Patents by Inventor Patrick McDougall
Patrick McDougall 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).
-
Publication number: 20230398000Abstract: A surgical guide tool to visually aid in setting of the desired leg length and femoral offset of a patient inter-operatively during direct anterior approach arthroplasty. The tool comprises a femur contact member able to make at least two point contact with the femur and a pelvis contact member able to make at least one point contact with the pelvis. The femur contact member and the pelvis contact member are coupled together. They can move relative to each other to allow them to contact the femur and pelvis respectively. They can also be made to lock relative to each other to be used as a guide for setting the leg length and femoral offset provided for by the hip prosthetic.Type: ApplicationFiled: October 15, 2021Publication date: December 14, 2023Inventor: Patrick McDougall FELL
-
Publication number: 20230203898Abstract: A wrench for making up or breaking up a pipe joint is provided. The wrench comprises a tong assembly having an upper tong and a lower tong. The upper tong has a first upper tong half pivotably connected to a second upper tong half at their first ends. The lower tong has a first lower tong half pivotably connected to a second lower tong half at their first ends. A central bearing operatively couples the upper tong and the lower tong to allow the upper tong to rotate relative to the lower tong or vice versa. The tong assembly has a ram assembly for pushing or pulling the upper tong at a tangential location thereof and the ram assembly is retracted or extended to move the tong assembly between an open position, a closed position, and a rotated closed position where the upper tong is rotated relative to the lower tong.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Inventors: Todd MCCORRISTON, Vladimir SCEKIC, Patrick MCDOUGALL, Mark TAGGART
-
Patent number: 11608694Abstract: A wrench for making up or breaking up a pipe joint is provided. The wrench comprises a tong assembly having an upper tong and a lower tong. The upper tong has a first upper tong half pivotably connected to a second upper tong half at their first ends. The lower tong has a first lower tong half pivotably connected to a second lower tong half at their first ends. A central bearing operatively couples the upper tong and the lower tong to allow the upper tong to rotate relative to the lower tong or vice versa. The tong assembly has a ram assembly for pushing or pulling the upper tong at a tangential location thereof and the ram assembly is retracted or extended to move the tong assembly between an open position, a closed position, and a rotated closed position where the upper tong is rotated relative to the lower tong.Type: GrantFiled: October 30, 2018Date of Patent: March 21, 2023Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Todd McCorriston, Vladimir Scekic, Patrick McDougall, Mark Taggart
-
Publication number: 20200277826Abstract: A wrench for making up or breaking up a pipe joint is provided. The wrench comprises a tong assembly having an upper tong and a lower tong. The upper tong has a first upper tong half pivotably connected to a second upper tong half at their first ends. The lower tong has a first lower tong half pivotably connected to a second lower tong half at their first ends. A central bearing operatively couples the upper tong and the lower tong to allow the upper tong to rotate relative to the lower tong or vice versa. The tong assembly has a ram assembly for pushing or pulling the upper tong at a tangential location thereof and the ram assembly is retracted or extended to move the tong assembly between an open position, a closed position, and a rotated closed position where the upper tong is rotated relative to the lower tong.Type: ApplicationFiled: October 30, 2018Publication date: September 3, 2020Inventors: Todd MCCORRISTON, Vladimir SCEKIC, Patrick MCDOUGALL, Mark TAGGART
-
Patent number: 10718171Abstract: Modified tong assemblies for drilling rig floor wrenches are provided, each tong assembly providing die blocks having “quick-release” gripping die for gripping and manipulating wellbore tubulars. According to embodiments herein, each tong assembly includes die blocks forming at least two opposed slots for receiving the die within the slots, and having at least one spring-actuated retainer pin for releasably securing the die within the slots.Type: GrantFiled: May 11, 2016Date of Patent: July 21, 2020Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Todd McCorriston, Patrick McDougall, Vladimir Scekic
-
Patent number: 10538976Abstract: A floor wrench for a drilling rig floor is provided. The wrench can include a tong assembly having upper and lower tongs made up of articulated tong blocks that can move and lock together to enclose and make or break a joint between sections of drilling pipe. Each tong block can include a pair of die ram assemblies wherein each tong can have dies to grip the drilling pipe around its circumference. The tong assembly can be mounted in a frame configured for horizontal and vertical movement to and from the pipe joint. In some embodiments, the wrench can further include a pipe spinner having motorized spinners that can spin the upper pipe to form the joint prior to torqueing the joint together, or for uncoupling the upper pipe after the joint is broken.Type: GrantFiled: May 5, 2014Date of Patent: January 21, 2020Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Vladimir Scekic, Todd McCorriston, Patrick McDougall
-
Patent number: 10480264Abstract: An adaptable pipe transitioning system and method that can easily be used with drilling platforms varying in height is provided. The adjustable pipe handler includes a base having a surface forming a track for receiving at least one pipe, a lift arm having a first end being pivotally mounted to the front section of the base and a second end resting against the elevated platform, the lift arm being positionable at an incline from the base, and forming a channel operably corresponding to the track of the base for receiving the at least one pipe therefrom, and a transitioning arm, movably connected to both the base and the lift arm, for positioning the lift arm, the transitioning arm also forming a channel operably corresponding to the track of the base for receiving at least one pipe therefrom and guiding the pipe along the lift arm to the elevated platform.Type: GrantFiled: February 22, 2016Date of Patent: November 19, 2019Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Todd McCorriston, Daniel Huvenaars, Colin Irving, Patrick McDougall, Ronald Pollard
-
Patent number: 10309169Abstract: A spinner wrench for use on a drilling rig is provided. In some embodiments, the wrench can comprise three or more spinning rollers that can be disposed around a tubular. The three or more rollers can be connected to three or more hydraulic rams. In some embodiments, each ram can be connected to a single roller and the axis of the ram can be in a plane perpendicular to the pipe axis but not intersecting the pipe axis. For improved performance during make-up, in planar view, each ram axis can be offset to a counterclockwise direction around the drill pipe axis. For improved performance during break-out, in planar view, each ram axis can be offset to the clockwise direction. In some embodiments, the three or more rollers can be disposed around the drilling pipe or other tubular by a main body and one or more latching bodies.Type: GrantFiled: January 16, 2015Date of Patent: June 4, 2019Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Vladimir Scekic, Todd McCorriston, Patrick McDougall
-
Patent number: 10247279Abstract: A gearbox for a roller in a spinner wrench is provided. In some embodiments, the gearbox can be disposed internally to the roller and can include a sun and planet type epicyclical gear-reduction assembly. In further embodiments, the gearbox can include a second sun and planet type epicyclical gear-reduction assembly to provide for a second, or final, stage reduction. Some embodiments can provide for reduction-ratios close to 3:1 and can be driven by a relatively small motor. The planet gears can be used to drive an annular gear which can spin the roller. In some embodiments, the gearbox can use high-capacity bearings.Type: GrantFiled: January 16, 2015Date of Patent: April 2, 2019Assignee: DRILLFORM TECHNICAL SERVICES LTD.Inventors: Vladimir Scekic, Todd McCorriston, Patrick McDougall
-
Publication number: 20180298704Abstract: Modified tong assemblies for drilling rig floor wrenches are provided, each tong assembly providing die blocks having “quick-release” gripping die for gripping and manipulating wellbore tubulars. According to embodiments herein, each tong assembly includes die blocks forming at least two opposed slots for receiving the die within the slots, and having at least one spring-actuated retainer pin for releasably securing the die within the slots.Type: ApplicationFiled: May 11, 2016Publication date: October 18, 2018Inventors: Todd MCCORRISTON, Patrick MCDOUGALL, Vladimir SCEKIC
-
Publication number: 20180045000Abstract: An adaptable pipe transitioning system and method that can easily be used with drilling platforms varying in height is provided. The adjustable pipe handler includes a base having a surface forming a track for receiving at least one pipe, a lift arm having a first end being pivotally mounted to the front section of the base and a second end resting against the elevated platform, the lift arm being positionable at an incline from the base, and forming a channel operably corresponding to the track of the base for receiving the at least one pipe therefrom, and a transitioning arm, movably connected to both the base and the lift arm, for positioning the lift arm, the transitioning arm also forming a channel operably corresponding to the track of the base for receiving at least one pipe therefrom and guiding the pipe along the lift arm to the elevated platform.Type: ApplicationFiled: February 22, 2016Publication date: February 15, 2018Inventors: Todd MCCORRISTON, Daniel HUVENAARS, Colin IRVING, Patrick MCDOUGALL, Ronald POLLARD
-
Publication number: 20160340989Abstract: A spinner wrench for use on a drilling rig is provided. In some embodiments, the wrench can comprise three or more spinning rollers that can be disposed around a tubular. The three or more rollers can be connected to three or more hydraulic rams. In some embodiments, each ram can be connected to a single roller and the axis of the ram can be in a plane perpendicular to the pipe axis but not intersecting the pipe axis. For improved performance during make-up, in planar view, each ram axis can be offset to a counterclockwise direction around the drill pipe axis. For improved performance during break-out, in planar view, each ram axis can be offset to the clockwise direction. In some embodiments, the three or more rollers can be disposed around the drilling pipe or other tubular by a main body and one or more latching bodies.Type: ApplicationFiled: January 16, 2015Publication date: November 24, 2016Inventors: Vladimir SCEKIC, Todd MCCORRISTON, Patrick MCDOUGALL
-
Publication number: 20160333964Abstract: A gearbox for a roller in a spinner wrench is provided. In some embodiments, the gearbox can be disposed internally to the roller and can include a sun and planet type epicyclical gear-reduction assembly. In further embodiments, the gearbox can include a second sun and planet type epicyclical gear-reduction assembly to provide for a second, or final, stage reduction. Some embodiments can provide for reduction-ratios close to 3:1 and can be driven by a relatively small motor. The planet gears can be used to drive an annular gear which can spin the roller. In some embodiments, the gearbox can use high-capacity bearings.Type: ApplicationFiled: January 16, 2015Publication date: November 17, 2016Inventors: Vladimir SCEKIC, Todd MCCORRISTON, Patrick MCDOUGALL
-
Publication number: 20160102509Abstract: A floor wrench for a drilling rig floor is provided. The wrench can include a tong assembly having upper and lower tongs made up of articulated tong blocks that can move and lock together to enclose and make or break a joint between sections of drilling pipe. Each tong block can include a pair of die ram assemblies wherein each tong can have dies to grip the drilling pipe around its circumference. The tong assembly can be mounted in a frame configured for horizontal and vertical movement to and from the pipe joint. In some embodiments, the wrench can further include a pipe spinner having motorized spinners that can spin the upper pipe to form the joint prior to torqueing the joint together, or for uncoupling the upper pipe after the joint is broken.Type: ApplicationFiled: May 5, 2014Publication date: April 14, 2016Inventors: Vladimir SCEKIC, Todd MCCORRISTON, Patrick MCDOUGALL
-
Publication number: 20120248870Abstract: A battery charger includes an irregular power source, a capacitor connected to the power source for storing charge from the power source, and a control circuit which is operable to detect a charge current of a battery to be charged and to discharge the charge from the capacitor into the battery when the charge in the capacitor reaches a predetermined level. The control circuit is configured to change the predetermined level from a bulk charge mode to a float charge mode when the charge current is at or below a threshold value.Type: ApplicationFiled: April 2, 2012Publication date: October 4, 2012Inventors: Julian Coleman, Patrick McDougall, Matthew Bucknall
-
Publication number: 20110078934Abstract: A display assembly includes a first display element which displays letters, numbers, and/or images when power is applied to it and which continues to display the letters, numbers and/or images after the power is no longer applied to it; and a second display element which only operates whilst power is applied to it. The first display element may be a cholesteric panel or a bistable nematic panel, or may use e-ink technology to display letters, numbers and/or images. The second display element may comprise one or more light sources such as LEDs.Type: ApplicationFiled: October 4, 2010Publication date: April 7, 2011Applicant: NEXUS ALPHA LIMITEDInventors: Patrick McDougall, Julian Coleman
-
Patent number: D653291Type: GrantFiled: May 10, 2011Date of Patent: January 31, 2012Assignee: Nexus Alpha LimitedInventors: Patrick McDougall, Julian Coleman
-
Patent number: D654116Type: GrantFiled: April 29, 2010Date of Patent: February 14, 2012Assignee: Nexus Alpha LimitedInventors: Patrick McDougall, Julian Coleman