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).
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Patent number: 11970843Abstract: 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: GrantFiled: January 24, 2022Date of Patent: April 30, 2024Assignee: ESCO GROUP LLCInventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
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Patent number: 11951484Abstract: 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: GrantFiled: December 20, 2019Date of Patent: April 9, 2024Assignee: ESCO GROUP LLCInventors: Michael B. Roska, Ty D. Porter, Severn D. Durand
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Patent number: 11952742Abstract: 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: GrantFiled: March 27, 2020Date of Patent: April 9, 2024Assignee: ESCO GROUP LLCInventors: Robin K. Churchill, Michael B. Roska, Ulf Daniel Widlund
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Publication number: 20220381009Abstract: 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: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Applicant: ESCO Group LLLCInventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark T. Beatley, Cornelius J. Brockman
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Publication number: 20220290413Abstract: 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: ApplicationFiled: March 3, 2022Publication date: September 15, 2022Applicant: ESCO Group LLCInventors: Michael B. Roska, Scott H. Zenier, Cameron R. Leedham, Kevin S. Stangeland
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Patent number: 11441296Abstract: 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: GrantFiled: October 31, 2019Date of Patent: September 13, 2022Assignee: ESCO GROUP LLCInventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark T. Beatley, Cornelius J. Brockman
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Patent number: 11359355Abstract: 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: GrantFiled: May 18, 2018Date of Patent: June 14, 2022Assignee: ESCO GROUP LLCInventors: Mark A. Cheyne, Noah D. Cowgill, Michael B. Roska, Donald M. Conklin, Scott H. Zenier, Chris J. Hainley
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Publication number: 20220145595Abstract: 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: ApplicationFiled: January 24, 2022Publication date: May 12, 2022Applicant: ESCO GROUP LLCInventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
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Patent number: 11261585Abstract: 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: GrantFiled: March 30, 2020Date of Patent: March 1, 2022Assignee: ESCO GROUP LLCInventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
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Patent number: 11155982Abstract: 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: GrantFiled: April 14, 2020Date of Patent: October 26, 2021Assignee: ESCO GROUP LLCInventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20210238829Abstract: 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 aroundType: ApplicationFiled: February 3, 2021Publication date: August 5, 2021Applicant: ESCO Group LLCInventors: Timothy E. Griffin, Michael B. Roska, Kelly A. Fox, Sean Singh
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Patent number: 11072913Abstract: 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: GrantFiled: May 18, 2018Date of Patent: July 27, 2021Assignee: ESCO GROUP LLCInventors: Mark A. Cheyne, Noah D. Cowgill, Michael B. Roska, Donald M. Conklin, Scott H. Zenier, Chris J. Hainley
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Publication number: 20200308804Abstract: 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: ApplicationFiled: March 27, 2020Publication date: October 1, 2020Applicant: ESCO Group LLCInventors: Robin K. Churchill, Michael B. Roska, Ulf Daniel Widlund
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Publication number: 20200240120Abstract: 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: ApplicationFiled: April 14, 2020Publication date: July 30, 2020Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20200224393Abstract: 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: ApplicationFiled: March 30, 2020Publication date: July 16, 2020Applicant: ESCO GROUP LLCInventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
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Patent number: 10655307Abstract: 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: GrantFiled: January 23, 2018Date of Patent: May 19, 2020Assignee: ECSO Group LLCInventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20200131743Abstract: 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: ApplicationFiled: October 31, 2019Publication date: April 30, 2020Applicant: ESCO Group LLCInventors: Bruce C. Bingham, Michael B. Roska, Darrin Harding, Mark Beatley, Cornelius J. Brockman
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Publication number: 20200122152Abstract: 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: ApplicationFiled: December 20, 2019Publication date: April 23, 2020Applicant: ESCO GROUP LLCInventors: Michael B. Roska, Ty D. Porter, Severn D. Durand
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Patent number: 10612214Abstract: 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: GrantFiled: May 5, 2017Date of Patent: April 7, 2020Assignee: ESCO GROUP LLCInventors: Scott H. Zenier, Michael B. Roska, Joel S. Hankland
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Patent number: 10525477Abstract: 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: GrantFiled: April 29, 2015Date of Patent: January 7, 2020Assignee: ESCO GROUP LLCInventors: Michael B. Roska, Ty D. Porter, Severn D. Durand