Patents by Inventor James Colgrove
James Colgrove 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: 20250058355Abstract: Static screening apparatuses that provide improved efficiency in the removal of undersized particles from oversized particles. In an embodiment, a static screening apparatus incorporates two or more (e.g., multiple) stacked screening modules allowing for adding additional screening capacity without significantly increasing space requirements for the multiple screening apparatuses. In some embodiments, a static screening apparatus utilizes specialized synthetic screening surfaces having an increased open area in relation to convention wire and wedge wire screens. The increased open area of such synthetic screen surfaces provides more efficient separation of oversized materials from undersized materials in sieve or static screen assemblies. In further embodiments, a stacked static screening apparatus may incorporate synthetic screening surfaces.Type: ApplicationFiled: October 24, 2024Publication date: February 20, 2025Inventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
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Patent number: 12226802Abstract: Static screening apparatuses that provide improved efficiency in the removal of undersized particles from oversized particles. In an embodiment, a static screening apparatus incorporates two or more (e.g., multiple) stacked screening modules allowing for adding additional screening capacity without significantly increasing space requirements for the multiple screening apparatuses. In some embodiments, a static screening apparatus utilizes specialized synthetic screening surfaces having an increased open area in relation to convention wire and wedge wire screens. The increased open area of such synthetic screen surfaces provides more efficient separation of oversized materials from undersized materials in sieve or static screen assemblies. In further embodiments, a stacked static screening apparatus may incorporate synthetic screening surfaces.Type: GrantFiled: May 29, 2024Date of Patent: February 18, 2025Assignee: Derrick CorporationInventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
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Publication number: 20240399420Abstract: Static screening apparatuses that provide improved efficiency in the removal of undersized particles from oversized particles. In an embodiment, a static screening apparatus incorporates two or more (e.g., multiple) stacked screening modules allowing for adding additional screening capacity without significantly increasing space requirements for the multiple screening apparatuses. In some embodiments, a static screening apparatus utilizes specialized synthetic screening surfaces having an increased open area in relation to convention wire and wedge wire screens. The increased open area of such synthetic screen surfaces provides more efficient separation of oversized materials from undersized materials in sieve or static screen assemblies. In further embodiments, a stacked static screening apparatus may incorporate synthetic screening surfaces.Type: ApplicationFiled: May 29, 2024Publication date: December 5, 2024Inventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
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Patent number: 11185802Abstract: 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: September 11, 2019Date of Patent: November 30, 2021Assignee: DERRICK CORPORATIONInventors: Mike Peresan, James Colgrove
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Patent number: 11161150Abstract: A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.Type: GrantFiled: April 1, 2020Date of Patent: November 2, 2021Assignee: DERRICK CORPORATIONInventors: Keith Wojciechowski, James Colgrove
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Publication number: 20200001213Abstract: 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: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Inventors: Mike Peresan, James Colgrove
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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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Publication number: 20170291195Abstract: 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: ApplicationFiled: June 26, 2017Publication date: October 12, 2017Inventors: Mike Peresan, James Colgrove
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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: 20140263103Abstract: 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: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Applicant: Derrick CorporationInventors: Mike Peresan, James Colgrove
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Patent number: 8584866Abstract: 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: April 19, 2010Date of Patent: November 19, 2013Assignee: Derrick CorporationInventors: Anthony Lipa, James Colgrove
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Publication number: 20110253602Abstract: 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: April 19, 2010Publication date: October 20, 2011Applicant: Derrick CorporationInventors: Anthony Lipa, James Colgrove
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Publication number: 20050072896Abstract: Disclosed within is a fist bracket comprising a base and a circumferential portion extending from the base in which the circumferential portion comprises an outer surface and an inner surface and the outer surface comprises a curved section and a planar section. Also disclosed within is a combination of a motor mount bracket and fist bracket comprising a fist bracket with a base and a circumferential portion extending from the base. The circumferential portion includes an outer surface and an inner surface and the outer surface comprises a curved section and a planar section. The combination further includes a bushing disposed within the circumferential portion of the fist bracket.Type: ApplicationFiled: November 29, 2004Publication date: April 7, 2005Applicant: Derrick CorporationInventors: James Colgrove, Anthony Lipa
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Publication number: 20050056571Abstract: A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a lip, and a second end on the frame with a clip thereon. Another embodiment has a first end with a ledge and a second end with an overhanging portion, and a seal on the ledge.Type: ApplicationFiled: November 5, 2003Publication date: March 17, 2005Applicant: Derrick Manufacturing CorporationInventors: James Colgrove, Gregory Kardach
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Publication number: 20050056570Abstract: A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a depending lip, and a second end on the frame with a clip thereon. Another embodiment has a first end with a ledge and a second end with an overhanging portion, and a seal on the ledge.Type: ApplicationFiled: August 29, 2003Publication date: March 17, 2005Inventors: James Colgrove, Gregory Kardach