I. Mathew
  • Patent number: 10513837
    Abstract: A support assembly for ground engaging tools comprises a tool (106) operatively connected to a working edge (116) of a work implement (100); a support member (134) operatively connected to the working edge (116) separately from the tool a predetermined distance away (164) from the tool (106) along the sweep direction (S, S?); wherein the support member (134) and tool (106) are operatively associated with each other and are configured to provide a load path (128) between the tool (106) and the support member (134) along at least a portion of the sweep direction (S, S?).
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 24, 2019
    Assignee: Caterpillar Inc.
    Inventors: Patrick Simon Campomanes, Amit Panjabrao Wankhade, Pradeep Chapagain, Sunil I. Mathew
  • Patent number: 10443729
    Abstract: A spring seal for a joint assembly pivotally joining a lever arm to a machine frame includes an annular body having a W-shaped cross section. The W-shaped cross section includes a first cantilevered arm, a parallel and spaced apart second cantilevered arm, and a spring leg joining the first and second cantilevered arms. The spring seal is disposed between a bearing surface on the lever arm and a lug on the frame. The W-shaped cross section of the spring seal can collapse and relax to accommodate movement between the lever arm and the frame lug. A second spring seal can be disposed between a second bearing surface on the lever arm and a second frame lug opposite the first lug.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: October 15, 2019
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Sunil I. Mathew, Charles Taylor Hudson
  • Patent number: 10288174
    Abstract: A seal member for a joint between a pivot member movable about a rotational axis of a shaft includes a ring, a flange, and a resiliently flexible intermediate portion interposed therebetween. The ring includes annular distal and proximal ring faces disposed in spaced relationship to each other along a longitudinal axis. The flange includes a pair of flange faces disposed in spaced relationship to each other along the longitudinal axis. The flange includes outer and inner flange surfaces extending along the longitudinal axis between the pair of flange faces at, respectively, outer and inner flange perimeters thereof. The intermediate portion has a ring end that circumscribes, and is connected to, an outer circumferential ring surface of the ring and a flange end that is connected to the inner flange surface of the flange such that the ring is relatively movable with respect to the flange.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: May 14, 2019
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Sunil I. Mathew, Charles Taylor Hudson
  • Patent number: 10288173
    Abstract: A seal member for a joint between a pivot member movable about a rotational axis of a shaft includes a ring, a flange, and a resiliently flexible intermediate portion interposed therebetween. The ring includes annular distal and proximal ring faces disposed in spaced relationship to each other along a longitudinal axis. The flange includes a pair of flange faces disposed in spaced relationship to each other along the longitudinal axis. The flange includes outer and inner flange surfaces extending along the longitudinal axis between the pair of flange faces at, respectively, outer and inner flange perimeters thereof. The intermediate portion is connected to the proximal ring face of the ring and to the inner circumferential flange surface of the flange such that the ring is relatively movable with respect to the flange.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: May 14, 2019
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Sunil I. Mathew, Charles Taylor Hudson
  • Patent number: 10228057
    Abstract: A self-adjusting seal for sealing a joint. The joint includes a support member, a mis-alignable component, and a changeable gap between the support member and the mis-alignable component. The seal includes a first part having a generally annular configuration formed of a resiliently crushable material and defining a planar outer seal face to statically seal to the support member and a first seal part opening extending therethrough. A second seal part axially adjoins the first part. The second seal part has a generally annular configuration formed of a rigid material and a second seal part opening extending therethrough in axial alignment with the first seal part opening. The first and second seal part openings define a non-rotation feature to prevent rotation of the seal on the support member, the second seal part defining a planer inner seal face configured to dynamically and sealingly interface with the mis-alignable component.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 12, 2019
    Assignee: Caterpillar Inc.
    Inventors: Charles Taylor Hudson, Sunil I. Mathew, Pradeep Chapagain
  • Patent number: 9822883
    Abstract: A load ring for a seal assembly includes an inner axial surface, an outer axial surface, a first frustoconical surface, a second frustoconical surface, and a rib. The inner and outer axial surfaces are cylindrical and extend along a longitudinal axis. The outer axial surface is in outward radial relationship to the inner axial surface along a radial plane which is perpendicular to the longitudinal axis. The first and second frustoconical surfaces are annular and extend radially between the inner axial surface and the outer axial surface. The second frustoconical surface is in spaced relationship with respect to the first frustoconical surface along the longitudinal axis. The rib projects radially inwardly from the inner axial surface.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: November 21, 2017
    Assignee: Caterpillar Inc.
    Inventors: Darren B. Antoine, Sunil I. Mathew, Pradeep Chapagain, Brian S. Skauge
  • Publication number: 20170328038
    Abstract: A support member for use with a support assembly for ground engaging tools comprises a structural member; and a resilient member that includes a base, and a contact surface, and wherein the structural member defines a direction of assembly and the resilient member defines a length and a width that are perpendicular to each other and to the direction of assembly, wherein the length exceeds the width and the base defines a centerline that is parallel to the length, and the contact face defines a centerline that is parallel to the length.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Applicant: Caterpillar Inc.
    Inventors: Patrick Simon Campomanes, Amit Panjabrao Wankhade, Pradeep Chapagain, Sunil I. Mathew
  • Publication number: 20170328033
    Abstract: A support assembly for ground engaging tools comprises a tool (106) operatively connected to a working edge (116) of a work implement (100); a support member (134) operatively connected to the working edge (116) separately from the tool a predetermined distance away (164) from the tool (106) along the sweep direction (S, S?); wherein the support member (134) and tool (106) are operatively associated with each other and are configured to provide a load path (128) between the tool (106) and the support member (134) along at least a portion of the sweep direction (S, S?).
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Applicant: Caterpillar Inc.
    Inventors: Patrick Simon Campomanes, Amit Panjabrao Wankhade, Pradeep Chapagain, Sunil I. Mathew
  • Patent number: D937073
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 30, 2021
    Assignee: Caterpillar Inc.
    Inventors: Pradeep Chapagain, Ryan P. Morge