Patents Assigned to Derrick Corporation
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Patent number: 10967401Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: March 20, 2019Date of Patent: April 6, 2021Assignee: DERRICK CORPORATIONInventor: Keith F. Wojciechowski
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Patent number: 10960438Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: January 15, 2020Date of Patent: March 30, 2021Assignee: DERRICK CORPORATIONInventor: Keith Wojciechowski
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Patent number: 10933444Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: March 20, 2019Date of Patent: March 2, 2021Assignee: DERRICK CORPORATIONInventor: Keith F. Wojciechowski
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Patent number: 10843230Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: February 7, 2019Date of Patent: November 24, 2020Assignee: Derrick CorporationInventor: Keith Wojciechowski
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Patent number: 10835926Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: February 7, 2019Date of Patent: November 17, 2020Assignee: Derrick CorporationInventor: Keith Wojciechowski
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Patent number: 10773278Abstract: Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines can include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies can be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies can be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly can be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly can be configured to receive materials that pass over the screen assemblies.Type: GrantFiled: July 17, 2019Date of Patent: September 15, 2020Assignee: Derrick CorporationInventors: James R. Colgrove, Michael L. Peresan
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Patent number: 10603692Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.Type: GrantFiled: March 9, 2018Date of Patent: March 31, 2020Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 10576502Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: April 27, 2018Date of Patent: March 3, 2020Assignee: Derrick CorporationInventor: Keith Wojciechowski
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Patent number: 10512939Abstract: Embodiments of the present disclosure provide for systems, apparatuses, and methods of securing screen assemblies. Embodiments include a system having a compression assembly with a compression pin and a pin assembly having a pin. The compression assembly may be attached to a first wall member of a vibratory screening machine and the pin assembly may be attached to a second wall member of the vibratory screening machine opposite the first wall member such that the compression assembly is configured to assert a force against a first side portion of a screen assembly and drive a second side portion of the screen assembly against the pin of the pin assembly. The pin assembly may include a pin that is internally or externally mounted and that is adjustable and/or replaceable.Type: GrantFiled: April 15, 2018Date of Patent: December 24, 2019Assignee: Derrick CorporationInventor: Christian T. Newman
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Patent number: 10434442Abstract: An example nonlimiting embodiment of the present invention provides a flow divider that includes a slurry receiving compartment and a discharge arrangement having a plurality of discharge apertures. The slurry receiving compartment is arranged to relatively uniformly flow a portion of a slurry into each of the discharge apertures. The discharge apertures may be arranged linearly and/or horizontally such that the portions of the slurry exits each of the discharge apertures at a relatively even flow rate and feed feed boxes connected to vertically tiered screening surfaces of a screening machine.Type: GrantFiled: June 26, 2017Date of Patent: October 8, 2019Assignee: Derrick CorporationInventors: Mike Peresan, James Colgrove
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Patent number: 10399124Abstract: Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines can include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies can be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies can be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly can be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly can be configured to receive materials that pass over the screen assemblies.Type: GrantFiled: October 16, 2017Date of Patent: September 3, 2019Assignee: Derrick CorporationInventors: James R. Colgrove, Michael L. Peresan
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Patent number: 10363577Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.Type: GrantFiled: January 17, 2018Date of Patent: July 30, 2019Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 10350640Abstract: A vibratory screening machine includes a primary screening area and a pre-screening assembly including a frame and screen assemblies. The screen assemblies are secured to the frame and form a pre-screening surface. The frame is attached to the vibratory screening machine such that the concave pre-screening surface is above the primary screening area.Type: GrantFiled: April 10, 2013Date of Patent: July 16, 2019Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 10259013Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: December 21, 2017Date of Patent: April 16, 2019Assignee: Derrick CorporationInventor: Keith F. Wojciechowski
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Patent number: 10046363Abstract: Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.Type: GrantFiled: March 13, 2013Date of Patent: August 14, 2018Assignee: Derrick CorporationInventor: Keith F. Wojciechowski
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Patent number: 9956591Abstract: A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.Type: GrantFiled: October 13, 2015Date of Patent: May 1, 2018Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9956592Abstract: Embodiments of the present disclosure provide for systems, apparatuses, and methods of securing screen assemblies. Embodiments include a system having a compression assembly with a compression pin and a pin assembly having a pin. The compression assembly may be attached to a first wall member of a vibratory screening machine and the pin assembly may be attached to a second wall member of the vibratory screening machine opposite the first wall member such that the compression assembly is configured to assert a force against a first side portion of a screen assembly and drive a second side portion of the screen assembly against the pin of the pin assembly. The pin assembly may include a pin that is internally or externally mounted and that is adjustable and/or replaceable.Type: GrantFiled: December 22, 2015Date of Patent: May 1, 2018Assignee: Derrick CorporationInventor: Christian T. Newman
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Patent number: D854066Type: GrantFiled: April 15, 2018Date of Patent: July 16, 2019Assignee: Derrick CorporationInventors: James R. Colgrove, Michael L. Peresan
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Patent number: D890236Type: GrantFiled: February 7, 2019Date of Patent: July 14, 2020Assignee: Derrick CorporationInventors: James R. Colgrove, Michael L. Peresan
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Patent number: D915484Type: GrantFiled: November 30, 2018Date of Patent: April 6, 2021Assignee: DERRICK CORPORATIONInventors: James R. Colgrove, Clifford C. Smith