公开(公告)号：US10596749B2

公开(公告)日：2020-03-24

申请号：US16103550

申请日：2018-08-14

Applicant: Chandra Sekar

Inventor： Chandra Sekar

IPC: B29C53/60 ,  D06B1/14 ,  B29C53/82 ,  B29C53/80 ,  B29C53/58 ,  B29C48/09 ,  B29C53/56 ,  B29C48/154 ,  B29C48/00 ,  B29L31/32 ,  B29C65/00 ,  B05C17/02 ,  B32B1/08 ,  B29K23/00

Abstract: In an embodiment, a paint roller manufacturing system and method uses a fabric-coating applicator to apply a fabric adhesive onto a portion of a perforated paint roller cover fabric material having a plurality of perforations through which adhesive may flow, and into the plurality of perforations and into interstitial spaces of the fabric material, to yield a length of coated fabric. An inner strip and an outer strip are wound about a mandrel in offset relation. A strip-coating applicator is used to apply a strip adhesive to the outer strip as it is wound about the mandrel. Simultaneously with the step of applying the strip adhesive to the outer strip, a portion of the coated paint roller fabric material is received at the outer strip and the length of coated fabric is wound about at least the outer strip to form a paint roller tube.

公开(公告)号：US10576682B2

公开(公告)日：2020-03-03

申请号：US16539832

申请日：2019-08-13

Applicant: Chandra Sekar ,  Santosh Sekar

Inventor： Chandra Sekar ,  Santosh Sekar

IPC: B29C53/60 ,  B29C48/09 ,  D06B1/14 ,  B29C53/82 ,  B29C65/00 ,  B05C17/02 ,  B32B1/08 ,  B29L31/32 ,  B29C53/62

Abstract: A system and method are provided for conditioning paint roller cover fabric inline in a continuous paint roller manufacturing process. The system and method provide an inline fabric conditioning unit upstream of the point in the process that the paint roller fabric cover strip is wrapped about the outer side of the outer strip, the fabric conditioning unit including a fabric conditioning device that conditions the paint roller fabric cover strip as it is being fed towards the outer side of the outer strip. The fabric conditioning unit may be used to perforate the fabric, to remove loose fibers from the fabric side of the paint roller fabric cover, to buff the paint roller fabric, and to orient the paint roller cover fibers. The continuous paint roller manufacturing process includes steps of feeding an inner strip and an outer strip towards a mandrel, wrapping the inner strip and the outer strip about the mandrel in offset relation, applying a strip adhesive to at least a portion of an outer side of the inner strip and at least a portion of an outer side of the outer strip, feeding a paint roller fabric cover strip having a fabric side and a backing side towards the outer side of the outer strip, the fabric side comprising loose fibers and attached fibers, forming a paint roller tube by wrapping the paint roller fabric cover strip about the outer strip at a point in the process after the strip adhesive has been applied to the outer side of the outer strip such that the backing side contacts the strip adhesive, applying compression to the paint roller tube, and cutting the paint roller tubes into like lengths.

公开(公告)号：US10421229B1

公开(公告)日：2019-09-24

申请号：US16261227

申请日：2019-01-29

Applicant: Chandra Sekar ,  Santosh Sekar

Inventor： Chandra Sekar ,  Santosh Sekar

IPC: B29C53/56 ,  B29C65/48 ,  B29C53/80 ,  B29C65/00 ,  B29L31/32 ,  B32B37/15 ,  G05B19/409 ,  B29C53/60

Abstract: A paint roller manufacturing system and method are described. In an embodiment, an inner strip of material and an outer strip of material are wound about a mandrel in offset relation. The inner strip of material and the outer strip of material each comprise material that results in a final paint roller which shrinks by less than 2.5 percent of the final paint roller axial length, or which has shrinkage that varies by less +/−0.1%, upon hardening and setting. An adhesive is applied to at least a portion of the outer strip as it is wound about the mandrel. A length of fabric is wound about at least the outer strip to form a paint roller tube, and compression is applied to the paint roller tube while advancing the paint roller tube in a direction parallel to the mandrel. A precision measuring or sensing device is used to control a cutting device causing the cutting device to cut the advancing paint roller tube into pre-selected lengths prior to the paint roller tube hardening and setting.

公开(公告)号：US09956719B1

公开(公告)日：2018-05-01

申请号：US15676507

申请日：2017-08-14

Applicant: Chandra Sekar

Inventor： Chandra Sekar

IPC: B05C17/02 ,  B29C53/60 ,  B29C47/00 ,  B29C53/82 ,  D06B1/14 ,  B29C65/00 ,  B29L31/32 ,  B32B1/08

CPC classification number: B29C53/607 ,  B05C17/0207 ,  B29C47/0023 ,  B29C53/581 ,  B29C53/60 ,  B29C53/8083 ,  B29C53/827 ,  B29C66/02242 ,  B29C66/30325 ,  B29C2053/8025 ,  B29C2793/0027 ,  B29C2793/0045 ,  B29C2793/0081 ,  B29C2793/009 ,  B29L2031/328 ,  B32B1/08 ,  B32B2597/00 ,  D06B1/14

Abstract: A paint roller manufacturing system includes a cover dispenser for continuously dispensing a windable width of paint roller cover fabric, a fabric supporting and advancing device for supporting the fabric and maintaining a width-wise dimension of the paint roller cover fabric as the fabric advances, a fabric coating applicator for applying a coating to the back side of the paint roller cover fabric while the fabric supporting and advancing device maintains the fabric in a width-wise dimension, and a compressing roller positioned downstream of the fabric coating applicator and configured to apply a compressive force on the coating after it has been applied to the back side of the paint roller cover fabric and while the fabric is supported by the fabric supporting and advancing device. In two-strip embodiments, first and second strip dispensers continuously dispense a first and second windable width of strip material. A guide system guides the first and second strip coming from the first and second strip dispensers to be wound about a mandrel and guides the coated paint roller cover fabric from the fabric supporting device to be wound about the first and second strips. An adhesive applicator is configured to apply adhesive on substantially all of the outer side of the first and second windable strips and positioned to apply adhesive to the outer side of the first and second windable strips upstream of a location where the coated paint roller cover fabric is wound about the first and second strips.

公开(公告)号：US08772749B2

公开(公告)日：2014-07-08

申请号：US13047020

申请日：2011-03-14

Applicant: Deepak Chandra Sekar ,  Franz Kreupl ,  Raghuveer S. Makala

Inventor： Deepak Chandra Sekar ,  Franz Kreupl ,  Raghuveer S. Makala

IPC: H01L47/00 ,  H01L45/00

CPC classification number: H01L45/146 ,  H01L27/2409 ,  H01L27/2481 ,  H01L45/08 ,  H01L45/1233 ,  H01L45/1253 ,  H01L45/145 ,  H01L45/1675

Abstract: In a first aspect, a metal-insulator-metal (MIM) stack is provided that includes (1) a first conductive layer comprising a silicon-germanium (SiGe) alloy; (2) a resistivity-switching layer comprising a metal oxide layer formed above the first conductive layer; and (3) a second conductive layer formed above the resistivity-switching layer. A memory cell may be formed from the MIM stack. Numerous other aspects are provided.

Abstract translation: 在第一方面，提供了一种金属绝缘体金属（MIM）堆叠，其包括：（1）包含硅 - 锗（SiGe）合金的第一导电层; （2）电阻率切换层，包括形成在所述第一导电层上方的金属氧化物层; 和（3）形成在电阻率切换层上方的第二导电层。 存储单元可以由MIM堆叠形成。 提供了许多其他方面。

公开(公告)号：US08771451B2

公开(公告)日：2014-07-08

申请号：US13431597

申请日：2012-03-27

Applicant: Chandra Sekar

Inventor： Chandra Sekar

IPC: B65H81/00

CPC classification number: B32B37/1284 ,  B29C47/0023 ,  B29C47/0038 ,  B29C47/0042 ,  B29C47/021 ,  B29C47/065 ,  B29C47/38 ,  B29C53/581 ,  B29C53/607 ,  B29C63/0069 ,  B29C63/105 ,  B29C2063/485 ,  B29C2793/009 ,  B29D23/001 ,  B29K2023/12 ,  B29K2105/04 ,  B29L2023/00 ,  B29L2031/328

Abstract: Described are methods of making a thermoplastic core paint roller using a composite cover material having a backing made from a compound comprising a polypropylene-based elastomer and calcium carbonate having between 5% and 50% calcium carbonate by weight. One or various compounds of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips and/or the adhesives. The materials can be assembled in a continuous manufacturing process.

Abstract translation: 描述了使用具有由包含聚丙烯类弹性体和碳酸钙的化合物制成的背衬的复合覆盖材料制成热塑性芯涂料辊的方法，该碳酸钙的重量在5％至50％之间。 可以使用一种或多种具有5重量％至66重量％碳酸钙之间的聚碳酸酯和碳酸钙的化合物，以形成构成涂料辊的一种或多种组分的部分，包括例如热塑性带和/或 粘合剂。 材料可以在连续的制造过程中组装。

公开(公告)号：US20130075021A1

公开(公告)日：2013-03-28

申请号：US13431597

申请日：2012-03-27

Applicant: Chandra SEKAR

Inventor： Chandra SEKAR

IPC: B32B37/12

CPC classification number: B32B37/1284 ,  B29C47/0023 ,  B29C47/0038 ,  B29C47/0042 ,  B29C47/021 ,  B29C47/065 ,  B29C47/38 ,  B29C53/581 ,  B29C53/607 ,  B29C63/0069 ,  B29C63/105 ,  B29C2063/485 ,  B29C2793/009 ,  B29D23/001 ,  B29K2023/12 ,  B29K2105/04 ,  B29L2023/00 ,  B29L2031/328

Abstract: Described are methods of making a thermoplastic core paint roller using a composite cover material having a backing made from a compound comprising a polypropylene-based elastomer and calcium carbonate having between 5% and 50% calcium carbonate by weight. One or various compounds of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips and/or the adhesives. The materials can be assembled in a continuous manufacturing process.

Abstract translation: 描述了使用具有由包含聚丙烯类弹性体和碳酸钙的化合物制成的背衬的复合覆盖材料制成热塑性芯涂料辊的方法，该碳酸钙的重量在5％至50％之间。 可以使用一种或多种具有5重量％至66重量％碳酸钙之间的聚碳酸酯和碳酸钙的化合物，以形成构成涂料辊的一种或多种组分的部分，包括例如热塑性带和/或 粘合剂。 材料可以在连续的制造过程中组装。

公开(公告)号：US20120286448A1

公开(公告)日：2012-11-15

申请号：US13441546

申请日：2012-04-06

Applicant: Chandra Sekar

Inventor： Chandra Sekar

IPC: B29C63/18

CPC classification number: B29C53/581 ,  B29C48/001 ,  B29C48/0012 ,  B29C48/09 ,  B29C48/21 ,  B29C48/395 ,  B29C53/607 ,  B29C63/0069 ,  B29C63/105 ,  B29C2063/485 ,  B29C2793/009 ,  B29D23/001 ,  B29K2023/12 ,  B29K2105/04 ,  B29L2023/00 ,  B29L2031/328 ,  C08L23/10 ,  C08L2205/02 ,  C09J123/10

Abstract: Described are methods of making a composite cover material for use in a thermoplastic core paint roller, the composite cover material formed by coextruding a smoothly flowing layer comprising a coextrudite comprising polypropylene-based elastomer and a coextrudite comprising polypropylene between a pile material and a roller. Each of coextrudites may comprise calcium carbonate having between 5% and 50% calcium carbonate by weight.

Abstract translation: 描述了制造用于热塑性芯涂料辊的复合材料覆盖材料的方法，该复合覆盖材料是通过共挤出包含聚丙烯基弹性体的包括共混物的平滑流动层和在堆料和辊之间包含聚丙烯的共混物而形成的。 每一份共掺物可以包含重量在5％至50％碳酸钙之间的碳酸钙。

公开(公告)号：US20120085485A1

公开(公告)日：2012-04-12

申请号：US13081114

申请日：2011-04-06

Applicant: Chandra SEKAR

Inventor： Chandra SEKAR

IPC: B29C63/10 ,  B05D3/12 ,  B05D3/00 ,  B05D5/10

CPC classification number: B29D99/0032 ,  B05C17/0207 ,  B05C17/0215 ,  B29C47/0023 ,  B29C47/0038 ,  B29C47/0042 ,  B29C47/021 ,  B29C47/065 ,  B29C47/38 ,  B29C53/581 ,  B29C53/607 ,  B29C63/0069 ,  B29C63/105 ,  B29C65/48 ,  B29C65/4855 ,  B29C65/525 ,  B29C66/5326 ,  B29C2063/485 ,  B29C2793/009 ,  B29D23/001 ,  B29D99/0035 ,  B29K2023/10 ,  B29K2023/12 ,  B29K2105/04 ,  B29K2105/16 ,  B29K2509/00 ,  B29L2009/00 ,  B29L2023/00 ,  B29L2031/328 ,  B31C3/00

Abstract: Described are methods of making a paint roller using a composite cover material made from a compound of polypropylene and calcium carbonate having between 5% and 50% calcium carbonate by weight. One or various compounds may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips, adhesives and/or the backing of a composite cover material. The materials can be assembled in a continuous manufacturing process. Also described are methods of making a paint roller using an adhesive made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight, and methods of making a paint roller using preformed strips or core material made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight.

Abstract translation: 描述了使用由具有5重量％至50重量％的碳酸钙之间的聚丙烯和碳酸钙的化合物制成的复合覆盖材料来制备涂漆辊的方法。 可以使用一种或多种化合物来形成组成涂料辊的一个或多个组分的部分，包括例如复合材料覆盖材料的热塑性带，粘合剂和/或背衬。 材料可以在连续的制造过程中组装。 还描述了使用由具有5重量％至66重量％的碳酸钙的聚丙烯和碳酸钙的化合物制成的粘合剂制备涂漆辊的方法，以及使用由化合物制成的预成形条或芯材制备涂料辊的方法 的聚丙烯和碳酸钙的重量比为5％至66％的碳酸钙。

公开(公告)号：US08142599B2

公开(公告)日：2012-03-27

申请号：US12463876

申请日：2009-05-11

Applicant: Chandra Sekar

Inventor： Chandra Sekar

IPC: A46D1/00 ,  B32B5/00 ,  B32B37/00 ,  B32B38/04 ,  D05C15/00 ,  B29C47/00 ,  B29C65/00 ,  B05C1/00 ,  B05C17/02 ,  B44D5/00

CPC classification number: B29C53/581 ,  B29C53/607 ,  B29L2031/328 ,  B32B5/024 ,  B32B5/026 ,  B32B7/12 ,  B32B27/12 ,  B32B27/32 ,  B32B2607/00 ,  Y10T156/1052 ,  Y10T156/1087

Abstract: Described is a method of making a non-porous composite cover material formed of a pile material and an adhesive layer made from polypropylene or predominantly from polypropylene. A width of the pile material is advanced, and a layer of adhesive is applied thereupon. The adhesive is allowed to set, and the width of material is longitudinally cut into strips of composite cover material. Laminated paint rollers are thereafter made by helically one or two strips of polypropylene or strips made predominantly of polypropylene about a mandrel and applying a layer of adhesive made from polypropylene or predominantly from polypropylene on the strip or strips, and applying a non-porous composite cover material. A compressive force is applied upon the outer surface of the composite cover material to urge the composite cover material, the layer of adhesive and strip or strips of thermoplastic material together against the mandrel, thereby laminating the inner surface of the composite cover material and the strip or strips together and forming a continuous product that can be cut and finished to make paint rollers.

Abstract translation: 描述了一种制造由绒头材料和由聚丙烯或主要由聚丙烯制成的粘合剂层形成的无孔复合材料覆盖材料的方法。 绒头材料的宽度前进，并在其上施加一层粘合剂。 允许粘合剂固定，并且将材料的宽度纵向切成复合材料覆盖材料的条带。 层压漆辊之后通过螺旋形成一条或两条聚丙烯条或主要由聚丙烯围绕心轴制成的条带，并且将由聚丙烯制成的或主要由聚丙烯制成的粘合剂层施加在带或条上，并且施加无孔复合材料盖 材料。 压缩力施加在复合材料覆盖材料的外表面上，以将复合覆盖材料，粘合剂层和热塑性材料的条带或条带一起压靠在心轴上，从而层压复合覆盖材料的内表面和条带 或条带在一起并形成可以被切割和完成以形成油漆辊的连续产品。