Patents by Inventor Christopher A. Johnston
Christopher A. Johnston 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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Publication number: 20220389689Abstract: Wear caps protect the wearable surfaces of an adapter for an earth working equipment. These wear caps are subjected to erosion and wear by contact with abrasive material, such as experienced in an excavating operation. The wear caps can be attached to upper and lower legs of the adapter and protect them from wear. Each wear cap is secured to a retention feature on an independent mounting structure. The independent mounting structures are aligned and staggered such that installation of a wear cap onto the rearward independent mounting structure is conducted first. The independent mounting structures on an upper leg may be situated one above the other.Type: ApplicationFiled: August 11, 2022Publication date: December 8, 2022Applicant: ESCO Group LLLCInventors: Abram Hernandez, Yesenia Meraz-Torres, Christopher A. Johnston
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Publication number: 20220325505Abstract: A wear member for attaching to a digging edge of a bucket includes a front end and bifurcated legs extending rearwardly from the front end. Each leg includes an inner surface to face the digging edge, a rear wall, and a lock opening to receive a lock therethrough. At least one of the bifurcated legs includes a front portion, a rear portion, and a coupling feature. The rear portion defines a stabilizing region comprising a front facing lateral wall forward of the rear wall.Type: ApplicationFiled: April 11, 2022Publication date: October 13, 2022Applicant: ESCO Group LLCInventors: Christopher A. Johnston, Scott H. Zenier, Joel S. Hankland, Bruce C. Bingham, Charles G. Ollinger, IV, Kevin S. Stangeland, Zachary R. Englen
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Patent number: 11447937Abstract: Wear caps protect the wearable surfaces of an adapter for an earth working equipment. These wear caps are subjected to erosion and wear by contact with abrasive material, such as experienced in an excavating operation. The wear caps can be attached to upper and lower legs of the adapter and protect them from wear. Each wear cap is secured to a retention feature on an independent mounting structure. The independent mounting structures are aligned and staggered such that installation of a wear cap onto the rearward independent mounting structure is conducted first. The independent mounting structures on an upper leg may be situated one above the other.Type: GrantFiled: February 7, 2020Date of Patent: September 20, 2022Assignee: ESCO GROUP LLCInventors: Abram Hernandez, Yesenia Meraz-Torres, Christopher A. Johnston
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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: 20200256040Abstract: Wear caps protect the wearable surfaces of an adapter for an earth working equipment. These wear caps are subjected to erosion and wear by contact with abrasive material, such as experienced in an excavating operation. The wear caps can be attached to upper and lower legs of the adapter and protect them from wear. Each wear cap is secured to a retention feature on an independent mounting structure. The independent mounting structures are aligned and staggered such that installation of a wear cap onto the rearward independent mounting structure is conducted first. The independent mounting structures on an upper leg may be situated one above the other.Type: ApplicationFiled: February 7, 2020Publication date: August 13, 2020Applicant: ESCO Group LLCInventors: Abram Hernandez, Yesenia Meraz-Torres, Christopher A. Johnston
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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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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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Patent number: 10024036Abstract: 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: March 24, 2016Date of Patent: July 17, 2018Assignee: ESCO CORPORATIONInventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20180148908Abstract: 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: January 23, 2018Publication date: May 31, 2018Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20160201299Abstract: 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: March 24, 2016Publication date: July 14, 2016Inventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Patent number: 9322150Abstract: 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 10, 2014Date of Patent: April 26, 2016Assignee: ESCO CORPORATIONInventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland
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Publication number: 20140215868Abstract: 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 10, 2014Publication date: August 7, 2014Applicant: ESCO CORPORATIONInventors: Christopher A. Johnston, Donald M. Conklin, Michael B. Roska, William D. Rossi, Kevin S. Stangeland