Patents Assigned to Derrick Corporation
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Patent number: 9914153Abstract: 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: May 6, 2016Date of Patent: March 13, 2018Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9908150Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.Type: GrantFiled: June 29, 2016Date of Patent: March 6, 2018Assignee: Derrick CorporationInventors: Anythony J Lipa, James R Colgrove
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Patent number: 9884344Abstract: 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: July 5, 2016Date of Patent: February 6, 2018Assignee: Derrick CorporationInventor: Keith F. Wojciechowski
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Patent number: 9884345Abstract: 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: May 19, 2016Date of Patent: February 6, 2018Assignee: Derrick CorporationInventors: Keith Wojcieshowski, Christian Newman
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Publication number: 20170312785Abstract: 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: ApplicationFiled: July 5, 2016Publication date: November 2, 2017Applicant: Derrick CorporationInventor: Keith F. Wojciechowski
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Patent number: 9718008Abstract: 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: March 12, 2014Date of Patent: August 1, 2017Assignee: Derrick CorporationInventors: Mike Peresan, James Colgrove
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Publication number: 20160310994Abstract: 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: ApplicationFiled: July 5, 2016Publication date: October 27, 2016Applicant: Derrick CorporationInventor: Keith F. Wojciechowski
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Publication number: 20160303611Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.Type: ApplicationFiled: June 29, 2016Publication date: October 20, 2016Applicant: Derrick CorporationInventors: Anythony J Lipa, James R. Colgrove
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Publication number: 20160263621Abstract: 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: ApplicationFiled: May 19, 2016Publication date: September 15, 2016Applicant: DERRICK CORPORATIONInventors: Keith Wojcieshowski, Christian Newman
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Publication number: 20160250662Abstract: 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: ApplicationFiled: May 6, 2016Publication date: September 1, 2016Applicant: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9409209Abstract: 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: May 2, 2014Date of Patent: August 9, 2016Assignee: Derrick CorporationInventor: Keith F. Wojciechowski
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Patent number: 9403192Abstract: A molded polyurethane screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.Type: GrantFiled: March 19, 2015Date of Patent: August 2, 2016Assignee: Derrick CorporationInventors: Anthony J. Lipa, James R. Colgrove
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Patent number: 9375756Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.Type: GrantFiled: March 19, 2015Date of Patent: June 28, 2016Assignee: Derrick CorporationInventors: Anthony J. Lipa, James R. Colgrove
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Publication number: 20160175888Abstract: 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: ApplicationFiled: December 22, 2015Publication date: June 23, 2016Applicant: Derrick CorporationInventor: Christian T. Newman
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Patent number: 9370798Abstract: 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: February 10, 2015Date of Patent: June 21, 2016Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9370797Abstract: 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 23, 2014Date of Patent: June 21, 2016Assignee: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9346081Abstract: 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: February 10, 2015Date of Patent: May 24, 2016Assignee: DERRICK CORPORATIONInventors: Keith Wojciechowski, Christian Newman
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Patent number: 9283572Abstract: A centrifuge including a bowl, a bowl drive motor, a screw conveyor, a screw conveyor drive motor, a pump, a pump motor, a bowl VFD to drive the bowl drive motor, a conveyor VFD to drive the screw conveyor drive motor, a pump VFD to drive the pump drive motor, an analysis assembly and a computer electrically connected to the bowl VFD, the conveyor VFD, the pump VFD, and the analysis assembly. The analysis assembly is configured to automatically sample slurry pumped into the bowl and automatically transmit data, characterizing the slurry, to the computer. The computer is configured to calculate control schemes for the bowl VFD, the conveyor VFD, and the pump VFD using the data and, transmit control signals to the bowl VFD, the conveyor VFD and the pump VFD to operate the bowl VFD, the conveyor VFD and the pump VFD according to the control schemes.Type: GrantFiled: September 8, 2014Date of Patent: March 15, 2016Assignee: Derrick CorporationInventors: Bradley T. Derrick, Michael J. Schwec
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Patent number: 9259763Abstract: A screen assembly for a vibratory screening machine is provided including a plate having perforations with edges that are neither perpendicular nor parallel to wires of a wire mesh of the screen assembly.Type: GrantFiled: July 10, 2013Date of Patent: February 16, 2016Assignee: Derrick CorporationInventor: John J. Bakula
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Publication number: 20160030980Abstract: 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: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Applicant: Derrick CorporationInventors: Keith Wojciechowski, Christian Newman