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51 条记录 (耗时 0.023 秒)

    Injection molded screening apparatuses and methods
    1.
    发明授权
    Injection molded screening apparatuses and methods 有权

    公开(公告)号：US11638933B2

    公开(公告)日：2023-05-02

    申请号：US17389070

    申请日：2021-07-29

    申请人： DERRICK CORPORATION

    发明人： Keith Wojciechowski ,  James R. Colgrove ,  Kurt Stodolka ,  Anthony Lipa ,  Alex DeMay

    IPC分类号： B07B1/46 ,  B01D29/01 ,  B29D28/00 ,  B29C65/16 ,  B29C45/00 ,  B29K75/00 ,  B07B1/48

    摘要： 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.

    Thermoplastic compositions, methods, apparatus, and uses
    2.
    发明授权
    Thermoplastic compositions, methods, apparatus, and uses 有权

    公开(公告)号：US11505638B2

    公开(公告)日：2022-11-22

    申请号：US16904819

    申请日：2020-06-18

    申请人： DERRICK CORPORATION

    发明人： James R. Colgrove ,  Keith Wojciechowski ,  Alex DeMay

    IPC分类号： B29D28/00 ,  B01D1/00 ,  C08G18/10 ,  C08G18/32 ,  C08G18/42 ,  B07B1/46 ,  B29B9/14 ,  B01D39/16 ,  B29B7/90 ,  B07B1/00 ,  C08K3/40 ,  C08K5/00 ,  C08K7/14

    摘要： Thermoplastic polyurethane (TPU) compositions, methods for producing TPU compositions, methods of using TPU compositions, and apparatuses produced therefrom are disclosed. Disclosed TPU compositions include a thermoplastic polyurethane polymer, a heat stabilizer, a flow agent, and a filler material. The filler may be a glass fiber. Disclosed TPU compositions have improved thermal stability and improved flow properties suitable for injection molding of articles of manufacture having a large plurality of fine openings or pores. Articles produced from the composition have superior thermal stability, abrasion resistance, and chemical resistance. Example articles include screening members for vibratory screening machines. Further embodiments include compositions without heat stabilizers, flow agents, and filler materials, and compositions in which two TPU materials having different harnesses are combined to generate a material with a pre-determined hardness. Injection molded screen elements having openings from 25 to 150 microns and open screening area from 10% to 35% are disclosed.

    METHOD AND APPARATUSES FOR SCREENING
    3.
    发明申请
    METHOD AND APPARATUSES FOR SCREENING 有权

    公开(公告)号：US20220088639A1

    公开(公告)日：2022-03-24

    申请号：US17542959

    申请日：2021-12-06

    申请人： Derrick Corporation

    发明人： James R. Colgrove ,  Clifford C. Smith

    IPC分类号： B07B1/18 ,  B07B1/46 ,  B01D33/03 ,  B01D33/74 ,  B29C45/00 ,  B29D28/00 ,  B01D29/05 ,  B01D29/19 ,  B01D29/21 ,  B01D29/90 ,  B01D29/92 ,  B01D39/16

    摘要： Embodiments of the present disclosure include a screen basket apparatus includes a substantially vertical cylindrical frame and a synthetic screening surface secured to the frame. The synthetic screening surface may be configured to separate carbon or resin from a slurry of a carbon-in-leach, carbon-in-pulp, resin-in-leach, or resin-in-pulp material as fluid flows from outside to inside the screen basket apparatus such that carbon or resin is retained on an external surface of the synthetic screening surface. The cylindrical frame may be a grid frame and the synthetic screening surface may include a plurality of replaceable screen assemblies attached to the grid frame. The grid frame may include a plurality of openings and each of the plurality of openings is configured to receive a respective one of the plurality of replaceable screen assemblies. The synthetic screening surface may include injected molded thermoplastics, thermoset polyurethanes, and/or other polymeric materials.

    Apparatuses, methods, and systems for vibratory screening
    5.
    发明授权
    Apparatuses, methods, and systems for vibratory screening 有权

    公开(公告)号：US10773278B2

    公开(公告)日：2020-09-15

    申请号：US16513963

    申请日：2019-07-17

    申请人： Derrick Corporation

    发明人： James R. Colgrove ,  Michael L. Peresan

    IPC分类号： B07B1/36 ,  B07B1/28 ,  B07B1/46 ,  B07B13/16 ,  B07B1/48

    摘要： 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.

    APPARATUSES, METHODS, AND SYSTEMS FOR VIBRATORY SCREENING
    6.
    发明申请
    APPARATUSES, METHODS, AND SYSTEMS FOR VIBRATORY SCREENING 审中-公开

    公开(公告)号：US20190337019A1

    公开(公告)日：2019-11-07

    申请号：US16513963

    申请日：2019-07-17

    申请人： Derrick Corporation

    发明人： James R. Colgrove ,  Michael L. Peresan

    IPC分类号： B07B1/36 ,  B07B13/16 ,  B07B1/46 ,  B07B1/48 ,  B07B1/28

    摘要： 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.

    Apparatuses, methods, and systems for vibratory screening
    7.
    发明授权
    Apparatuses, methods, and systems for vibratory screening 有权

    公开(公告)号：US10399124B2

    公开(公告)日：2019-09-03

    申请号：US15785141

    申请日：2017-10-16

    申请人： Derrick Corporation

    发明人： James R. Colgrove ,  Michael L. Peresan

    IPC分类号： B07B1/28 ,  B07B1/36 ,  B07B1/46 ,  B07B1/48 ,  B07B13/16

    摘要： 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.

    METHODS AND SYSTEMS OF METAL SORPTION USING INTERSTAGE SCREENING
    8.
    发明申请
    METHODS AND SYSTEMS OF METAL SORPTION USING INTERSTAGE SCREENING 审中-公开
    使用隔离屏幕进行金属吸附的方法和系统

    公开(公告)号：US20150197827A1

    公开(公告)日：2015-07-16

    申请号：US14596016

    申请日：2015-01-13

    申请人： Derrick Corporation

    发明人： David E. Perkins ,  Christian T. Newman ,  James R. Colgrove

    IPC分类号： C22B3/24 ,  B01D15/02 ,  B01D33/03 ,  C22B3/00

    CPC分类号： C22B3/24 ,  B01D15/02 ,  B01D33/03 ,  C22B3/02 ,  C22B11/04 ,  Y02P10/234

    摘要： Embodiments of the present invention include systems and methods that include a sorption vessel containing a pulp including an aqueous slurry and a sorbent, a screening system at least partially submerged within the pulp and including a housing and a vibratory screening machine including a compression assembly and a screen assembly. The aqueous slurry includes a metal that is adsorbed by the sorbent to form an oversized material in the pulp. The compression assembly compresses the screen assembly into a concave shape and the screen assembly is inclined such that the pulp if fed over a first inclined portion of the screen assembly and the oversized materials are conveyed over a second inclined portion of the screen assembly and removed from the system or conveyed back into the sorption vessel. The undersized material passes through the screen assembly into a portion of the housing separate from the pulp and is discharged to another sorption vessel.

    摘要翻译： 本发明的实施方案包括系统和方法，其包括含有包含含水浆料和吸附剂的纸浆的吸附容器，至少部分浸没在纸浆内的筛选系统，并且包括壳体和振动筛分机，其包括压缩组件和 屏幕组装。 含水浆料包括被吸附剂吸附以在纸浆中形成超大材料的金属。 压缩组件将屏幕组件压缩成凹形，并且屏幕组件倾斜，使得如果将纸浆输送到屏幕组件的第一倾斜部分上并且将尺寸过大的材料输送到屏幕组件的第二倾斜部分上并从屏幕组件中移除 该系统或输送回吸附容器。 尺寸过小的材料通过筛网组件进入与纸浆分离的壳体的一部分并被排出到另一个吸附容器。