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公开(公告)号：US6080216A
公开(公告)日：2000-06-27
申请号：US64491
申请日：1998-04-22
Applicant: Dwight D. Erickson
Inventor： Dwight D. Erickson
CPC classification number: B24D11/001 , B24D3/06 , B24D3/14 , B24D3/20 , C09K3/1409 , C09K3/1418 , Y10T428/2991 , Y10T428/2993
Abstract: Alumina-based abrasive material having at least an internal layer is provided. Preferably, the abrasive material results from co-extrusion of at least two different sols. In some preferred processing, steps to provide multiple internal layers are conducted.
Abstract translation: 提供至少具有内层的基于氧化铝的研磨材料。 优选地，研磨材料由至少两种不同溶胶的共挤出产生。 在一些优选的处理中，进行提供多个内层的步骤。
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公开(公告)号：US5531976A
公开(公告)日：1996-07-02
申请号：US392610
申请日：1995-02-22
Applicant: Lewis B. Decker, Jr. , Dwight D. Erickson , David A. Barclay
Inventor： Lewis B. Decker, Jr. , Dwight D. Erickson , David A. Barclay
CPC classification number: C01F7/021 , B01J13/00 , C01P2006/13 , C01P2006/14 , C01P2006/16 , C01P2006/17
Abstract: A process for making high porosity boehmite alumina comprising forming an aqueous dispersion of a boehmite alumina which has been obtained by hydrothermally treating an aqueous mixture of a precursor boehmite alumina at a pH of from about 5 to about 9 for a period of time sufficient to convert the greater portion of the precursor boehmite alumina to a colloidal sol, treating the dispersion of the hydrothermally treated alumina to form a viscous gel and subjecting the gel to sufficient shearing force for a sufficient period of time to increase the pore volume by at least 30% and the median pore radius by at least 20%.
Abstract translation: 一种制备高孔隙度勃姆石氧化铝的方法，包括形成勃姆石氧化铝的水性分散体，其通过在约5至约9的pH下水热处理前体勃姆石氧化铝的水性混合物达一个足以转化的时间 将前体勃姆石氧化铝的较大部分加入到胶体溶胶中，处理水热处理的氧化铝的分散体以形成粘性凝胶，并使凝胶充分的剪切力足够长的时间以将孔体积增加至少30％ 中值孔半径至少为20％。
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公开(公告)号：US5489318A
公开(公告)日：1996-02-06
申请号：US240608
申请日：1994-05-10
Applicant: Dwight D. Erickson , William P. Wood
Inventor： Dwight D. Erickson , William P. Wood
CPC classification number: B24D3/14 , C04B35/111 , C09K3/1409
Abstract: Alumina-based abrasive grain comprising rare earth oxide and calcium oxide and/or strontium oxide, and a method of making the same. The abrasive grain is useful in abrasive articles, such as coated abrasives, three-dimensional, low density abrasives, and bonded abrasives.
Abstract translation: 包含稀土氧化物和氧化钙和/或氧化锶的基于氧化铝的磨料颗粒及其制备方法。 磨料颗粒可用于磨料制品，如涂层磨料，三维，低密度磨料和粘结磨料。
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24.发明授权Laser method for making shaped ceramic abrasive particles, shaped ceramic abrasive particles, and abrasive articles 有权用于制造成形陶瓷磨粒，成形陶瓷磨粒和磨料制品的激光方法公开(公告)号：US09073179B2
公开(公告)日：2015-07-07
申请号：US13881601
申请日：2011-10-21
Applicant: Dennis G. Welygan , Charles J. Studiner, IV , Dwight D. Erickson , Edward J. Woo , Pingfan Wu
Inventor： Dennis G. Welygan , Charles J. Studiner, IV , Dwight D. Erickson , Edward J. Woo , Pingfan Wu
IPC: B24D3/00 , B24D11/00 , B24D18/00 , B24D3/02 , C09K3/14 , C09C1/68 , B23K26/38 , B23K26/40 , C04B35/111 , B23K26/06 , B23K26/08
CPC classification number: C09K3/1418 , B01J2/26 , B23K26/0624 , B23K26/082 , B23K26/0821 , B23K26/0838 , B23K26/0846 , B23K26/38 , B23K26/40 , B23K2103/52 , B24D3/02 , C04B35/1115 , C04B2235/52 , C04B2235/6025 , C04B2235/612 , C04B2235/94 , C09K3/1409
Abstract: A method of making shaped ceramic abrasive particles includes cutting a layer of ceramic precursor material using a laser beam and forming shaped ceramic precursor particles. Further thermal processing provides shaped ceramic abrasive particles. Shaped ceramic abrasive particles producible by the methods and abrasive articles containing them are also disclosed.
Abstract translation: 制造成形陶瓷磨粒的方法包括使用激光束切割陶瓷前体材料层并形成成形陶瓷前体颗粒。 进一步的热处理提供成形陶瓷磨粒。 还公开了通过所述方法可生产的成型陶瓷磨粒和含有它们的磨料制品。
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公开(公告)号：US09039797B2
公开(公告)日：2015-05-26
申请号：US13818365
申请日：2011-10-19
Applicant: Dwight D. Erickson
Inventor： Dwight D. Erickson
CPC classification number: C09K3/1418 , B24D3/008
Abstract: A method of making shaped abrasive particles including forming an abrasive flake comprising a plurality of precursor shaped abrasive particles and a frangible support joining the precursor shaped abrasive particles together; transporting the abrasive flake through a rotary kiln to sinter the abrasive flake; and breaking the sintered abrasive flake into individual shaped abrasive particles. The method is useful to make small shaped abrasive particles having insufficient mass to be efficiently individually sintered in a rotary kiln without joining two or more of the shaped abrasive particles together.
Abstract translation: 一种制造成形磨料颗粒的方法，包括形成包括多个前体成形磨料颗粒的研磨片和将前体成形磨料颗粒接合在一起的易碎支承体; 通过回转窑输送研磨片以烧结研磨片; 并将烧结的磨料碎片破碎成单独的成形磨料颗粒。 该方法可用于使不具有质量的小型磨料颗粒在回转窑中有效地单独烧结而不将两种或多种成形磨料颗粒接合在一起。
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Patent Agency Ranking
公开(公告)号：US20120137597A1
公开(公告)日：2012-06-07
申请号：US13397049
申请日：2012-02-15
Applicant: Negus B. Adefris , Dwight D. Erickson , Scott R. Culler , John T. Boden , John D. Haas
Inventor： Negus B. Adefris , Dwight D. Erickson , Scott R. Culler , John T. Boden , John D. Haas
CPC classification number: B24D11/001 , C09K3/1409 , Y10T428/24364 , Y10T428/257 , Y10T428/2982
Abstract: Abrasive particles comprising shaped abrasive particles each having a sloping sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a thickness, t. The shaped abrasive particles further comprising a draft angle α between the second face and the sloping sidewall, and the draft angle α is between about 95 degrees to about 125 degrees.
Abstract translation: 研磨颗粒包括各自具有倾斜侧壁的成形磨料颗粒，每个成形磨料颗粒包含α氧化铝，并具有第一面和第二面以及厚度t分开。 成形磨料颗粒还包括第二面和倾斜侧壁之间的拔模角α，并且拔模角α在约95度至约125度之间。
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公开(公告)号：US08142532B2
公开(公告)日：2012-03-27
申请号：US12337112
申请日：2008-12-17
Applicant: Dwight D. Erickson , Scott R. Culler , Negus B. Adefris , John T. Boden , John D. Haas
Inventor： Dwight D. Erickson , Scott R. Culler , Negus B. Adefris , John T. Boden , John D. Haas
CPC classification number: C09K3/1418 , C09K3/1409 , Y10T428/24364 , Y10T428/24413 , Y10T428/257 , Y10T428/2982
Abstract: Abrasive particles which are shaped abrasive particles each with an opening is disclosed. The shaped abrasive particles are formed from alpha alumina and have a first face and a second face separated by a thickness t. The opening in each of the shaped abrasive particles can improve grinding performance by reducing the size of a resulting wear flat, can provide a reservoir for grinding aid, and can improve adhesion to a backing in a coated abrasive article.
Abstract translation: 公开了具有各自具有开口的成形磨料颗粒的磨粒。 成形的磨料颗粒由α氧化铝形成，并具有分开厚度t的第一面和第二面。 每个成形磨料颗粒中的开口可以通过减小所得磨损平面的尺寸来提高研磨性能，可以提供用于研磨助剂的储存器，并且可以提高对涂覆的磨料制品中的背衬的粘合性。
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28.发明授权Method of making abrasive shards, shaped abrasive particles with an opening, or dish-shaped abrasive particles 有权制造磨料碎片的方法，具有开口的成形磨料颗粒或碟形磨料颗粒公开(公告)号：US08123828B2
公开(公告)日：2012-02-28
申请号：US12337001
申请日：2008-12-17
Applicant: Scott R. Culler , Dwight D. Erickson , Negus B. Adefris , John T. Boden , John D. Haas
Inventor： Scott R. Culler , Dwight D. Erickson , Negus B. Adefris , John T. Boden , John D. Haas
CPC classification number: B24D3/00 , B01J2/22 , C09K3/1409
Abstract: By controlling the process parameters and by using a polymeric production tooling having a plurality of mold cavities, different types of shaped abrasive particles selected from the group consisting of abrasive shards, dish-shaped abrasive particles, and shaped abrasive particles with an opening can be produced from the exact same mold. In one embodiment, the mold comprised a plurality of equilateral triangles and fractured precursor abrasive particles, dish-shaped precursor abrasive particles, or precursor shaped abrasive particles with an opening were produced from the same mold.
Abstract translation: 通过控制工艺参数和通过使用具有多个模具腔的聚合物生产模具，可以生产选自磨料碎片，碟形磨料颗粒和具有开口的成形磨料颗粒组成的组中的不同类型的成形磨料颗粒 从完全相同的模具。 在一个实施例中，模具包括多个等边三角形和断裂的前体磨料颗粒，碟形前体磨料颗粒或具有开口的前体成形磨料颗粒由同一模具制成。
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29.发明申请SHAPED, FRACTURED ABRASIVE PARTICLE, ABRASIVE ARTICLE USING SAME AND METHOD OF MAKING 审中-公开形状，破碎的磨料颗粒，使用它的磨料制品和制造方法公开(公告)号：US20110314746A1
公开(公告)日：2011-12-29
申请号：US13227924
申请日：2011-09-08
Applicant: Dwight D. Erickson , Scott R. Culler , Negus B. Adefris , John T. Boden , John D. Haas
Inventor： Dwight D. Erickson , Scott R. Culler , Negus B. Adefris , John T. Boden , John D. Haas
CPC classification number: B24D3/00 , B01J2/22 , C09K3/1409 , Y10T428/24364 , Y10T428/24413 , Y10T428/2982
Abstract: Precursor alpha alumina abrasive particles in a mold are subjected to a drying process that cracks or fractures at least a majority of the precursor abrasive particles into at least two pieces thereby producing abrasive shards having a smaller size than the mold cavity from which they were made. The smaller abrasive shards, once formed, could be reassembled like jigsaw puzzle pieces to reproduce the original cavity shape of the mold from which they were made. The cracking or fracturing of the precursor abrasive particles is believed to occur by ensuring that the surface tension of the abrasive dispersion to the walls of the mold is greater than the internal attractive forces of the abrasive dispersion as the abrasive dispersion is dried within the mold cavity.
Abstract translation: 将模具中的前体α氧化铝磨料颗粒进行干燥处理，使至少大部分前体研磨剂颗粒破裂或破裂成至少两个，从而产生具有比其制造的模具腔更小的尺寸的磨料碎片。 一旦形成的较小的磨料碎片可以像拼图拼图一样重新组装，以再现其制造的模具的原始腔体形状。 认为前体研磨剂颗粒的破裂或断裂是通过确保研磨分散体在模具腔内干燥的情况下，研磨分散体对模具壁的表面张力大于磨料分散体的内吸力而发生的 。
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30.发明授权公开(公告)号：US06228134B1
公开(公告)日：2001-05-08
申请号：US09064493
申请日：1998-04-22
Applicant: Dwight D. Erickson
Inventor： Dwight D. Erickson
IPC: C09C168
CPC classification number: B24D3/14 , B24D18/0054 , B28B3/2636 , C09K3/1436 , Y10T428/2929 , Y10T428/2938
Abstract: Alumina-based abrasive material having at least an internal core structure is provided. Preferably, the abrasive material results from co-extrusion of at least two different sols. In some preferred processing, steps to provide multiple internal core structures are conducted.
Abstract translation: 提供了至少具有内部核心结构的基于氧化铝的研磨材料。 优选地，研磨材料由至少两种不同溶胶的共挤出产生。 在一些优选的处理中，进行提供多个内部核心结构的步骤。
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