Patents by Inventor David A. Buck

David A. Buck 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: 20230064016
    Abstract: A lift-ready flowhead assembly which is generally formed of a flowhead assembly, a lifting yoke, and a lift sub. The flowhead assembly includes (i) a flowhead body having body threads and a side entry port, (ii) a swivel housing, (iii) a load collar tube rotatively supported in the swivel housing by a bearing assembly, and (iv) a ball valve positioned in said flowhead body and configured to block and unblock a central passage running through the load collar tube and the flowhead body. The lifting yoke includes (i) a yoke body having a center aperture, and (ii) opposing pad-eyes extending from the yoke body. The lift sub includes (i) a head section, (ii) a neck section having external neck threads, and (iii) a sub passage extending through the head and neck sections. The neck section of the lift sub extends through the center aperture of the yoke body and the neck threads engage the body threads of the flowhead body, thereby securing the lifting yoke to the flowhead assembly.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: David A. Buck, Andy Paul Todd, Jeffery Daigle, Brad Indest
  • Patent number: 11585447
    Abstract: A valve seat for a ball valve. The valve seat having a valve seat body with a circumferential concave seating surface configured to mate with a curvature of the valve ball. A seal pocket formed within the valve seat body, the seal pocket having (i) an throat formed in the concave seating surface, (ii) an outer pocket sidewall, and (iii) an inner pocket sidewall. A retaining groove positioned below the throat on either the outer pocket sidewall or the inner pocket sidewall and a flexible seal element shaped for positioning in the seal pocket. The seal element includes (i) an extended lip configured to rest within the retaining groove when the seal element is seated in the seal pocket, and (ii) a sealing face with an upper end laying below the valve seat's concave seating surface and a mid-portion extending upward above a curvature path of the concave seating surface.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: February 21, 2023
    Assignee: M & M Oil Tools, LLC
    Inventors: David A. Buck, Andy Paul Todd, Sythonh Sysavath, Jon David Hurst
  • Publication number: 20210341064
    Abstract: A valve seat for a ball valve. The valve seat having a valve seat body with a circumferential concave seating surface configured to mate with a curvature of the valve ball. A seal pocket formed within the valve seat body, the seal pocket having (i) an throat formed in the concave seating surface, (ii) an outer pocket sidewall, and (iii) an inner pocket sidewall. A retaining groove positioned below the throat on either the outer pocket sidewall or the inner pocket sidewall and a flexible seal element shaped for positioning in the seal pocket. The seal element includes (i) an extended lip configured to rest within the retaining groove when the seal element is seated in the seal pocket, and (ii) a sealing face with an upper end laying below the valve seat's concave seating surface and a mid-portion extending upward above a curvature path of the concave seating surface.
    Type: Application
    Filed: June 16, 2021
    Publication date: November 4, 2021
    Inventors: David A. Buck, Andy Paul Todd, Sythonh Sysavath, Jon David Hurst
  • Patent number: 11137077
    Abstract: A method of actuating a valve which includes (i) a valve housing with two opposing stem apertures including a first diameter neck wall and a second, larger diameter shoulder wall; (ii) a valve stem positioned within each of the stem apertures, the valve stems including a neck section and a shoulder section engaging the neck wall and the shoulder wall, respectively; (iii) wherein the valve stems have (1) an overall length L which does not extend substantially beyond the stem aperture, and (2) a shoulder engagement length L2 which is at least 20% of L; (iv) wherein a diameter of the neck section is between about 1.5/1000 if an inch and about 7/1000 of an inch less than a diameter of the first diameter neck wall and a diameter of the shoulder section is between about 1.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 5, 2021
    Inventor: David A. Buck
  • Patent number: 11047488
    Abstract: A valve seat for a ball valve. The valve seat having a valve seat body with a circumferential concave seating surface configured to mate with a curvature of the valve ball. A seal pocket formed within the valve seat body, the seal pocket having (i) an throat formed in the concave seating surface, (ii) an outer pocket sidewall, and (iii) an inner pocket sidewall. A retaining groove positioned below the throat on either the outer pocket sidewall or the inner pocket sidewall and a flexible seal element shaped for positioning in the seal pocket. The seal element includes (i) an extended lip configured to rest within the retaining groove when the seal element is seated in the seal pocket, and (ii) a sealing face with an upper end laying below the valve seat's concave seating surface and a mid-portion extending upward above a curvature path of the concave seating surface.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 29, 2021
    Assignee: M & M Oil Tools, LLC
    Inventors: David A. Buck, Andy Paul Todd, Sythonh Sysavath, Jon David Hurst
  • Patent number: 10815737
    Abstract: A tool joint clamp which includes a clamp assembly and a stop ring. The clamp assembly has at least two die carriers, with each die carrier having a translating and pivoting link between the die carriers such that the die carriers may move toward and away from a centerline of the clamp assembly. The stop ring includes a ring body having a central aperture forming an internal sidewall, with at least a portion of the internal sidewall having splines. A cam surface and cam follower are positioned between the clamp assembly and the stop ring, with the cam surface and cam follower configured to urge the die carriers toward the clamp assembly's centerline when relative torque is applied between the clamp assembly and the stop ring.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: October 27, 2020
    Assignee: M & M Oil Tools, LLC
    Inventors: David A. Buck, Andy Paul Todd
  • Patent number: 10502022
    Abstract: In the specification and drawings a flowhead assembly is described and shown with a flow adapter positioned within a through bore of the flowhead assembly housing; a first ball valve and second ball valve located above the flow adapter; a spacer assembly positioned between the first and second ball valve; at least one side flow entry attachment fluidly connected with the through bore of the flowhead assembly. The sideflow entry attachment includes a first and second ball valve located in a central passage in the sideflow entry attachment housing, with a spacer assembly positioned between them; a flow guide insert is positioned above the ball valves and includes a flow path that is in fluid communication with the through bore of the flowhead assembly; a plug retains the flow guide insert within the central passage. Also described and shown is a frac head assembly including a flow adapter that has chamfered internal surfaces surrounding side entry apertures.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: December 10, 2019
    Assignee: M & M Oil Tools, LLC
    Inventors: David A. Buck, Andy Paul Todd
  • Publication number: 20190178392
    Abstract: A valve seat for a ball valve. The valve seat having a valve seat body with a circumferential concave seating surface configured to mate with a curvature of the valve ball. A seal pocket formed within the valve seat body, the seal pocket having (i) an throat formed in the concave seating surface, (ii) an outer pocket sidewall, and (iii) an inner pocket sidewall. A retaining groove positioned below the throat on either the outer pocket sidewall or the inner pocket sidewall and a flexible seal element shaped for positioning in the seal pocket. The seal element includes (i) an extended lip configured to rest within the retaining groove when the seal element is seated in the seal pocket, and (ii) a sealing face with an upper end laying below the valve seat's concave seating surface and a mid-portion extending upward above a curvature path of the concave seating surface.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 13, 2019
    Inventors: David A. Buck, Andy Paul Todd, Sythonh Sysavath, Jon David Hurst
  • Publication number: 20180283562
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventor: David A. Buck
  • Patent number: 9551425
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: January 24, 2017
    Inventor: David A. Buck
  • Patent number: 9488033
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: November 8, 2016
    Inventor: David A. Buck
  • Publication number: 20150283409
    Abstract: A hybrid self-contained breathing apparatus having an oxygen augmentation system for delivering oxygen to a stream of monitored ambient air.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 8, 2015
    Applicant: C&B Technology LLC
    Inventor: David A. Buck
  • Publication number: 20150233478
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Application
    Filed: May 5, 2015
    Publication date: August 20, 2015
    Inventor: David A. Buck
  • Patent number: 8998173
    Abstract: In the specification and drawings a valve is described and shown with a lower valve seat; an upper valve seat; a bracket, the bracket having a first tongue engaged with the upper valve seat; a valve ball located between the lower valve seat and the upper valve seat, the lower valve seat, the valve ball, and the upper valve seat being located within the bracket; and a ring located about the upper valve seat, the ring having a first recessed portion and a first extended portion, the ring having a first ring position in which the first tongue is unobstructed by the first recessed portion and a second ring position in which the first tongue is obstructed by the first extended portion, the ring being rotatable between the first ring position and the second ring position.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: April 7, 2015
    Inventor: David A. Buck
  • Publication number: 20150090917
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 2, 2015
    Inventor: David A. Buck
  • Publication number: 20140306140
    Abstract: In the specification and drawings, a valve is described and shown having a first and second valve seat carrier, a valve seat associated with each valve seat carrier, and a valve ball between the valve seats. The valve further includes a stop mechanism operatively connected to at least a first valve seat, the stop mechanism limiting travel of the first valve seat towards the valve ball such that the valve ball may be push away from a sealing engagement with the first valve seat.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 16, 2014
    Inventor: David A. Buck
  • Publication number: 20140306139
    Abstract: In the specification and drawings a valve is described and shown with a lower valve seat; an upper valve seat; a bracket, the bracket having a first tongue engaged with the upper valve seat; a valve ball located between the lower valve seat and the upper valve seat, the lower valve seat, the valve ball, and the upper valve seat being located within the bracket; and a ring located about the upper valve seat, the ring having a first recessed portion and a first extended portion, the ring having a first ring position in which the first tongue is unobstructed by the first recessed portion and a second ring position in which the first tongue is obstructed by the first extended portion, the ring being rotatable between the first ring position and the second ring position.
    Type: Application
    Filed: August 6, 2013
    Publication date: October 16, 2014
    Inventor: David A. Buck
  • Publication number: 20140306138
    Abstract: In the specification and drawings a valve is described and shown with a lower valve seat; an upper valve seat; a bracket, the bracket having a first tongue engaged with the upper valve seat; a valve ball located between the lower valve seat and the upper valve seat, the lower valve seat, the valve ball, and the upper valve seat being located within the bracket; and a ring located about the upper valve seat, the ring having a first recessed portion and a first extended portion, the ring having a first ring position in which the first tongue is unobstructed by the first recessed portion and a second ring position in which the first tongue is obstructed by the first extended portion, the ring being rotatable between the first ring position and the second ring position.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 16, 2014
    Inventor: David A. Buck
  • Publication number: 20140190483
    Abstract: A self-contained respiratory protection system is disclosed. The system includes a center module attachable to one or more cylinders of air, gas or oxygen. A plurality of filters is mountable on the center module. A blower motor also may be mounted on the center module. A hose attaches to a cylinder to provide air to an operator or draws filtered air via the filters on the center module. A first stage regulator converts the air in the cylinder to breathable air for the operator. A second stage regulator transitions between filter mode and supplied air. The system may fit within a backpack.
    Type: Application
    Filed: May 12, 2011
    Publication date: July 10, 2014
    Applicant: CRITICAL SYSTEMS INNOVATIONS, INC.
    Inventors: Mark A. Hansen, David A. Buck
  • Patent number: 8215196
    Abstract: A power tong having a ring gear, a gear train, a motor and a gear shift mechanism. The gear shift mechanism further includes a linear actuator and a shift arm connect to the linear actuator. A drive gear is positioned on a drive shaft extending from the motor and this drive gear includes an upper and lower set of drive teeth having beveled top portions. The shift arm engages the drive gear between the upper and lower set of drive teeth and movement of the linear actuator causes the drive gear to engage one of at least two gears in the gear train.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: July 10, 2012
    Assignee: McCoy Corporation
    Inventors: David A. Buck, Mark Gravouia