Patents by Inventor David L. Schulte
David L. Schulte 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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Publication number: 20100181265Abstract: A screen assembly for a vibratory separator, the screen assembly vertically-mountable and further including a support, at least two screening faces on the support, said at least two screening faces each including screening material through which fluid is flowable from outside the screen assembly into a space within the screen assembly and interiorly of the at least two screening faces, and the support including an exit from which fluid may exit from within the screen assembly; shakers with at least one such screen assembly; and methods of using such a screen assembly in a vibratory separator. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).Type: ApplicationFiled: January 20, 2009Publication date: July 22, 2010Inventors: David L. Schulte, JR., Paul Dufilho, Thomas Larson
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Publication number: 20090145816Abstract: Screen assemblies for vibratory separators and shale shakers, the screen assemblies in certain aspects having screening material with a protector on an outer periphery of the screening material; and methods of making such screen assemblies. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).Type: ApplicationFiled: December 11, 2007Publication date: June 11, 2009Inventors: Paul William Dufilho, David L. Schulte, JR.
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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: 7063214Abstract: Interconnectible screen assemblies for vibratory separators or shale shakers and methods for manipulating such screen assemblies which, in certain aspects, include a first screen assembly and a second screen assembly positioning at least a portion of the first screen assembly with respect to screen assembly holding apparatus, connecting a second screen assembly to the first screen assembly, and moving the first screen assembly and the second screen assembly together with respect to the screen assembly holding apparatus.Type: GrantFiled: February 4, 2003Date of Patent: June 20, 2006Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Jr., 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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Patent number: 7000777Abstract: Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies.Type: GrantFiled: July 7, 2003Date of Patent: February 21, 2006Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, David L. Schulte, Jr., Kenneth W. Seyffert, David Wayne Laragent, Guy L. McClung, III
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Patent number: 6932883Abstract: 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: GrantFiled: July 31, 2002Date of Patent: August 23, 2005Assignee: Varco I/P, Inc.Inventors: Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David L. Schulte, Jr., Charles N. Gricher, Vincent D. Leone, Jefrey E. Walker, Guy L. McClung, III
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Patent number: 6892888Abstract: A unibody structure for a screen assembly for a vibratory separator, the unibody structure, in certain aspects having an integral body member with a portion having a plurality of spaced-apart openings in a pattern of a plurality of spaced-apart screening openings and including a pair of spaced-apart integral side members made of folded portions that form the pair of spaced-apart integral side members, a pair of spaced-apart integral end members made of folded end portions, the pair of spaced-apart integral end members each with a first end member and a second end member, the first end member configured with a shoulder support portion for sealingly abutting a screen ledge end of an adjacent screen, and the second end member configured with a ledge portion for sealingly abutting a shoulder portion of an end of an adjacent screen, and the plurality of spaced-apart openings of the integral body member defined by a plurality of spaced-apart strips, each adjacent pair of the plurality of spaced-apart strips defininType: GrantFiled: July 24, 2002Date of Patent: May 17, 2005Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Jr., Thomas C. Adams, Kenneth W. Seyffert, Guy L. McClung, III
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Patent number: 6863183Abstract: A shale shaker for separating material, said shale shaker comprising a basket (100) for supporting a screen assembly and a collection receptacle, the basket comprising two side walls (102), an end wall (103) and an opening in the bottom of said basket (100), said basket (100) having means (109,110) to support screen assemblies for substantially covering said opening characterized in that said basket (100) further comprises separating means (104,105,106)in or on any of said walls (102,103) for separating material. Preferably, further comprising directing means for directing separated material therefrom into said collection receptacle. The invention also provides a method for separating material using the shale shaker of the invention, a basket of the shale shaker of the invention and screen assemblies used in the shale shaker of the invention.Type: GrantFiled: October 19, 2001Date of Patent: March 8, 2005Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Charles N. Gridhar
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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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Publication number: 20040238414Abstract: A shale shaker for separating material, said shale shaker comprising a basket (100) for supporting a screen assembly and a collection receptacle, the basket comprising two side walls (102), an end wall (103) and an opening in the bottom of said basket (100), said basket (100) having means (109,110) to support screen assemblies for substantially covering said opening characterised in that said basket (100) further comprises separating means (104,105,106)in or on any of said walls (102,103) for separating material. Preferably, further comprising directing means for directing separated material therefrom into said collection receptacle. The invention also provides a method for separating material using the shale shaker of the invention, a basket of the shale shaker of the invention and screen assemblies used in the shale shaker of the invention.Type: ApplicationFiled: September 16, 2002Publication date: December 2, 2004Inventors: David L. Schulte, Charles N. Gridhar
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Patent number: 6811032Abstract: A shale shaker or vibratory separator for treating material, e.g. in one aspect, a shale shaker for treating drilling fluid having contaminants therein, the shale shaker having a base, a basket on the base, fluid introduction apparatus for introducing the drilling fluid into the basket, screen apparatus for selectively providing screening material in or under the basket, the screening material positioned so that the drilling fluid flows onto the screening material, a primary roll of screening material, a take-up roll for receiving screening material from the primary roll, the rolls rotatably mounted so that screening material is movable, through or under the basket, and onto the take-up roll, vibratory apparatus connected to the basket for vibrating the basket, and receptacle apparatus for receiving fluid flowing through the screening material.Type: GrantFiled: January 16, 2003Date of Patent: November 2, 2004Assignee: Varco I/P, Inc.Inventors: David L. Schulte, Jr., Guy L. McClung, III
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Publication number: 20040149632Abstract: Interconnectible screen assemblies for vibratory separators or shale shakers and methods for manipulating such screen assemblies which, in certain aspects, include a first screen assembly and a second screen assembly positioning at least a portion of the first screen assembly with respect to screen assembly holding apparatus, connecting a second screen assembly to the first screen assembly, and moving the first screen assembly and the second screen assembly together with respect to the screen assembly holding apparatus.Type: ApplicationFiled: February 4, 2003Publication date: August 5, 2004Inventors: David L. Schulte, Guy L. McClung
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Publication number: 20040140249Abstract: A shale shaker or vibratory separator for treating material, e.g. in one aspect, a shale shaker for treating drilling fluid having contaminants therein, the shale shaker having a base, a basket on the base, fluid introduction apparatus for introducing the drilling fluid into the basket, screen apparatus for selectively providing screening material in or under the basket, the screening material positioned so that the drilling fluid flows onto the screening material, a primary roll of screening material, a take-up roll for receiving screening material from the primary roll, the rolls rotatably mounted so that screening material is movable, through or under the basket, and onto the take-up roll, vibratory apparatus connected to the basket for vibrating the basket, and receptacle apparatus for receiving fluid flowing through the screening material.Type: ApplicationFiled: January 16, 2003Publication date: July 22, 2004Inventors: David L. Schulte, Guy L. McClung
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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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Publication number: 20040074817Abstract: Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies.Type: ApplicationFiled: July 7, 2003Publication date: April 22, 2004Inventors: Thomas C. Adams, David L. Schulte, Kenneth W. Seyffert, David Wayne Laragent, Guy L. McClung