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公开(公告)号：US11000882B2
公开(公告)日：2021-05-11
申请号：US16743626
申请日：2020-01-15
申请人： Derrick Corporation
发明人： Keith Wojciechowski
摘要： 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.
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公开(公告)号：US20200156116A1
公开(公告)日：2020-05-21
申请号：US16743626
申请日：2020-01-15
申请人： Derrick Corporation
发明人： Keith Wojciechowski
摘要： 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.
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公开(公告)号：US20200156115A1
公开(公告)日：2020-05-21
申请号：US16743516
申请日：2020-01-15
申请人： Derrick Corporation
发明人： Keith Wojciechowski
摘要： 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.
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公开(公告)号：US20190321856A1
公开(公告)日：2019-10-24
申请号：US16503331
申请日：2019-07-03
申请人： Derrick Corporation
摘要： A vibratory screening machine includes a primary screening area and a pre-screening assembly including a frame and screen assemblies. The screen assemblies are secured to the frame and form a pre-screening surface. The frame is attached to the vibratory screening machine such that the concave pre-screening surface is above the primary screening area.
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公开(公告)号：US10363577B2
公开(公告)日：2019-07-30
申请号：US15873582
申请日：2018-01-17
申请人： Derrick Corporation
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.
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公开(公告)号：US20180312667A1
公开(公告)日：2018-11-01
申请号：US15965363
申请日：2018-04-27
申请人： Derrick Corporation
IPC分类号： C08K7/14 , C08K5/134 , C08K5/20 , C08G18/10 , C08G18/76 , B01D21/28 , B29B7/90 , B29C45/00 , B29C45/40
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：US09956591B2
公开(公告)日：2018-05-01
申请号：US14882211
申请日：2015-10-13
申请人： Derrick Corporation
CPC分类号： B07B1/485 , B07B1/28 , B07B1/4609 , B07B1/4618 , B07B1/4672 , B07B1/48 , B07B1/49
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.
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公开(公告)号：US09370798B2
公开(公告)日：2016-06-21
申请号：US14618121
申请日：2015-02-10
申请人： Derrick Corporation
CPC分类号： B07B1/48 , B07B1/28 , B07B1/4609 , B07B1/485 , B07B2201/02
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.
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公开(公告)号：US09144825B2
公开(公告)日：2015-09-29
申请号：US13653857
申请日：2012-10-17
申请人： Derrick Corporation
CPC分类号： B07B1/4645 , B07B1/28 , B07B1/4609 , B07B1/48 , B07B2201/02
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.
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公开(公告)号：US20150122707A9
公开(公告)日：2015-05-07
申请号：US13653857
申请日：2012-10-17
申请人： DERRICK CORPORATION
CPC分类号： B07B1/4645 , B07B1/28 , B07B1/4609 , B07B1/48 , B07B2201/02
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.
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