Calvin R Blankenship from 18118 Branching Oak Ct, Richmond, TX 77407, age 57

Us Patents

Automated System For Positioning And Supporting The Work Platform Of A Mobile Workover And Well-Servicing Rig
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US Patent:

7293607, Nov 13, 2007
Filed:

Jul 13, 2005
Appl. No.:

11/180254
Inventors:

Jeff A. Lambert - Conroe TX, US
James C. Garrett - Kingwood TX, US
Kenneth L. Cambern - Pampa TX, US
Joel M. Ferland - Pampa TX, US
Jay D. Furnish - Pampa TX, US
Donald W. Johnson - Pampa TX, US
Michael R. Zemanek - Pampa TX, US
James R. Cirone - Pampa TX, US
Calvin Blankenship - Lindsay OK, US
Assignee:

National-Oilwell, L.P. - Houston TX
International Classification:

E21B 19/00
US Classification:

166 7511, 166 851, 414540
Abstract:

A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.

Automated System For Positioning And Supporting The Work Platform Of A Mobile Workover And Well-Servicing Rig
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US Patent:

7546869, Jun 16, 2009
Filed:

Nov 12, 2007
Appl. No.:

11/938676
Inventors:

Jeff A. Lambert - Conroe TX, US
James C. Garrett - Kingwood TX, US
Kenneth L. Cambern - Pampa TX, US
Joel M. Ferland - Pampa TX, US
Jay D. Furnish - Pampa TX, US
Donald W. Johnson - Pampa TX, US
Michael R. Zemanek - Pampa TX, US
James R. Cirone - Pampa TX, US
Calvin Blankenship - Lindsay OK, US
Assignee:

National-Oilwell, L.P. - Houston TX
International Classification:

E21B 19/00
US Classification:

166 7511, 166 851, 414540
Abstract:

A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.

Automated System For Positioning And Supporting The Work Platform Of A Mobile Workover And Well-Servicing Rig
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US Patent:

8006751, Aug 30, 2011
Filed:

Oct 8, 2007
Appl. No.:

11/973491
Inventors:

Jeff A. Lambert - Conroe TX, US
James C. Garrett - Kingwood TX, US
Kenneth L. Cambern - Pampa TX, US
Joel M. Ferland - Pampa TX, US
Jay D. Furnish - Pampa TX, US
Donald W. Johnson - Pampa TX, US
Michael R. Zemanek - Pampa TX, US
James R. Cirone - Pampa TX, US
Calvin R. Blankenship - Lindsay OK, US
Assignee:

National-Oilwell, L.P. - Houston TX
International Classification:

E21B 19/00
US Classification:

166 7511, 166 851, 414540
Abstract:

A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated “pinning” system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.

Guidance Systems And Apparatus For Power Swivel
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US Patent:

20200308911, Oct 1, 2020
Filed:

Nov 21, 2016
Appl. No.:

15/777872
Inventors:

- Houston TX, US
Henry Do - Katy TX, US
Robert Ioan Papp - Houston TX, US
Mihail Puscas - Rosenberg TX, US
Calvin Ronald Blankenship - Katy TX, US
Delfino Moreno, III - El Campo TX, US
James Cirone - Pampa TX, US
Assignee:

National Oilwell Varco, L.P. - Houston TX
International Classification:

E21B 3/025
E21B 15/00
E21B 7/02
E21B 19/16
Abstract:

A system for drilling a subterranean borehole. In an embodiment, the system includes a mast, and a pipe rotator coupled to the mast. The pipe rotator includes a stem that is configured to be coupled to an end of a drillstring and a motor that is configured to rotate the stem. In addition, the system includes a guide beam coupled to the mast. The guide beam includes a longitudinal axis and is configured to guide vertical motion of the pipe rotator. The guide beam includes a plurality of elongate sections configured to be generally aligned along the longitudinal axis. In addition, the guide beam includes a plurality of coupling assemblies configured to interconnect the plurality of elongate sections and align the plurality elongate sections along the longitudinal axis.

Power Swivel And Gooseneck
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US Patent:

20200248513, Aug 6, 2020
Filed:

Oct 21, 2016
Appl. No.:

15/769921
Inventors:

- Houston TX, US
Henry Do - Katy TX, US
Robert Ioan Papp - Houston TX, US
Mihail Puscas - Rosenberg TX, US
Calvin Ronald Blankenship - Katy TX, US
Assignee:

National Oilwell Varco, L.P. - Houston TX
International Classification:

E21B 21/01
E21B 21/08
Abstract:

A gooseneck () and a power swivel () including a gooseneck () are disclosed. In an embodiment, the gooseneck includes an inlet section () including an inlet () and a first fluid flow path () extending from the inlet. In addition, the gooseneck includes an outlet section () coupled to the inlet section. The outlet section includes an outlet (). In addition, the outlet section () includes a second fluid flow path () extending axially from the outlet. The second fluid flow path is in fluid communication with the first fluid flow path. Further, the outlet section includes a radially outer surface (c) that includes a first polygonal section having a plurality of planar surfaces () joined at a plurality of corners ().

Power Swivel And Lubrication System
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US Patent:

20180313154, Nov 1, 2018
Filed:

Oct 19, 2016
Appl. No.:

15/770441
Inventors:

- Houston TX, US
Henry Do - Katy TX, US
Robert Ioan Papp - Houston TX, US
Mihail Puscas - Rosenberg TX, US
Calvin Ronald Blankenship - Katy TX, US
Assignee:

National Oilwell Varco, L.P. - Houston TX
International Classification:

E21B 3/04
F16H 57/04
F16H 57/12
Abstract:

A power swivel is disclosed that is configured to rotate tubular string and drill bit to form or extend a subterranean borehole. In an embodiment, the power swivel includes a motor, a gear box coupled to the motor, and a lubrication system coupled to the gear box. The lubrication system includes a pump disposed within the gear box, the pump including an outlet. In addition, the lubrication system includes a recirculation line fluidly coupled to the outlet of the pump. Further, the lubrication system includes a first injector fluidly coupled to the recirculation line. The injector is configured to deliver lubricant to one of a bearing and a gear disposed within the gear box.

Washpipe Assemblies For A Power Swivel
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US Patent:

20170321807, Nov 9, 2017
Filed:

May 4, 2017
Appl. No.:

15/586509
Inventors:

- Houston TX, US
Henry Do - Katy TX, US
Robert Ioan Papp - Houston TX, US
Mihail Puscas - Rosenberg TX, US
Calvin Ronald Blankenship - Katy TX, US
Assignee:

National Oilwell Varco, L.P. - Houston TX
International Classification:

F16J 15/3284
E21B 21/00
E21B 3/02
Abstract:

A washpipe assembly for a power swivel and a power swivel incorporating the washpipe assembly. In an embodiment, the washpipe assembly includes a washpipe including a central axis and a radially outermost cylindrical surface. In addition, the washpipe assembly includes a first packing assembly configured to be coupled to a stem of the power swivel. The first packing assembly includes a seal assembly that includes one or more annular seal members each including a body and a contact insert mounted to the body, the contact insert engaging and forming a dynamic seal with the radially outermost cylindrical surface of the washpipe.