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公开(公告)号：WO2011008691A1
公开(公告)日：2011-01-20
申请号：PCT/US2010/041700
申请日：2010-07-12
IPC分类号： B07B1/28
CPC分类号： B07B1/48 , B07B1/28 , B07B1/4609 , B07B1/4618 , B07B1/4645 , B07B1/485 , B07B1/49 , B07B2201/02 , Y10T29/49908
摘要： 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.
摘要翻译： 筛选机包括壁构件，筛组件引导构件，筛组件和压缩组件。 屏幕组件包括具有多个侧构件的框架和由框架支撑的屏幕。 压缩组件附接到至少一个壁构件并将屏幕组件形成为凹形。
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公开(公告)号：WO2006049927A3
公开(公告)日：2006-05-11
申请号：PCT/US2005/038158
申请日：2005-10-25
摘要： Disclosed within are methods and apparatus for screening a slurry, in which the slurry is vibrated and conveyed across a screen and suction is applied from below the screen. Air, particles and liquid are drawn through openings in the screen and may be conveyed to a separator, where the particles and liquid are then separated from the air.
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公开(公告)号：WO2023009214A1
公开(公告)日：2023-02-02
申请号：PCT/US2022/031997
申请日：2022-06-02
申请人： DERRICK CORPORATION
摘要： Disclosed embodiments include a removable support structure for a vibratory screening machine. The removable support structure is a single structure including one or more of plastic, metal, and composite materials and may be configured to provide mechanical support to one or more screening assemblies of the vibratory screening machine. The removable support structure may further be configured to be removably fastened to the vibratory screening machine. The removable support structure may be a single thermoplastic injection molded piece or may be a single injection molded piece that includes nylon, carbon, and graphite. The removable support structure may have a concave shape that is configured to mechanically support a screening assembly held under compression or may have a convex shape that is configured to mechanically support a screening assembly held under tension. A disclosed wear protective covering, made of a flexible material, provides wear protection to the removable support structure.
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公开(公告)号：WO2021257662A1
公开(公告)日：2021-12-23
申请号：PCT/US2021/037568
申请日：2021-06-16
申请人： DERRICK CORPORATION
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.
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公开(公告)号：WO2020072932A2
公开(公告)日：2020-04-09
申请号：PCT/US2019/054743
申请日：2019-10-04
申请人： DERRICK CORPORATION
摘要： Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be formed of a single injection molded piece integrally formed by injection molding one of a polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across the exterior of the grid frame, which reduces blinding and is resistant to wear and tear.
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公开(公告)号：WO2019125515A1
公开(公告)日：2019-06-27
申请号：PCT/US2018/040998
申请日：2018-07-06
发明人： WOJCIECHOWSKI, Keith
CPC分类号： B07B1/4609 , B01D29/01 , B07B1/4618 , B07B1/4645 , B07B1/469
摘要： Screening members (16), screening assemblies (10), 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 (11) 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.
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公开(公告)号：WO2019046571A1
公开(公告)日：2019-03-07
申请号：PCT/US2018/048836
申请日：2018-08-30
发明人： LIPA, Anthony J.
IPC分类号： B07B1/54
摘要： Deblinding apparatuses and deblinding methods are provided. A deblinding apparatus may include a support frame (120) including a grid structure (130) and multiple compartments (124). Multiple scattering members (134a, 134b) may be disposed within a compartment. Scattering members be removably affixed to a portion of the grid structure that forms a part of a compartment. Multiple unsecured objects (138) may be placed within a compartment. When attached to a screen and in response to movement of support frame (120), at least one unsecured object of the multiple unsecured objects (138) may collide with a first scattering member (134a, 134b) and with a surface of the screen to thereby cause deblinding of the screen. Sizes, shapes, masses, and morphologies of unsecured objects (138) may be designed to optimize collision rates of unsecured objects with scattering members (134a, 134b) and with the screen assembly (120).
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公开(公告)号：WO2018226878A1
公开(公告)日：2018-12-13
申请号：PCT/US2018/036330
申请日：2018-06-06
摘要： Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame (1510) having a plurality of openings (1513) arranged in a lattice and a plurality of screening cartridge assemblies (1610a,1610b, 1610c) affixed to the grid frame (1510) to cover the respective openings (1513) of the grid frame (1510). The screening cartridge assembly (1610a, 1610b, 1610c) includes a case (1630a) and a screen assembly (1640a, 1640b) fitted into the case (1630a), and may be affixed to a set of transversal member (1512) of the grid frame (1510). The case (1630a) may be an injection molded thermoplastic polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across an exterior portion of the grid frame (1510).
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公开(公告)号：WO2018201043A3
公开(公告)日：2018-11-01
申请号：PCT/US2018/029944
申请日：2018-04-27
申请人： DERRICK CORPORATION
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.
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公开(公告)号：WO2016148993A1
公开(公告)日：2016-09-22
申请号：PCT/US2016/021474
申请日：2016-03-09
申请人： DERRICK CORPORATION
CPC分类号： B07B1/4609 , B07B1/4618 , B07B1/4645 , B07B1/4681 , B07B1/48
摘要： A molded polyurethane vibratory screen (10) including a body (12) having opposite side edge portions (14, 16), upper and lower edge portions (18, 20), an upper surface (22) and a lower surface (24), first members (101) extending between the side edge portions (14, 16) and second members (102) extending between the lower edge portion (18) and the upper edge portion (20), third members (203) substantially parallel and extending transversely between the side edge portions (14, 16) and having multiple first members (101) therebetween, fourth members (204) substantially parallel and extending transversely between the lower edge portion (18) and the upper edge portion (20) and having multiple second members (102) therebetween, reinforcement members (50) molded integrally with the third and fourth members (203, 204).
摘要翻译： 一种模制聚氨酯振动筛（10），包括具有相对侧边缘部分（14,16），上下边缘部分（18,20），上表面（22）和下表面（24）的主体（12） 在侧缘部分（14,16）之间延伸的第一构件（101）和在下边缘部分（18）和上边缘部分（20）之间延伸的第二构件（102），基本上平行并横向延伸的第三构件 在所述侧边缘部分（14,16）之间具有多个第一部件（101），所述第四部件（204）在所述下边缘部分（18）和所述上边缘部分（20）之间大致平行并横向延伸并且具有多个第二部分 其间的构件（102），与第三和第四构件（203,204）一体模制的加强构件（50）。
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