Patents by Inventor Jonathan Lewis Buelow
Jonathan Lewis Buelow 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: 11536390Abstract: A subplate mounted (SPM) valve includes a valve body having pilot port, a piston configured to be actuated by fluid from the pilot port, a first control chamber and second control chamber each formed in the valve body and fluidicly isolated from the pilot port, a first flow restrictor fluidicly disposed between the first control chamber and the second control chamber and configured to restrict flow in at least one direction between the first control chamber and the second control chamber, a cage coupled to the valve body and having a supply port, a return port, and a work port, and a spool slidably engaged with the cage and configured to selectively restrict flow between the supply port and the return port by actuation of the piston.Type: GrantFiled: May 13, 2019Date of Patent: December 27, 2022Assignee: National Oilwell Varco, L.P.Inventors: James Ray Landrith, II, Frank B. Springett, Eric Trevor Ensley, Jonathan Lewis Buelow, James W. Weir, Travis James Miller
-
Publication number: 20220260162Abstract: A valve for a well system including a valve housing including a first housing port, a second housing port, and a bore, a piston received in the bore and including a first end, a second end, and an annular flange including a first annular surface and a second annular surface both of which are in fluid communication with the second housing port, a piston seal disposed in the outer surface of the piston and in sealing engagement with an inner surface of the bore, and a cage assembly that includes a cage including a bore, a first cage port, a second cage port, and a third cage port, and a spool disposed in the cage and coupled to the piston, the spool including a throughbore.Type: ApplicationFiled: May 9, 2022Publication date: August 18, 2022Applicant: National Oilwell Varco, L.P.Inventors: James W. Weir, Jonathan Lewis Buelow
-
Patent number: 11353124Abstract: A valve for a well system including a valve housing including a first housing port, a second housing port, and a bore, a piston received in the bore and including a first end, a second end, and an annular flange including a first annular surface and a second annular surface both of which are in fluid communication with the second housing port, a piston seal disposed in the outer surface of the piston and in sealing engagement with an inner surface of the bore, and a cage assembly that includes a cage including a bore, a first cage port, a second cage port, and a third cage port, and a spool disposed in the cage and coupled to the piston, the spool including a throughbore.Type: GrantFiled: June 14, 2017Date of Patent: June 7, 2022Assignee: National Oilwell Varco, L.P.Inventors: James W. Weir, Jonathan Lewis Buelow
-
Publication number: 20190264822Abstract: A method for assembling a valve for a well system including disposing a longitudinal axis of a piston of the valve in a radially offset position relative a longitudinal axis of a spool of the valve, axially displacing the piston into a throughbore of the spool while the longitudinal axis of the piston is radially offset from the longitudinal axis of the spool, and radially displacing the piston relative the spool until the piston is received within the bore of a connector coupled to the spool to releasably couple the piston to the spool.Type: ApplicationFiled: June 14, 2017Publication date: August 29, 2019Applicant: National Oilwell Varco, L.P.Inventors: James W. Weir, Jonathan Lewis Buelow
-
Publication number: 20190264829Abstract: A subplate mounted (SPM) valve includes a valve body having pilot port, a piston configured to be actuated by fluid from the pilot port, a first control chamber and second control chamber each formed in the valve body and fluidicly isolated from the pilot port, a first flow restrictor fluidicly disposed between the first control chamber and the second control chamber and configured to restrict flow in at least one direction between the first control chamber and the second control chamber, a cage coupled to the valve body and having a supply port, a return port, and a work port, and a spool slidably engaged with the cage and configured to selectively restrict flow between the supply port and the return port by actuation of the piston.Type: ApplicationFiled: May 13, 2019Publication date: August 29, 2019Applicant: National Oilwell Varco, L.P.Inventors: James Ray Landrith, II, Frank B. Springett, Eric Trevor Ensley, Jonathan Lewis Buelow, James W. Weir, Travis James Miller
-
Patent number: 10337638Abstract: The disclosure provides devices and methods for controlling the actuation rates of SPM valves by bi-directionally controlling the fluid which actuates the valve or by maintaining enclosed volumes which communicate with each other through predetermined restrictions as the valve actuates. These enclosed volumes can be completely isolated, depth compensated, share fluid with the pilot actuating fluid, or utilize the main system fluid. The restrictions can be modified to increase or decrease the actuation rates of the SPM valve. The disclosure also provides control over the main system fluid passage opening and closing positions as well as how rapidly the flow passage areas increase or decrease while opening or closing the valve.Type: GrantFiled: May 5, 2015Date of Patent: July 2, 2019Assignee: National Oilwell Varco, L.P.Inventors: James Ray Landrith, II, Frank B. Springett, Eric Trevor Ensley, Jonathan Lewis Buelow, James W. Weir, Travis James Miller
-
Patent number: 9428994Abstract: The present disclosure relates to a monitor for a blowout preventer of a wellbore. The blowout preventer includes a housing, rams, and an actuator comprising a cylinder with a piston. The piston is operatively connectable with the ram and movable therewith. The monitor includes a monitor base operatively connectable to the cylinder (the monitor base having an interior side inside the cylinder and an exterior side outside the cylinder), an interior plate positionable inside the cylinder about the interior side of the base (the interior plate operatively connectable to the piston and movable therewith), an exterior plate positionable outside the cylinder about the exterior surface of the monitor base (the exterior plate coupled by magnets to the interior plate and rotatable therewith), and a trigger sensor operatively connectable about the monitor base and the exterior plate to detect rotation thereof whereby a position of the ram may be determined.Type: GrantFiled: June 27, 2014Date of Patent: August 30, 2016Assignee: National Oilwell Varco, L.P.Inventors: James Ray Landrith, II, Roger Dale Brown, Jonathan Lewis Buelow, Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
-
Publication number: 20160153578Abstract: The disclosure provides devices and methods for controlling the actuation rates of SPM valves by bi-directionally controlling the fluid which actuates the valve or by maintaining enclosed volumes which communicate with each other thru predetermined restrictions as the valve actuates. These enclosed volumes can be completely isolated, depth compensated, share fluid with the pilot actuating fluid, or utilize the main system fluid. The restrictions can be modified to increase or decrease the actuation rates of the SPM valve. The disclosure also provides control over the main system fluid passage opening and closing positions as well as how rapidly the flow passage areas increase or decrease while opening or closing the valve.Type: ApplicationFiled: May 5, 2015Publication date: June 2, 2016Inventors: James Ray Landrith, II, Frank B. Springett, Eric Trevor Ensley, Jonathan Lewis Buelow, James W. Weir, Travis James Miller
-
Publication number: 20140311735Abstract: The present disclosure relates to a monitor for a blowout preventer of a wellbore. The blowout preventer includes a housing, rams, and an actuator comprising a cylinder with a piston. The piston is operatively connectable with the ram and movable therewith. The monitor includes a monitor base operatively connectable to the cylinder (the monitor base having an interior side inside the cylinder and an exterior side outside the cylinder), an interior plate positionable inside the cylinder about the interior side of the base (the interior plate operatively connectable to the piston and movable therewith), an exterior plate positionable outside the cylinder about the exterior surface of the monitor base (the exterior plate coupled by magnets to the interior plate and rotatable therewith), and a trigger sensor operatively connectable about the monitor base and the exterior plate to detect rotation thereof whereby a position of the ram may be determined.Type: ApplicationFiled: June 27, 2014Publication date: October 23, 2014Inventors: James Ray Landrith, II, Roger Dale Brown, Jonathan Lewis Buelow, Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
-
Publication number: 20140167407Abstract: A quick disconnect coupler is provided that is particularly suited for use as a case drain coupler in an agricultural work vehicle. The coupler includes a male component lockingly received within a body of a female component in a coupled state of the coupler. The female component includes an external sleeve that is linearly slidable along a slide surface of the body to engage and release the male component. A cover is engaged on the female component with a first end fixed on the body and an opposite second end fixed to the sleeve. The cover is linearly expandable with movement of the sleeve and protects the slide surface from dust or other contaminates.Type: ApplicationFiled: September 10, 2013Publication date: June 19, 2014Applicant: CNH America, LLCInventors: Jerry Lee Brinkley, Jonathan Lewis Buelow