Patents by Inventor Michael B. Roska

Michael B. Roska 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: 11970843
    Abstract: A wear member having an opening with retention features for engaging and retaining a lock for securing the wear member to earth-working equipment. The lock can engage the opening in the wear member at an inner hold position to secure the wear member to the earth-working equipment or an outer release position. In a folded orientation the lock disengages from the opening of the wear member. The wear member and lock cooperate with a base to form a wear assembly for earth working equipment.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 30, 2024
    Assignee: ESCO GROUP LLC
    Inventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
  • Patent number: 11951484
    Abstract: A multi-piece hammer for use in a reducing machine. The multi-piece hammer includes a base to be mounted to the reducing machine, a replaceable tip to be mounted to the base and to impact the material to be reduced, and a retainer to secure the replaceable tip to the base. The replaceable tip has a cavity with a single rail or groove that corresponds to a single groove or rail on the base.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 9, 2024
    Assignee: ESCO GROUP LLC
    Inventors: Michael B. Roska, Ty D. Porter, Severn D. Durand
  • Patent number: 11952742
    Abstract: A cast lip for an excavating bucket composed of a ferrous alloy having at least seven percent chromium by weight, 3%-6% nickel by weight, and ?0.12% carbon by weight, and a primarily martensitic structure.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: April 9, 2024
    Assignee: ESCO GROUP LLC
    Inventors: Robin K. Churchill, Michael B. Roska, Ulf Daniel Widlund
  • Publication number: 20220381009
    Abstract: A lock that includes a pin and a collar. At least one of the pin and collar include a circular seal and a recess to store the seal. When the pin and collar are engaged in a locking manner, the surfaces of the pin and collar compress the seal such that a barrier is formed to limit ingress of fine earthen material. The lock assembly may be a component of a wear assembly. The lock assembly may be positioned into aligned holes to capture components of the wear assembly together, e.g. a point to an adapter or an adapter to a base. The recess of the pin may be located adjacent the head of the pin. The recess of collar may be located near the bottom of the collar. The application of both an upper and lower seal can further limit the ingress of fine earthen material.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Applicant: ESCO Group LLLC
    Inventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark T. Beatley, Cornelius J. Brockman
  • Publication number: 20220290413
    Abstract: A wear assembly for securing a wear member to excavating equipment that includes a base having a nose and a wear member having a socket. The nose and socket are each provided with one or more complementary stabilizing surfaces in front and rear portions thereof.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 15, 2022
    Applicant: ESCO Group LLC
    Inventors: Michael B. Roska, Scott H. Zenier, Cameron R. Leedham, Kevin S. Stangeland
  • Patent number: 11441296
    Abstract: A lock that includes a pin and a collar. At least one of the pin and collar include a circular seal and a recess to store the seal. When the pin and collar are engaged in a locking manner, the surfaces of the pin and collar compress the seal such that a barrier is formed to limit ingress of fine earthen material. The lock assembly may be a component of a wear assembly. The lock assembly may be positioned into aligned holes to capture components of the wear assembly together, e.g. a point to an adapter or an adapter to a base. The recess of the pin may be located adjacent the head of the pin. The recess of collar may be located near the bottom of the collar. The application of both an upper and lower seal can further limit the ingress of fine earthen material.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 13, 2022
    Assignee: ESCO GROUP LLC
    Inventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark T. Beatley, Cornelius J. Brockman
  • Patent number: 11359355
    Abstract: A wear assembly for use on various kinds of earth working equipment that includes a base with a supporting portion, a wear member with a cavity into which the supporting portion is received, and a lock to releasably secure the wear member to the base. The supporting portion is formed with top and bottom recesses that receive complementary projections of the wear member. These recesses and projections include aligned holes so as to receive and position the lock centrally within the wear assembly and remote from the wear surface. The hole in the wear member is defined by a wall that includes a retaining structure provided with an upper bearing surface and a lower bearing surface for contacting and retaining the lock against upward and downward movement in the hole. The lock includes a mounting component that defines a threaded opening for receiving a threaded pin that is used to releasably hold the wear member to the base.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: June 14, 2022
    Assignee: ESCO GROUP LLC
    Inventors: Mark A. Cheyne, Noah D. Cowgill, Michael B. Roska, Donald M. Conklin, Scott H. Zenier, Chris J. Hainley
  • Publication number: 20220145595
    Abstract: An articulated lock for securing a wear member to earth-working equipment includes a plurality of bodies interconnected for pivotal movement between an extended orientation with the bodies aligned and a retracted orientation with the bodies folded. The lock in the extended orientation can engage an opening of the wear member at an inner hold position to secure the wear member to the earth-working equipment or an outer release position. In the folded orientation the lock disengages from the opening of the wear member. Each body has a slot and a tab and, in the extended orientation, the tab of each body is received in the slot of the other body to limit separation of the bodies.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Applicant: ESCO GROUP LLC
    Inventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
  • Patent number: 11261585
    Abstract: An articulated lock for securing a wear member to earth-working equipment includes a plurality of bodies interconnected for pivotal movement between an extended orientation with the bodies aligned and a retracted orientation with the bodies folded. The lock in the extended orientation can engage an opening of the wear member at an inner hold position to secure the wear member to the earth-working equipment or an outer release position. In the folded orientation the lock disengages from the opening of the wear member. Each body has a slot and a tab and, in the extended orientation, the tab of each body is received in the slot of the other body to limit separation of the bodies.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 1, 2022
    Assignee: ESCO GROUP LLC
    Inventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
  • Patent number: 11155982
    Abstract: Wear members for wear assemblies include a lock configured to secure the wear member to a base, where the lock has two engagement positions, namely: (a) a first position that secures the lock to the wear member, and (b) a second position that secures the wear member to the base. The locks are further configured to be unlatched and removed from the wear member in two phases, a first retraction of the latching mechanism, followed by a rotation of the lock itself with removal from the wear member.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: October 26, 2021
    Assignee: ESCO GROUP LLC
    Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
  • Publication number: 20210238829
    Abstract: A wear member comprising: an upper leg having a ground engaging surface on an outer side thereof and a mounting surface on an inner side thereof, and a lower leg spaced apart from the upper leg and also having a ground engaging surface on an outer side thereof and a mounting surface on an inner side thereof, the mounting surfaces defining a mounting cavity therebetween and the legs meeting at a front portion, the upper leg defining (i) a lock aperture therein, (ii) a rear edge, and (iii) a lifting feature located adjacent to and between the lock aperture and the rear edge; the lifting feature defining (a) a front surface lower than the upper leg ground engaging surface and being inclined relative thereto, (b) a lower support surface opposite the front surface, and (c) a rear engaging surface extending between the front surface and the lower support surface and being recessed relative to the rear edge; wherein the front surface, lower support surface, and rear engaging surface provide a narrowed portion around
    Type: Application
    Filed: February 3, 2021
    Publication date: August 5, 2021
    Applicant: ESCO Group LLC
    Inventors: Timothy E. Griffin, Michael B. Roska, Kelly A. Fox, Sean Singh
  • Patent number: 11072913
    Abstract: A wear assembly for use on various kinds of earth working equipment that includes a base with a supporting portion, a wear member with a cavity into which the supporting portion is received, and a lock to releasably secure the wear member to the base. The supporting portion is formed with top and bottom recesses that receive complementary projections of the wear member. These recesses and projections include aligned holes so as to receive and position the lock centrally within the wear assembly and remote from the wear surface. The hole in the wear member is defined by a wall that includes a retaining structure provided with an upper bearing surface and a lower bearing surface for contacting and retaining the lock against upward and downward movement in the hole. The lock includes a mounting component that defines a threaded opening for receiving a threaded pin that is used to releasably hold the wear member to the base.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 27, 2021
    Assignee: ESCO GROUP LLC
    Inventors: Mark A. Cheyne, Noah D. Cowgill, Michael B. Roska, Donald M. Conklin, Scott H. Zenier, Chris J. Hainley
  • Publication number: 20200308804
    Abstract: A cast lip for an excavating bucket composed of a ferrous alloy having at least seven percent chromium by weight, 3%-6% nickel by weight, and ?0.12% carbon by weight, and a primarily martensitic structure.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Applicant: ESCO Group LLC
    Inventors: Robin K. Churchill, Michael B. Roska, Ulf Daniel Widlund
  • Publication number: 20200240120
    Abstract: Wear members for wear assemblies include a lock configured to secure the wear member to a base, where the lock has two engagement positions, namely: (a) a first position that secures the lock to the wear member, and (b) a second position that secures the wear member to the base. The locks are further configured to be unlatched and removed from the wear member in two phases, a first retraction of the latching mechanism, followed by a rotation of the lock itself with removal from the wear member.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
  • Publication number: 20200224393
    Abstract: An articulated lock for securing a wear member to earth-working equipment includes a plurality of bodies interconnected for pivotal movement between an extended orientation with the bodies aligned and a retracted orientation with the bodies folded. The lock in the extended orientation can engage an opening of the wear member at an inner hold position to secure the wear member to the earth-working equipment or an outer release position. In the folded orientation the lock disengages from the opening of the wear member. Each body has a slot and a tab and, in the extended orientation, the tab of each body is received in the slot of the other body to limit separation of the bodies.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Applicant: ESCO GROUP LLC
    Inventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
  • Patent number: 10655307
    Abstract: Wear members for wear assemblies include a lock configured to secure the wear member to a base, where the lock has two engagement positions, namely: (a) a first position that secures the lock to the wear member, and (b) a second position that secures the wear member to the base. The locks are further configured to be unlatched and removed from the wear member in two phases, a first retraction of the latching mechanism, followed by a rotation of the lock itself with removal from the wear member.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 19, 2020
    Assignee: ECSO Group LLC
    Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
  • Publication number: 20200131743
    Abstract: A lock that includes a pin and a collar. At least one of the pin and collar include a circular seal and a recess to store the seal. When the pin and collar are engaged in a locking manner, the surfaces of the pin and collar compress the seal such that a barrier is formed to limit ingress of fine earthen material. The lock assembly may be a component of a wear assembly. The lock assembly may be positioned into aligned holes to capture components of the wear assembly together, e.g. a point to an adapter or an adapter to a base. The recess of the pin may be located adjacent the head of the pin. The recess of collar may be located near the bottom of the collar. The application of both an upper and lower seal can further limit the ingress of fine earthen material.
    Type: Application
    Filed: October 31, 2019
    Publication date: April 30, 2020
    Applicant: ESCO Group LLC
    Inventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark Beatley, Cornelius J. Brockman
  • Publication number: 20200122152
    Abstract: A multi-piece hammer for use in a reducing machine. The multi-piece hammer includes a base to be mounted to the reducing machine, a replaceable tip to be mounted to the base and to impact the material to be reduced, and a retainer to secure the replaceable tip to the base. The replaceable tip has a cavity with a single rail or groove that corresponds to a single groove or rail on the base.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: ESCO GROUP LLC
    Inventors: Michael B. Roska, Ty D. Porter, Severn D. Durand
  • Patent number: 10612214
    Abstract: An articulated lock for securing a wear member to earth-working equipment includes a plurality of bodies interconnected for pivotal movement between an extended orientation with the bodies aligned and a retracted orientation with the bodies folded. The lock in the extended orientation can engage an opening of the wear member at an inner hold position to secure the wear member to the earth-working equipment or an outer release position. In the folded orientation the lock disengages from the opening of the wear member. Each body has a slot and a tab and, in the extended orientation, the tab of each body is received in the slot of the other body to limit separation of the bodies.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 7, 2020
    Assignee: ESCO GROUP LLC
    Inventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
  • Patent number: 10525477
    Abstract: A multi-piece hammer for use in a reducing machine. The multi-piece hammer includes a base to be mounted to the reducing machine, a replaceable tip to be mounted to the base and to impact the material to be reduced, and a retainer to secure the replaceable tip to the base. The replaceable tip has a cavity with a single rail or groove that corresponds to a single groove or rail on the base.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 7, 2020
    Assignee: ESCO GROUP LLC
    Inventors: Michael B. Roska, Ty D. Porter, Severn D. Durand