Patents by Inventor Richard S. Henderson
Richard S. Henderson 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: 11939993Abstract: The present invention is directed to a molten metal pump comprising an elongated pumping chamber tube with a base end and an open top end. A shaft extends into the tube and rotates an impeller therein, the impeller rotates proximate the base end. The tube has a diameter at least 1.1 times the diameter of the impeller. The pumping chamber tube preferably has a length at least three times the height of the impeller. The base end includes an inlet and the top end includes a tangential outlet. Rotation of the impeller draws molten metal into the pumping chamber and creates a rotating equilibrium vortex that rises up the walls of the pumping chamber. The rotating vortex adjacent the top end exists the device via the tangential outlet.Type: GrantFiled: November 29, 2021Date of Patent: March 26, 2024Assignee: PYROTEK, INC.Inventors: Mark A. Bright, Jason Tetkoskie, Richard S. Henderson, Herbert L Ritchie, Jr., Jorge A. Morando
-
Patent number: 11619448Abstract: A molten metal scrap submergence system comprising a furnace and a vortexing scrap submergence well. The vortexing scrap submergence well includes a diverter suspended above the well and oriented for immersion in a bath of molten metal circulating within the well. The system, or an alternative scrap submergence system, can include a hood element disposed in an overlapping position with regard to a top opening of the scrap submergence well. The hood at least substantially seals the top opening. The hood element includes a scrap piece feed chute and a burner allowing carbon containing vapor evaporated from the surface of the molten scrap pieces to combust and form predominantly water. The system, or an alternative scrap submergence system can include internal side walls of the well with a first diameter portion adjacent and above said ramp and a second, larger diameter portion above said first portion.Type: GrantFiled: August 29, 2017Date of Patent: April 4, 2023Assignee: Pyrotek, Inc.Inventors: Richard S. Henderson, Chris T. Vild, Jason Tetkoskie
-
Publication number: 20220134415Abstract: A molten metal filtration apparatus is provided. The apparatus includes a filter chamber having a floor, a metal inlet, a metal outlet, and a wall surface adapted to be partitioned by at least one filter element having an open cell structure characterized by a plurality of interconnected voids. The filter element partitions the filter chamber. At least one heater device is provided at an elevation within the filtration chamber that is equal to or below the filter element.Type: ApplicationFiled: February 14, 2020Publication date: May 5, 2022Inventors: Richard S. HENDERSON, Mike TOMASSI, Mark REYNOLDS
-
Publication number: 20220082101Abstract: The present invention is directed to a molten metal pump comprising an elongated pumping chamber tube with a base end and an open top end. A shaft extends into the tube and rotates an impeller therein, the impeller rotates proximate the base end. The tube has a diameter at least 1.1 times the diameter of the impeller. The pumping chamber tube preferably has a length at least three times the height of the impeller. The base end includes an inlet and the top end includes a tangential outlet. Rotation of the impeller draws molten metal into the pumping chamber and creates a rotating equilibrium vortex that rises up the walls of the pumping chamber. The rotating vortex adjacent the top end exists the device via the tangential outlet.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Inventors: Mark A. Bright, Jason Tetkoskie, Richard S. Henderson, Herbert L. Ritchie, JR., Jorge A. Morando
-
Patent number: 11193492Abstract: A molten metal pump comprised of a base defining a pumping chamber, an impeller disposed within said pumping chamber, an outlet passage extending from said pumping chamber, said outlet passage being defined by opposed top and bottom walls and opposed side walls, wherein said top and side walls terminate at an intersection with a boundary of the base and said bottom wall terminates inward from said boundary.Type: GrantFiled: July 24, 2017Date of Patent: December 7, 2021Assignee: PYROTEK, INC.Inventors: Richard S. Henderson, Jason Tetkoskie, Edward W. Shilling
-
Patent number: 11187233Abstract: The present invention is directed to a molten metal pump comprising an elongated pumping chamber tube with a base end and an open top end. A shaft extends into the tube and rotates an impeller therein, the impeller rotates proximate the base end. The tube has a diameter at least 1.1 times the diameter of the impeller. The pumping chamber tube preferably has a length at least three times the height of the impeller. The base end includes an inlet and the top end includes a tangential outlet. Rotation of the impeller draws molten metal into the pumping chamber and creates a rotating equilibrium vortex that rises up the walls of the pumping chamber. The rotating vortex adjacent the top end exists the device cia the tangential outlet.Type: GrantFiled: October 20, 2016Date of Patent: November 30, 2021Assignee: PYROTEK, INC.Inventors: Mark A. Bright, Jason Tetkoskie, Richard S. Henderson, Herbert L. Ritchie, Jr., Jorge A. Morando
-
Patent number: 11136984Abstract: Disclosed is a centrifugal molten metal pump assembly and associated system for controlled delivery of molten metal to molds. The pump assembly comprises a shaft, an impeller coupled to the shaft, a controller to control a rotational speed of the impeller according to a programmable fill profile while delivering the molten metal to the mold. In some embodiments, the pump assembly further comprises a throttle to manipulate a flow rate or pressure of the molten metal relative to a rotational speed of the impeller. The associated system comprises a melting furnace and one or more holding furnaces, each holding furnace including at least one pump assembly therein. Each holding furnace may be of an open configuration to allow for uninterrupted flow of the molten metal from the melting furnace. The system may provide controlled delivery of the molten metal to the mold at a desired flow rate or pressure.Type: GrantFiled: October 17, 2012Date of Patent: October 5, 2021Assignee: PYROTEK, INC.Inventors: Jon Tipton, Richard S. Henderson
-
Patent number: 11131309Abstract: A molten metal pump includes an impeller, a pump base housing at least partially enclosing the impeller, a shaft connected to the impeller, a motor connected to the shaft, a motor mount plate for supporting the motor; and a post for connecting the motor mount plate to the pump base housing. The molten metal pump can include a connector that connects the post to the motor mount plate. The molten metal pump can include a socket for connecting the shaft to the motor. The shaft can comprise an assembly including an elongated metal rod having a first end and a second end and a metal non-circular drive member attached at the second end of the elongated metal rod.Type: GrantFiled: November 16, 2017Date of Patent: September 28, 2021Assignee: PYROTEK, INC.Inventors: Jorge A. Morando, Jon Tipton, George S. Mordue, Mark Bright, Lennard Lutes, Richard S. Henderson, Chris T. Vild
-
Publication number: 20210148374Abstract: A molten metal pump comprised of a metal base defining a pumping chamber is provided. The pump further includes a motor mount adapted to receive a motor, at least one metal post extending between the base and the motor mount, and a metal shaft disposed between the motor and an impeller disposed in the pumping chamber. A bearing ring engages the impeller. The pumping chamber will include an inlet and an outlet. A steel riser tube in fluid communication the outlet is also provided.Type: ApplicationFiled: January 25, 2021Publication date: May 20, 2021Inventors: Richard S. Henderson, Jon Tipton, Andrew Horsfall, Peter Cornelis Jetten, Paul Bosworth
-
Patent number: 10843258Abstract: In accordance with one aspect of the present exemplary embodiment, a molten metal pump comprising a refractory material body defining an elongated chamber is provided. The chamber is configured to receive a shaft and impeller assembly. The chamber includes an open top through which the shaft passes and a bottom inlet. The impeller is located in or adjacent the inlet. The body further defines an elongated passage adjacent to the chamber. An opening provides fluid communication between the elongated passage and the elongated chamber. The elongated passage is in fluid communication with a discharge channel configured to direct molten metal at least substantially perpendicular to an elongated axis of the elongated chamber.Type: GrantFiled: June 21, 2017Date of Patent: November 24, 2020Assignee: Pyrotek, Inc.Inventors: Jason Tetkoskie, Richard S. Henderson
-
Patent number: 10809005Abstract: A molten metal processing apparatus selected from a pump, a degasser, a flux injector, and a scrap submergence device constructed to include at least one element comprised of C/C composite.Type: GrantFiled: August 13, 2015Date of Patent: October 20, 2020Assignee: Pyrotek, Inc.Inventors: Richard S. Henderson, Jason Tetkoskie, Lennard Lutes, Jon Tipton
-
Patent number: 10731922Abstract: A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in the chamber, an outlet positioned in the base of the chamber, and a ramp adjacent the side wall of the chamber. The device further including a removable vane, an inwardly or outwardly sloped ramp surface, and/or diverter.Type: GrantFiled: March 14, 2018Date of Patent: August 4, 2020Assignee: PYROTEK, INC.Inventors: Richard S. Henderson, Jason Tetkoskie, Chris T. Vild, Edward Shilling
-
Publication number: 20200182246Abstract: A molten metal pump comprised of a base defining a pumping chamber, an impeller disposed within said pumping chamber, an outlet passage extending from said pumping chamber, said outlet passage being defined by opposed top and bottom walls and opposed side walls, wherein said top and side walls terminate at an intersection with a boundary of the base and said bottom wall terminates inward from said boundary.Type: ApplicationFiled: July 24, 2017Publication date: June 11, 2020Applicant: Pyrotek, Inc.Inventors: Richard S. HENDERSON, Jason TETKOSKIE, Edward W. SHILLING
-
Publication number: 20190351481Abstract: In accordance with one aspect of the present exemplary embodiment, a molten metal pump comprising a refractory material body defining an elongated chamber is provided. The chamber is configured to receive a shaft and impeller assembly. The chamber includes an open top through which the shaft passes and a bottom inlet. The impeller is located in or adjacent the inlet. The body further defines an elongated passage adjacent to the chamber. An opening provides fluid communication between the elongated passage and the elongated chamber. The elongated passage is in fluid communication with a discharge channel configured to direct molten metal at least substantially perpendicular to an elongated axis of the elongated chamber.Type: ApplicationFiled: June 21, 2017Publication date: November 21, 2019Inventors: Jason Tetkoskie, Richard S. Henderson
-
Patent number: 10415884Abstract: A method of fluxing or degassing a molten metal residing as a bath in a furnace. The bath of molten metal includes a bath surface height and the method provides at least one rotating impeller in the molten metal bath to initiate a flow of the molten metal. The flow in the molten metal results in elevating a portion of the molten metal above the bath surface height where at least one of a fluxing agent and an inert gas is introduced into the elevated portion of the molten metal.Type: GrantFiled: May 14, 2014Date of Patent: September 17, 2019Assignee: PYROTEK, INC.Inventors: David Schlicht, Andrew Horsfall, Richard S. Henderson, Lennard Lutes
-
Publication number: 20190226764Abstract: A molten metal scrap submergence system comprising a furnace and a vortexing scrap submergence well. The vortexing scrap submergence well includes a diverter suspended above the well and oriented for immersion in a bath of molten metal circulating within the well. The system, or an alternative scrap submergence system, can include a hood element disposed in an overlapping position with regard to a top opening of the scrap submergence well. The hood at least substantially seals the top opening. The hood element includes a scrap piece feed chute and a burner allowing carbon containing vapor evaporated from the surface of the molten scrap pieces to combust and form predominantly water. The system, or an alternative scrap submergence system can include internal side walls of the well with a first diameter portion adjacent and above said ramp and a second, larger diameter portion above said first portion.Type: ApplicationFiled: August 29, 2017Publication date: July 25, 2019Inventors: Richard S. HENDERSON, Chris T. Vild, Jason TETKOSKIE
-
Patent number: 10322450Abstract: The present invention is directed to a molten metal transfer system. The system includes a pump having interchangeable low flow and high flow impellers and selective low flow and high flow transfer troughs.Type: GrantFiled: February 4, 2015Date of Patent: June 18, 2019Assignee: PYROTEK, INC.Inventors: Richard S. Henderson, Jason Tetkoskie
-
Patent number: 10131967Abstract: A scrap submergence device having an open top chamber including walls constructed of a heat resistant material is provided. The chamber includes an inlet in the side wall of the chamber for receiving molten metal, an outlet in the side wall of said chamber, and an interior wall extending from the base wall. The interior wall has a height lower than a height of the at least one side wall. The inlet is disposed on a first side of the interior wall and the outlet is disposed on a second side of the interior wall.Type: GrantFiled: December 24, 2015Date of Patent: November 20, 2018Assignee: PYROTEK, INC.Inventors: Jason Tetkoskie, Richard S. Henderson
-
Publication number: 20180245847Abstract: A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in the chamber, an outlet positioned in the base of the chamber, and a ramp adjacent the side wall of the chamber. The device further including a removable vane, an inwardly or outwardly sloped ramp surface, and/or diverter.Type: ApplicationFiled: March 14, 2018Publication date: August 30, 2018Applicant: PYROTEK, INC.Inventors: Richard S. Henderson, Jason Tetkoskie, Chris T. Vild, Edward Shilling
-
Publication number: 20180187685Abstract: A molten metal pump includes an impeller, a pump base housing at least partially enclosing the impeller, a shaft connected to the impeller, a motor connected to the shaft, a motor mount plate for supporting the motor; and a post for connecting the motor mount plate to the pump base housing. The molten metal pump can include a connector that connects the post to the motor mount plate. The molten metal pump can include a socket for connecting the shaft to the motor. The shaft can comprise an assembly including an elongated metal rod having a first end and a second end and a metal non-circular drive member attached at the second end of the elongated metal rod.Type: ApplicationFiled: November 16, 2017Publication date: July 5, 2018Inventors: Jorge A. Morando, Jon Tipton, George S. Mordue, Mark Bright, Lennard Lutes, Richard S. Henderson, Chris T. Vild