Patents by Inventor Lumin Ma
Lumin Ma 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: 11506055Abstract: A pumpable resin system for installation of mine roof bolts includes a resin feed pump in fluid communication with a resin source, a catalyst feed pump in fluid communication with a catalyst source, a resin injection cylinder pump in fluid communication with the resin feed pump, with the resin feed pump configured to transfer resin to the resin injection cylinder pump when the resin feed pump is actuated, a catalyst injection cylinder pump in fluid communication with the catalyst feed pump, the catalyst feed pump configured to transfer catalyst to the catalyst injection cylinder pump when the catalyst feed pump is actuated, a hydraulic piston, with the resin injection cylinder pump and the catalyst injection cylinder pump slaved together and controlled by the hydraulic piston, a resin line in fluid communication with the resin injection cylinder pump, and a catalyst line in fluid communication with the catalyst injection cylinder pump.Type: GrantFiled: March 18, 2021Date of Patent: November 22, 2022Assignee: J-LOK Co.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20210207480Abstract: A pumpable resin system for installation of mine roof bolts includes a resin feed pump in fluid communication with a resin source, a catalyst feed pump in fluid communication with a catalyst source, a resin injection cylinder pump in fluid communication with the resin feed pump, with the resin feed pump configured to transfer resin to the resin injection cylinder pump when the resin feed pump is actuated, a catalyst injection cylinder pump in fluid communication with the catalyst feed pump, the catalyst feed pump configured to transfer catalyst to the catalyst injection cylinder pump when the catalyst feed pump is actuated, a hydraulic piston, with the resin injection cylinder pump and the catalyst injection cylinder pump slaved together and controlled by the hydraulic piston, a resin line in fluid communication with the resin injection cylinder pump, and a catalyst line in fluid communication with the catalyst injection cylinder pump.Type: ApplicationFiled: March 18, 2021Publication date: July 8, 2021Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Patent number: 10954787Abstract: A pumpable resin system for installation of mine roof bolts includes a resin feed cylinder pump, a catalyst feed cylinder pump, a resin cylinder pump in fluid communication with the resin feed cylinder, with the resin feed cylinder configured to transfer resin to the resin cylinder pump when the resin feed cylinder pump is actuated, a catalyst cylinder pump in fluid communication with the catalyst feed cylinder, with the catalyst feed cylinder configured to transfer catalyst to the catalyst cylinder pump when the catalyst feed cylinder pump is actuated, a resin line in fluid communication with the resin cylinder pump, and a catalyst line in fluid communication with the catalyst cylinder pump.Type: GrantFiled: September 26, 2019Date of Patent: March 23, 2021Assignee: J-LOK Co.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Patent number: 10941657Abstract: A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, with the elongated body having a first threaded section, a second threaded section, and a non-threaded section positioned between the first threaded section and the second threaded section. The non-threaded section is configured to yield under loading when the mine bolt is installed with grout in a bore hole.Type: GrantFiled: July 10, 2017Date of Patent: March 9, 2021Assignee: FCI Holdings Delaware, Inc.Inventors: Lumin Ma, Dakota Faulkner, John C. Stankus
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Patent number: 10669848Abstract: A rock bolt system includes a fitting including a main body defining a central opening configured to receive a rock bolt and a grout body defining a space between the main body and the grout body, with the main body defining a grout opening in fluid communication with the central opening. The main body is rotatable relative to the grout body, with the grout body defining a resin port and a catalyst port. The resin port and the catalyst port are in fluid communication with the space and the grout opening of the main body. The system further includes a rock bolt defining a central opening, with the central opening of the rock bolt configured to be in fluid communication with the central opening of the fitting when the rock bolt is secured to the fitting.Type: GrantFiled: January 9, 2019Date of Patent: June 2, 2020Assignee: J-LOK Co.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20200018165Abstract: A pumpable resin system for installation of mine roof bolts includes a resin feed cylinder pump, a catalyst feed cylinder pump, a resin cylinder pump in fluid communication with the resin feed cylinder, with the resin feed cylinder configured to transfer resin to the resin cylinder pump when the resin feed cylinder pump is actuated, a catalyst cylinder pump in fluid communication with the catalyst feed cylinder, with the catalyst feed cylinder configured to transfer catalyst to the catalyst cylinder pump when the catalyst feed cylinder pump is actuated, a resin line in fluid communication with the resin cylinder pump, and a catalyst line in fluid communication with the catalyst cylinder pump.Type: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Patent number: 10487655Abstract: A pumpable resin system for installation of mine roof bolts includes a resin reservoir configured to receive resin, a catalyst reservoir configured to receive catalyst, a resin pump arrangement in fluid communication with the resin reservoir, a catalyst pump arrangement in fluid communication with the catalyst reservoir, a delivery line in fluid communication with at least one of the resin pump arrangement and the catalyst pump arrangement, and a bolter arm configured to drill boreholes and install mine roof bolts. The delivery line is configured to deliver resin and catalyst from the resin reservoir and the catalyst reservoir to a borehole via the bolter arm.Type: GrantFiled: March 2, 2016Date of Patent: November 26, 2019Assignee: J-LOK Co.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20190178083Abstract: A mine roof bolting system including a bearing member having a first member, a second member spaced apart from the first member, and apertures defined through each of the first and second members, and a mine roof bolt extending through the apertures. When a load is applied to the mine roof bolting system, the bearing member yields or deforms. Also, a method for providing a roof support in an underground mine including providing the bearing member and inserting a mine roof bolt through the apertures of the bearing member and into a borehole in a mine roof, wherein the bearing member yields upon application of a load in excess of a predetermined load.Type: ApplicationFiled: September 25, 2017Publication date: June 13, 2019Inventors: John C. Stankus, Dakota Faulkner, Lumin Ma
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Publication number: 20190145258Abstract: A rock bolt system includes a fitting including a main body defining a central opening configured to receive a rock bolt and a grout body defining a space between the main body and the grout body, with the main body defining a grout opening in fluid communication with the central opening. The main body is rotatable relative to the grout body, with the grout body defining a resin port and a catalyst port. The resin port and the catalyst port are in fluid communication with the space and the grout opening of the main body. The system further includes a rock bolt defining a central opening, with the central opening of the rock bolt configured to be in fluid communication with the central opening of the fitting when the rock bolt is secured to the fitting.Type: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Patent number: 10253628Abstract: A rock bolt system includes a fitting having a main body defining a central opening configured to receive a rock bolt, with the main body defining a grout opening in fluid communication with the central opening, and a grout body defining a space between the main body and the grout body. The main body is rotatable relative to the grout body, with the grout body defining a resin port and a catalyst port. The resin port and the catalyst port are in fluid communication with the space and the grout opening of the main body. A rock bolt defines a central opening, with the central opening of the rock bolt configured to be in fluid communication with the central opening of the fitting when the rock bolt is secured to the fitting.Type: GrantFiled: September 1, 2017Date of Patent: April 9, 2019Assignee: J-LOK CO.Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20180066519Abstract: A rock bolt system includes a fitting having a main body defining a central opening configured to receive a rock bolt, with the main body defining a grout opening in fluid communication with the central opening, and a grout body defining a space between the main body and the grout body. The main body is rotatable relative to the grout body, with the grout body defining a resin port and a catalyst port. The resin port and the catalyst port are in fluid communication with the space and the grout opening of the main body. A rock bolt defines a central opening, with the central opening of the rock bolt configured to be in fluid communication with the central opening of the fitting when the rock bolt is secured to the fitting.Type: ApplicationFiled: September 1, 2017Publication date: March 8, 2018Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20180030831Abstract: A pumpable resin system for installation of mine roof bolts includes a resin reservoir configured to receive resin, a catalyst reservoir configured to receive catalyst, a resin pump arrangement in fluid communication with the resin reservoir, a catalyst pump arrangement in fluid communication with the catalyst reservoir, a delivery line in fluid communication with at least one of the resin pump arrangement and the catalyst pump arrangement, and a bolter arm configured to drill boreholes and install mine roof bolts. The delivery line is configured to deliver resin and catalyst from the resin reservoir and the catalyst reservoir to a borehole via the bolter arm.Type: ApplicationFiled: March 2, 2016Publication date: February 1, 2018Inventors: Dakota Faulkner, John C. Stankus, Richard Wharton, Lumin Ma
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Publication number: 20180016900Abstract: A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, with the elongated body having a first threaded section, a second threaded section, and a non-threaded section positioned between the first threaded section and the second threaded section. The non-threaded section is configured to yield under loading when the mine bolt is installed with grout in a bore hole.Type: ApplicationFiled: July 10, 2017Publication date: January 18, 2018Inventors: Lumin Ma, Dakota Faulkner, John C. Stankus
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Publication number: 20170191365Abstract: An overcast system to block an intersection between two or more mine passageways so as to prevent the mixture of intake air with return air. The overcast system includes a first sidewall formed of one or more prefabricated panels, a second sidewall formed of one or more prefabricated panels, and a top member formed of one or more prefabricated panels, such that the top side spans the width between the first sidewall and the second sidewall. A fire-resistant coating is applied to at least a portion of the first sidewall, the second sidewall, or the top member to provide an air-tight, fire-resistant structure. Each of the one or more prefabricated panels is formed from a composite material having one or more structural studs embedded at least partially therein.Type: ApplicationFiled: December 30, 2016Publication date: July 6, 2017Inventors: John C. Stankus, Richard Wharton, Fred Stafford, Lumin Ma, Kevin Jinrong Ma, Dakota Faulkner
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Patent number: 9011043Abstract: A method for designing and fabricating a mine seal includes determining an initial thickness for a mine seal based on a predetermined underground opening, developing and solving a numerical model for response of the mine seal upon application of a blasting pressure, and determining whether the mine seal meets predetermined design criteria. A mine seal having a minimum seal thickness may be fabricated after determining the mine seal meets the predetermined design criteria.Type: GrantFiled: July 28, 2011Date of Patent: April 21, 2015Assignee: FCI Holdings Delaware, Inc.Inventors: John C. Stankus, Jinrong Ma, Lumin Ma
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Publication number: 20120027521Abstract: A method for designing and fabricating a mine seal includes determining an initial thickness for a mine seal based on a predetermined underground opening, developing and solving a numerical model for response of the mine seal upon application of a blasting pressure, and determining whether the mine seal meets predetermined design criteria. A mine seal having a minimum seal thickness may be fabricated after determining the mine seal meets the predetermined design criteria.Type: ApplicationFiled: July 28, 2011Publication date: February 2, 2012Applicant: FCI Holdings Delaware, Inc.Inventors: John C. Stankus, Jinrong Ma, Lumin Ma