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).

  • Publication number: 20250058355
    Abstract: 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: Application
    Filed: October 24, 2024
    Publication date: February 20, 2025
    Inventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
  • Patent number: 12226802
    Abstract: 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: Grant
    Filed: May 29, 2024
    Date of Patent: February 18, 2025
    Assignee: Derrick Corporation
    Inventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
  • Publication number: 20240399420
    Abstract: 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: Application
    Filed: May 29, 2024
    Publication date: December 5, 2024
    Inventors: James Colgrove, Zachery Walleshauser, Glenn Geles, Layne Collins
  • Patent number: 11185802
    Abstract: 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: Grant
    Filed: September 11, 2019
    Date of Patent: November 30, 2021
    Assignee: DERRICK CORPORATION
    Inventors: Mike Peresan, James Colgrove
  • Patent number: 11161150
    Abstract: 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: Grant
    Filed: April 1, 2020
    Date of Patent: November 2, 2021
    Assignee: DERRICK CORPORATION
    Inventors: Keith Wojciechowski, James Colgrove
  • Publication number: 20200001213
    Abstract: 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: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Inventors: Mike Peresan, James Colgrove
  • Patent number: 10434442
    Abstract: 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: Grant
    Filed: June 26, 2017
    Date of Patent: October 8, 2019
    Assignee: Derrick Corporation
    Inventors: Mike Peresan, James Colgrove
  • Publication number: 20170291195
    Abstract: 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: Application
    Filed: June 26, 2017
    Publication date: October 12, 2017
    Inventors: Mike Peresan, James Colgrove
  • Patent number: 9718008
    Abstract: 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: Grant
    Filed: March 12, 2014
    Date of Patent: August 1, 2017
    Assignee: Derrick Corporation
    Inventors: Mike Peresan, James Colgrove
  • Publication number: 20140263103
    Abstract: 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: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Derrick Corporation
    Inventors: Mike Peresan, James Colgrove
  • Patent number: 8584866
    Abstract: 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: Grant
    Filed: April 19, 2010
    Date of Patent: November 19, 2013
    Assignee: Derrick Corporation
    Inventors: Anthony Lipa, James Colgrove
  • Publication number: 20110253602
    Abstract: 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: Application
    Filed: April 19, 2010
    Publication date: October 20, 2011
    Applicant: Derrick Corporation
    Inventors: Anthony Lipa, James Colgrove
  • Publication number: 20050072896
    Abstract: 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: Application
    Filed: November 29, 2004
    Publication date: April 7, 2005
    Applicant: Derrick Corporation
    Inventors: James Colgrove, Anthony Lipa
  • Publication number: 20050056571
    Abstract: 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: Application
    Filed: November 5, 2003
    Publication date: March 17, 2005
    Applicant: Derrick Manufacturing Corporation
    Inventors: James Colgrove, Gregory Kardach
  • Publication number: 20050056570
    Abstract: 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: Application
    Filed: August 29, 2003
    Publication date: March 17, 2005
    Inventors: James Colgrove, Gregory Kardach