Patents by Inventor Charles N. Grichar
Charles N. Grichar 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).
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Patent number: 7520391Abstract: A mount for a screen assembly, a screen assembly with such a mount, and a vibratory separator (e.g., a shale shaker) with such a screen assembly; the mount in certain aspects including a body with an inwardly projecting handle apparatus accessible when the screen assembly with such a mount is located in operation position on a mount structure of a vibratory separator.Type: GrantFiled: June 6, 2007Date of Patent: April 21, 2009Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Jr., Thomas C. Adams, Kerry Ward, Kenneth Wayne Seyffert, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, David W. Largent, Guy L. McClung, III
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Patent number: 7216767Abstract: A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having first ends and second ends, the first ends spaced-apart by spaced-apart end walls connected to each of the side walls, a basket bottom between the two spaced-apart side walls, at least one screen assembly positioned vertically in the basket for interceptions material introduced into the basket and for screening said material, and the at least one screen assembly extending from one side wall of the basket to the other.Type: GrantFiled: March 3, 2005Date of Patent: May 15, 2007Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Charles N. Grichar, Guy L. McClung, III
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Patent number: 7198156Abstract: A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the basket, and at least one dam within the basket for intercepting material introduced into the basket, and for forming a relatively deep pool of material over one or more of the screen assemblies.Type: GrantFiled: July 12, 2005Date of Patent: April 3, 2007Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Charles N. Grichar, Richard J. Koch, Guy L. McClung, III
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Patent number: 7000776Abstract: Screen assemblies for a vibratory separator and methods of using them, the screen assemblies in one aspect including a first screen portion having a first end and a second end spaced apart from the first end, a second screen portion adjacent the second end of the first screen portion, the second screen portion projecting down from the second end of the first screen portion.Type: GrantFiled: June 3, 2003Date of Patent: February 21, 2006Assignee: Varco I/P, Inc.Inventors: Joseph C. Winkler, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Jr., Charles N. Grichar, Guy L. McClung, III
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Publication number: 20040251175Abstract: Screen assemblies for a vibratory separator, and methods for making them, the method in one aspect including: applying glue in a glue pattern to at least one layer of screening material useful for screening fluid, said applying done by powered moving mechanical glue application apparatus; moving at least one glue dispensing manifold with a plurality of spaced-apart glue dispensing nozzles above the at least one layer of screening material to apply the glue pattern; combining the at least one layer of screening material to a second layer forming a screen combination; moving the screen combination apart from the powered moving mechanical glue application apparatus; and cutting part of the screen combination from the screen combination.Type: ApplicationFiled: January 28, 2004Publication date: December 16, 2004Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David L. Schulte, David W. Largent, Charles N. Grichar, Guy L. McClung
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Patent number: 6769550Abstract: A shale shaker system for separating components of drilling fluid with solids entrained therein, the shale shaker system, in at least certain aspects, including a base, a screen mounting basket on the base, vibrating apparatus connected to the screen mounting basket for vibrating the screen mounting basket, the screen mounting basket having mounting structure for at least one screen assembly mounted on the mounting structure, the mounting structure having a body over which the at least one screen assembly is positionable, some components of the drilling fluid to be treated by the shale shaker flowable through the at least one screen assembly and through the body, at least one wear strip attached to the mounting structure, the at least one wear strip having a wear strip body, at least one upwardly projecting member projecting upwardly from the wear strip body, the at least one screen assembly including a screen support with screening material and at least one hole in the support sized, configured, and locatedType: GrantFiled: January 23, 2002Date of Patent: August 3, 2004Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, Haynes Smith, James Adams, Charles N. Grichar, Kerry Ward, George Alexander Burnett, Kenneth W. Seyffert, Guy L. McClung, III
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Publication number: 20040112522Abstract: Methods for making frames for screen assemblies for vibratory separators, and screen assemblies with such frames, the methods, in certain aspects, including making a frame support for a screen assembly for a vibratory separator (e.g. but not limited to with robotic welding apparatus), moving the frame support to cleaning apparatus to clean the frame support, heating the frame support, moving the heated frame support to coating apparatus, coating the frame support in the coating apparatus with protective material, allowing the coated frame support to cool so that the protective material sets, moving of the frame support in one aspect done by mechanical movement apparatus; and, in certain aspects, adding screening material to the frame to produce a screen assembly.Type: ApplicationFiled: August 27, 2003Publication date: June 17, 2004Inventors: Kerry T. Ward, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Vincent D. Leone, Jeffrey E. Walker, Charles N. Grichar, Guy L. McClung
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Publication number: 20040099578Abstract: Screen assemblies for a vibratory separator and methods of using them, the screen assemblies in one aspect including a first screen portion having a first end and a second end spaced apart from the first end, a second screen portion adjacent the second end of the first screen portion, the second screen portion projecting down from the second end of the first screen portion.Type: ApplicationFiled: June 3, 2003Publication date: May 27, 2004Inventors: Joseph C. Winkler, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Charles N. Grichar, Guy L. McClung
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Patent number: 6736270Abstract: Screens and screen assemblies for a vibratory separator or shale shaker, such screens and screen assemblies made by a method including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it.Type: GrantFiled: October 19, 2001Date of Patent: May 18, 2004Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David L. Schulte, Jr., Charles N. Grichar, Vincent D. Leone, Jefrey E. Walker, Guy L. McClung, III
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Patent number: 6715611Abstract: A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator in one particular aspect being a shale shaker, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is introduced into the basket and a second end spaced-apart from the first end, components separated from the material exiting the basket from the second end, vibrating apparatus connected to the basket for vibrating the basket, screening apparatus mounted in the basket, the screening apparatus having at least a first portion and a second portion, the first portion at the first end of the screen and the first portion lower in the basket than the second portion, receptacle apparatus below the screening apparatus for receiving material components flowing through the screening apparatus, maintenance apparatus for maintaining height of a portion of the screening apparatus, and a pool of the mateType: GrantFiled: May 10, 2002Date of Patent: April 6, 2004Assignee: Tuboscope I/P, Inc.Inventors: Mark Crabbe, David L. Schulte, Charles N. Grichar
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Publication number: 20040007508Abstract: A screen assembly for a vibratory separator, the screen assembly including screening material with opposed spaced-apart sides including a first side and a second side, a side mount on each of the opposed spaced-apart sides, each side of the opposed spaced-apart sides having an edge portion, and each edge portion held within a side mount; a vibratory separator with such a screen assembly; and methods of their use.Type: ApplicationFiled: May 2, 2003Publication date: January 15, 2004Inventors: David L. Schulte, Thomas C. Adams, Kerry T. Ward, Kenneth W. Seyffert, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, David Wayne Largent, Guy L. McClung
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Patent number: 6669985Abstract: Methods for making screen assemblies and screens for a vibratory separator or shale shaker, such methods including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it.Type: GrantFiled: October 19, 2001Date of Patent: December 30, 2003Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David L. Schulte, Jr., Charles N. Grichar, Vincent D. Leone, Jefrey E. Walker, Guy L. McClung, III
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Patent number: 6607080Abstract: A screen assembly for a vibratory separator, the screen assembly having a first screen portion having a first end and a second end spaced apart from the first end, and a second screen portion formed integrally of or connected to the second end of the second screen portion. A screen assembly with a first portion of screening material and a second raised portion of screening material, the second raised portion extending from a material introduction end of the screen assembly to a material exit end thereof, the raised portion, in one aspect, culminating in an apex above the first portion of screening material.Type: GrantFiled: March 28, 2001Date of Patent: August 19, 2003Assignee: Varco I/P, Inc.Inventors: Joseph Charles Winkler, Thomas C. Adams, David L. Schulte, Kenneth W. Seyffert, David W. Largent, Charles N. Grichar, Guy L. McClung, III
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Publication number: 20030136710Abstract: A shale shaker system for separating components of drilling fluid with solids entrained therein, the shale shaker system, in at least certain aspects, including a base, a screen mounting basket on the base, vibrating apparatus connected to the screen mounting basket for vibrating the screen mounting basket, the screen mounting basket having mounting structure for at least one screen assembly mounted on the mounting structure, the mounting structure having a body over which the at least one screen assembly is positionable, some components of the drilling fluid to be treated by the shale shaker flowable through the at least one screen assembly and through the body, at least one wear strip attached to the mounting structure, the at least one wear strip having a wear strip body, at least one upwardly projecting member projecting upwardly from the wear strip body, the at least one screen assembly including a screen support with screening material and at least one hole in the support sized, configured, and locatedType: ApplicationFiled: January 23, 2002Publication date: July 24, 2003Inventors: Thomas C. Adams, Haynes Smith, James Adams, Charles N. Grichar, Kerry Ward, George Alexander Burnett, Kenneth W. Seyffert, Guy L. McClung
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Patent number: 6565698Abstract: A method for making a screen assembly for a vibratory separator, which, in certain aspects, includes placing a first layer of screening material below a glue application apparatus, and applying with the glue apparatus an amount of glue in a pattern to a portion of the first layer of screening material, unrolling part of a second layer from a second roll and positioning the part of the second layer adjacent part of the first layer to which glue has been applied, moving the part of the second layer and the part of the first layer between opposed rotatable spaced-apart rollers to press together the part of the second layer and the part of the first layer to form a pressed-together layer of first and second layers of screening material. In certain aspects hot glue is used and is cooled following application of the second layer on the first layer.Type: GrantFiled: March 2, 2000Date of Patent: May 20, 2003Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, Kenneth W. Seyffert, David W. Largent, David L. Schulte, Jr., Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, Guy L. McClung, III
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Publication number: 20030042179Abstract: Methods for making a screen assembly for a vibratory separator, a screen assembly made by such methods, and a method for separating components of a fluid with a vibratory separator with such a scren assembly; the method in certain aspects including sewing together with sewing material at least two layers of screening material (e.g., two, three, four or more layers; e.Type: ApplicationFiled: September 5, 2002Publication date: March 6, 2003Inventors: Thomas C. Adams, Kerry T. Ward, David L. Schulte, Kenneth W. Seyffert, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, Guy L. McClung
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Publication number: 20030010437Abstract: A method for making a screen assembly for a vibratory separator, the method including, in at least certain aspects, gluing together with glue at least two layers of fine screening material, allowing the glue to set, preheating the glued together at least two layers of fine screening material, placing the thus-preheated at least two layers of fine screening material in a heating apparatus, placing a coarse mesh layer on the at least two layers of screening material on the heating apparatus, placing on the coarse mesh layer a support with heat activated material thereon for adhering the support to the coarse mesh layer, and heating the coarse mesh layer, at least two fine layers of fine screening material, and the support to adhere the support to the coarse mesh layer and to glue the at least two layers of fine screening material to the coarse mesh layer.Type: ApplicationFiled: July 31, 2002Publication date: January 16, 2003Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David L. Schulte, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, Guy L. McClung
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Publication number: 20020175111Abstract: A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator in one particular aspect being a shale shaker, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is introduced into the basket and a second end spaced-apart from the first end, components separated from the material exiting the basket from the second end, vibrating apparatus connected to the basket for vibrating the basket, screening apparatus mounted in the basket, the screening apparatus having at least a first portion and a second portion, the first portion at the first end of the screen and the first portion lower in the basket than the second portion, receptacle apparatus below the screening apparatus for receiving material components flowing through the screening apparatus, maintenance apparatus for maintaining height of a portion of the screening apparatus, and a pool of the mateType: ApplicationFiled: May 10, 2002Publication date: November 28, 2002Inventors: Mark Crabbe, David L. Schulte, Charles N. Grichar
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Publication number: 20020168469Abstract: Methods for making screen assemblies and screens for a vibratory separator or shale shaker, such methods including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it.Type: ApplicationFiled: October 19, 2001Publication date: November 14, 2002Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David L. Schulte, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, Guy L. McClung
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Patent number: 6454099Abstract: A screen assembly for a vibratory separator has been invented, which, in certain aspects, has a ridge-valley series of undulating screening material with a plurality of alternating ridges and valleys of screening material, each of said ridges having two spaced-apart ridge ends, a ridge top and a ridge bottom, and each ridge end with a portion of screening material that tapers down from its corresponding ridge's ridge top to a level of screening material at its corresponding ridge's ridge bottom.Type: GrantFiled: August 5, 2000Date of Patent: September 24, 2002Assignee: Varco I/P, IncInventors: Thomas C. Adams, David L. Schulte, Kenneth W. Seyffert, David W. Largent, Charles N. Grichar, Guy L. McClung, III