公开(公告)号：US06371225B1

公开(公告)日：2002-04-16

申请号：US09548867

申请日：2000-04-13

申请人： James L. Overstreet ,  Anil Kumar

发明人： James L. Overstreet ,  Anil Kumar

IPC分类号： E21B1050

CPC分类号： B24B1/00 ,  B22F2005/001 ,  B22F2998/00 ,  B24B21/004 ,  B24B21/02 ,  C23C30/005 ,  E21B10/52 ,  B22F7/062

摘要： A drill bit insert has a cylindrical barrel, a bevel on one end, an interface therebetween, and a cutting tip opposite the bevel. The bevel and interface contact the entrance to a hole in the drill bit and facilitate the transition of the barrel into the hole. A high quality surface finish on the bevel and interface enhance the durability and retention of the insert in the drill bit. The surface finish on the insert is produced by polishing it with a diamond lapping film. The insert is rotated between three rollers as the lapping film passes over its surface. One of the rollers and the film conform to the axial profile of the insert as each element rotates so that the interface, bevel, and barrel of the insert are simultaneously polished.

摘要翻译： 钻头刀片具有圆柱形筒，一端上的斜面，它们之间的界面以及与斜面相对的切割尖端。 斜面和界面将入口与钻头中的孔接触，并有助于将筒体过渡到孔中。 斜面和界面上的高质量表面光洁度增强了刀片在钻头中的耐久性和保持力。 刀片上的表面光洁度是通过用金刚石研磨膜抛光来生产的。 当研磨膜通过其表面时，插入件在三个辊之间旋转。 当每个元件旋转时，辊和膜中的一个与插入件的轴向轮廓一致，使得插入件的界面，斜面和圆筒同时被抛光。

公开(公告)号：US06348604B1

公开(公告)日：2002-02-19

申请号：US09656509

申请日：2000-09-06

申请人： Clara M. Nelson ,  Anu Chopra ,  David B. Knowles ,  Barry Van Gemert ,  Anil Kumar

发明人： Clara M. Nelson ,  Anu Chopra ,  David B. Knowles ,  Barry Van Gemert ,  Anil Kumar

IPC分类号： G02B523

CPC分类号： C07D311/92 ,  C07D493/04 ,  G02B5/23

摘要： Described are novel photochromic 2H-naphtho[1,2-b]pyran compounds essentially characterized by having two adjacent moderate to strong electron donor substituents at the 8 and 9 positions or a fused heterocyclic group formed by the substituents coming together, weak to moderate electron donors at the 2 position and a rating of at least 80 in the Relative &Dgr;OD at Saturation Test. The compounds also have certain substituents at the 5 position and optionally at the 6 position of the naphtho portion of the compound. These compounds may be represented by the following graphic formula: Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or adjacent plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro(indoline)type compounds, are also described.

摘要翻译： 描述了新颖的光致变色2H-萘并[1,2-b]吡喃化合物，其基本上特征在于在8和9位具有两个相邻的中等至强电子给体取代基或由取代基组成的稠合杂环基团，弱至中等电子 捐助者在2位置，并且在饱和度测试的相对DELTAOD中评级至少为80。 化合物在化合物的萘酚部分的5位和任选地位置上也具有某些取代基。 这些化合物可以由以下图解表示：还描述了含有这些化合物或被这些化合物包被的聚合物有机主体材料。 还描述了光学透明的物品，例如将眼用透镜或相邻的塑料透明胶片结合到新的萘并吡喃化合物或其组合与互补光致变色化合物，例如某些其它萘并吡喃，苯并吡喃和螺（二氢吲哚）型化合物。

公开(公告)号：US06296785B1

公开(公告)日：2001-10-02

申请号：US09656510

申请日：2000-09-06

申请人： Clara M. Nelson ,  Anu Chopra ,  Olga G. Petrovskaia ,  David B. Knowles ,  Barry Van Gemert ,  Anil Kumar

发明人： Clara M. Nelson ,  Anu Chopra ,  Olga G. Petrovskaia ,  David B. Knowles ,  Barry Van Gemert ,  Anil Kumar

IPC分类号： C07D31178

CPC分类号： C07D311/94 ,  C07D311/96 ,  G02B5/23

摘要： Described are novel photochromic indeno-fused naphthopyran compounds, examples of which include naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the naphtho portion of the naphthopyran as shown below. Also present on the naphthopyran are moderate to strong electron donor substituents at the number 6- and 7-positions and optionally at the 8-position of the pyran ring or a cyclic group fused to the h side of the naphtho portion and weak to moderate electron donor substiuents at the 3-position of the pyran ring. Certain substituents may also be present at the number 5, 8, 9, 10, 11, 12, or 13 carbon atoms of the compounds. These compounds have a rating of at least 80 in the Relative &Dgr;OD at Saturation Test and may be represented by the following graphic formula: Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro(indoline)type compounds, are also described.

摘要翻译： 描述了新的光致变色茚并稠合萘并吡喃化合物，其实例包括具有取代或未取代的茚并基团的萘并吡喃化合物，其2,1个位置与萘并吡喃的萘酚部分稠合，如下所示。 还存在于萘并吡喃上的是中子至强电子给体取代基，位于吡喃环的6-位和7-位，任选在8-位或稠合于萘酚部分的h侧的环状基团，弱至中等电子 在吡喃环3位的供体位。 某些取代基也可以存在于化合物的5,8,9,10,11,12或13个碳原子上。 这些化合物在饱和度测试中的相对DELTAOD中的等级至少为80，并且可以由以下图形表示：还描述了含有或涂覆有这些化合物的聚合物有机主体材料。 还描述了光学透明的物品，例如将眼用透镜或其它塑料透明胶片掺入新的萘并吡喃化合物或其组合与互补的光致变色化合物，例如某些其它萘并吡喃，苯并吡喃和螺（二氢吲哚）型化合物。

公开(公告)号：US6113814A

公开(公告)日：2000-09-05

申请号：US437982

申请日：1999-11-10

申请人： Barry Van Gemert ,  Anu Chopra ,  Anil Kumar

发明人： Barry Van Gemert ,  Anu Chopra ,  Anil Kumar

IPC分类号： G03C1/73 ,  C07D311/92 ,  C07D311/94 ,  C07D407/12 ,  C08G65/331 ,  C08G65/334 ,  C08K5/1545 ,  C08L101/00 ,  C09K9/02 ,  G02B1/04 ,  G02B5/23 ,  G05F3/02 ,  G02C7/10

CPC分类号： C07D407/12 ,  C07D311/92 ,  C07D311/94 ,  C08G65/3315 ,  C08G65/3318 ,  C08G65/3346 ,  C08K5/1545 ,  C09B57/02 ,  C09K9/02 ,  G02B1/041 ,  G02B1/043

摘要： Described are novel photochromic polymerizable polyalkoxylated naphthopyran compounds, examples of which are certain 2H-naphtho[1,2-b]pyrans, 3H-naphtho[2,1-b]pyrans and indeno[2,1-f]naphtho[1,2-b]pyrans each having at least one polyalkoxylated substituent of from 1 to 50 alkoxy units per substituent which is end-capped with a polymerizable group. Specific substituents are also present on the naphtho, indeno and pyrano portions of the compounds. These compounds may be represented by the following graphic formulae: ##STR1## Also described are various substrates, e.g., paper, glass, polymeric organic materials, etc., that contain or that are coated with such compounds. Optically clear articles such as contact lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, indenonaphthopyrans, benzopyrans, oxazine-type compounds, etc., are also described.

摘要翻译： 描述了新的光致变色可聚合的聚烷氧基化萘并吡喃化合物，其实例是某些2H-萘并[1,2-b]吡喃，3H-萘并[2,1-b]吡喃和茚并[2,1-f]萘并[ 2-b]吡喃，每个具有至少一个具有1至50个烷氧基单元的聚烷氧基化取代基，每个取代基被可聚合基团封端。 具体的取代基也存在于化合物的萘并茚并吡喃部分上。 这些化合物可以由以下图解表示：还描述了含有或涂覆有这些化合物的各种基材，例如纸，玻璃，聚合有机材料等。 还描述了光学透明的物品，例如将新颖的萘并吡喃化合物或其组合与互补的光致变色化合物（例如某些其它萘并吡喃，茚并萘并吡喃，苯并吡喃，恶嗪型化合物等）结合的隐形眼镜或其它塑料透明胶片。

公开(公告)号：US5891368A

公开(公告)日：1999-04-06

申请号：US942182

申请日：1997-10-01

申请人： Anil Kumar

发明人： Anil Kumar

IPC分类号： C07D311/94 ,  C08K5/00 ,  C08K5/1545 ,  G02B5/23 ,  C07D305/00 ,  C07D311/78 ,  C08J5/15

CPC分类号： C07D311/94 ,  C08K5/0041 ,  C08K5/1545

摘要： Described are novel photochromic 8-substituted fluoranthenopyran compounds having certain substituents at the 5 position of the pyran ring. These compounds may be represented by the following graphic formula: ##STR1## Also described are polymeric organic host materials that contain or that are coated with such compounds.

摘要翻译： 描述了在吡喃环的5位具有某些取代基的新型光致变色8-取代的荧蒽吡喃化合物。 这些化合物可以由以下图形化学式表示：还描述了含有或涂覆有这些化合物的聚合物有机主体材料。

公开(公告)号：US5651923A

公开(公告)日：1997-07-29

申请号：US571000

申请日：1995-12-12

申请人： Anil Kumar ,  David B. Knowles ,  Barry Van Gemert

发明人： Anil Kumar ,  David B. Knowles ,  Barry Van Gemert

IPC分类号： G02C7/10 ,  C07D307/77 ,  C07D311/78 ,  C07D311/92 ,  C07D311/94 ,  C07D311/96 ,  C07D405/04 ,  C07D407/04 ,  C07D413/04 ,  C07D491/052 ,  C07D493/04 ,  C07D493/10 ,  C07D495/04 ,  C08K5/00 ,  C08K5/15 ,  C08K5/1545 ,  C08L101/00 ,  C09K9/02 ,  G02B5/23 ,  G02F1/17 ,  G03C1/73 ,  C07D405/02

CPC分类号： C08K5/15 ,  C07D307/77 ,  C07D311/92 ,  C07D311/94 ,  C07D493/04 ,  C08K5/1545

摘要： Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds fused on the naphtho-portion of the naphthopyran ring with an indeno group or certain heterocyclic substituents. Certain substituents are also present at the 2 and 5 positions and sometimes at the 6 position of the naphthopyran ring. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.

摘要翻译： 描述了新颖的可逆光致变色的2H-萘并[1,2-b]吡喃化合物，其实例是在萘并吡喃环的萘基上稠合的茚基或某些杂环取代基。 某些取代基也存在于萘并吡喃环的2位和5位，有时位于6位。 还描述了含有或涂覆有这些化合物的有机主体材料。 还描述了将诸如螺旋（二氢吲哚）型化合物的引入新的萘并吡喃化合物或其组合与互补的光致变色化合物的眼用透镜或其它塑料透明胶片制成的物品。

公开(公告)号：US5637262A

公开(公告)日：1997-06-10

申请号：US454784

申请日：1995-05-31

申请人： Barry Van Gemert ,  Anil Kumar

发明人： Barry Van Gemert ,  Anil Kumar

IPC分类号： G02C7/10 ,  C07D311/92 ,  C07D311/96 ,  C07D405/04 ,  C07D407/04 ,  C07D409/04 ,  C08K5/10 ,  C08K5/1545 ,  C08L25/00 ,  C08L33/04 ,  C08L67/00 ,  C08L67/02 ,  C08L75/00 ,  C08L75/04 ,  C08L101/00 ,  C09K9/02 ,  C09K11/06 ,  G02B1/04 ,  G02B5/23 ,  G02B27/00

CPC分类号： G02B5/23 ,  C07D311/92

摘要： Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, of the following graphic formula: ##STR1## wherein R.sub.1 is hydrogen or alkyl, R.sub.2 is hydrogen or preferably a carboalkoxy group and R.sub.3 is hydrogen or preferably an alkyl group, provided that either R.sub.1 or R.sub.2 is hydrogen, and B and B' are the aryl groups phenyl or naphthyl, a heterocyclic aromatic group or together form a spiro adamantylene group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(oxazine) type compounds, are also described.

摘要翻译： 描述了新颖的可逆光致变色的3H-萘并[2,1-b]吡喃化合物，其具有下列结构式：其中R 1是氢或烷基，R 2是氢或优选烷氧基，R 3是氢或优选烷基 基团，其中R 1或R 2为氢，B和B'为芳基苯基或萘基，杂环芳基或一起形成螺金刚烷基。 还描述了含有或涂覆有这些化合物的有机主体材料。 还描述了将诸如螺旋（恶嗪）型化合物引入新颖的萘并吡喃化合物或其组合与互补的光致变色化合物，例如螺（恶嗪）类化合物的眼用透镜或其它塑料透明胶片的物品。

公开(公告)号：US20220121813A1

公开(公告)日：2022-04-21

申请号：US17555473

申请日：2021-12-19

申请人： Anil Kumar

发明人： Anil Kumar ,  Ameet Deshpande ,  Rohith Nair

IPC分类号： G06F40/194 ,  G06F16/958 ,  G06F40/14 ,  G06F40/117 ,  G06F40/221 ,  G06F40/284

摘要： A computer readable medium comprising a plurality of instructions stored thereon that are executable by a computer processor to perform steps to identify a changed element within a target web page is disclosed. A pre-region longest matching segment that matches a pre-region segment of a pre-region of a source web page is identified within a pre-region of the target page. A post-region longest matching segment that matches a post-region segment of a post-region of a source web page is identified within a post-region of the target page. The changed element in the target web page is identified that is between the pre-region longest matching segment and the post-region longest matching segment in response to the pre-region longest matching segment being determined to be within a pre-defined distance of the post-region longest matching segment.

公开(公告)号：US11205041B2

公开(公告)日：2021-12-21

申请号：US16541565

申请日：2019-08-15

申请人： Anil Kumar

发明人： Anil Kumar ,  Ameet Deshpande ,  Rohith Nair

IPC分类号： G06F40/194 ,  G06F16/958 ,  G06F40/14 ,  G06F40/117 ,  G06F40/221 ,  G06F40/284

摘要： A system and method of identifying a changed element within a target web page is disclosed. A pre-region longest matching segment of the pre-region that matches a pre-region segment of a pre-region of a source web page is identified within a pre-region of the target page. A post-region longest matching segment of the post-region that matches a post-region segment of the post-region of a source web page is identified within a post-region of the target page. The changed element in the target web page is identified that is between the pre-region longest matching segment and the post-region longest matching segment in response to the pre-region longest matching segment being determined to be within a pre-defined distance of the post-region longest matching segment.

公开(公告)号：US20160051152A1

公开(公告)日：2016-02-25

申请号：US14832255

申请日：2015-08-21

申请人： Anil Kumar

发明人： Anil Kumar

IPC分类号： A61B5/02 ,  G01N33/49 ,  A61B10/00

CPC分类号： A61B5/02042 ,  A61B5/0075 ,  A61B5/14507 ,  A61B10/0045 ,  G01N33/49

摘要： The invention relates to a method for estimating blood loss from a sample of fluid collected during surgery. The method includes utilizing spectrophotometric analysis to determine a hemoglobin proportion within the sample, and estimating a patient's total blood loss based upon the analysis and known proportions of hemoglobin mass to blood volume.

摘要翻译： 本发明涉及一种用于估计在手术期间收集的流体样本的失血量的方法。 该方法包括利用分光光度分析来确定样品中的血红蛋白比例，并且基于血红蛋白质量与血液体积的分析和已知比例来估计患者的总失血量。