公开(公告)号：US5931022A

公开(公告)日：1999-08-03

申请号：US940320

申请日：1997-09-30

Applicant: Shuguang Deng ,  Ravi Kumar ,  Ravi Jain

Inventor： Shuguang Deng ,  Ravi Kumar ,  Ravi Jain

IPC: B01D53/02 ,  B01D53/04 ,  B01D53/047 ,  B01J20/08 ,  B01J20/34 ,  F25J1/00

CPC classification number: B01D53/047 ,  B01D2253/104 ,  B01D2256/10 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40009 ,  B01D2259/40056 ,  B01D2259/40062 ,  B01D2259/40081 ,  B01D2259/4009 ,  B01D2259/402 ,  B01D2259/416 ,  B01D53/0476 ,  B01D53/261 ,  Y02C10/08 ,  Y10S62/908

Abstract: An activated alumina adsorbent used in a PSA air prepurification process for removal of carbon dioxide from the air is thermally regenerated when the carbon dioxide content remaining in the adsorbent following an adsorbent regeneration step of the PSA process reaches a certain level.

Abstract translation: 当在PSA方法的吸附剂再生步骤之后残留在吸附剂中的二氧化碳含量达到一定水平时，用于PSA空气预纯化方法中用于从空气中除去二氧化碳的活性氧化铝吸附剂被热再生。

公开(公告)号：US06511640B1

公开(公告)日：2003-01-28

申请号：US09606886

申请日：2000-06-29

Applicant: Ravi Kumar ,  Shuguang Deng

Inventor： Ravi Kumar ,  Shuguang Deng

IPC: B01D5300

CPC classification number: C01B21/0494 ,  B01D53/0462 ,  B01D53/261 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/4146 ,  B01D2259/4148 ,  B01D2259/416 ,  B01J23/44 ,  B01J23/8892 ,  C01B2210/0004 ,  C01B2210/0014 ,  C01B2210/005 ,  C01B2210/0053 ,  C01B2210/0062 ,  F25J3/04163 ,  F25J3/04169 ,  F25J2205/82 ,  F25J2215/44 ,  Y02C10/08 ,  Y02P20/152

Abstract: A process for producing a purified gaseous product from a gaseous feedstream such as air containing impurities is disclosed. The impurities such as hydrogen, water vapor, carbon monoxide and carbon dioxide are removed from the gaseous feedstream in a vessel having layers of adsorbents and oxidation catalysts. The placement of the hydrogen to water vapor conversion catalyst downstream of the step of contacting the feedstream with a catalyst to convert the carbon monoxide to the carbon dioxide and the step of removing the carbon dioxide from the feedstream improves not only performance but also the economies of the purification system.

Abstract translation: 公开了一种从含有杂质的空气等气态原料流中制备纯化气体产物的方法。 在具有吸附剂和氧化催化剂层的容器中，从气态进料流中除去氢，水蒸气，一氧化碳和二氧化碳等杂质。 在将进料流与催化剂接触以将一氧化碳转化为二氧化碳的步骤和从进料流中除去二氧化碳的步骤之后将氢置于水蒸气转化催化剂的下游不仅改善了性能，而且改善了 净化系统。

公开(公告)号：US5980611A

公开(公告)日：1999-11-09

申请号：US937713

申请日：1997-09-25

Applicant: Ravi Kumar ,  Shuguang Deng ,  Martin Bulow ,  Frank Fitch ,  Adeola Florence Ojo ,  Craig S. Gittleman

Inventor： Ravi Kumar ,  Shuguang Deng ,  Martin Bulow ,  Frank Fitch ,  Adeola Florence Ojo ,  Craig S. Gittleman

IPC: B01D53/047

CPC classification number: B01D53/047 ,  B01D2253/108 ,  B01D2253/30 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2257/80 ,  B01D2259/40052 ,  B01D2259/416 ,  Y02C10/08

Abstract: Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using as the adsorbent a single layer of zeolite having a silicon to aluminum atomic ratio in the range of 1.5 to 70. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.

Abstract translation: 通过使气体进行变压吸附方法，将含有高达约1体积％二氧化碳的气体基本上从所有二氧化碳中除去，所述变压吸附方法使用具有硅至铝原子比在该范围内的单层沸石 该方法特别适用于在使空气进行低温蒸馏之前基本上除去空气中包含的基本上所有的二氧化碳和水蒸气。

公开(公告)号：US06358302B1

公开(公告)日：2002-03-19

申请号：US09442840

申请日：1999-11-18

Applicant: Shuguang Deng ,  Ravi Kumar ,  Rudolph J. Wolf ,  Mark J. Andrecovich

Inventor： Shuguang Deng ,  Ravi Kumar ,  Rudolph J. Wolf ,  Mark J. Andrecovich

IPC: B01D53047

CPC classification number: B01D53/02 ,  B01D53/0462 ,  B01D53/047 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2256/22 ,  B01D2257/404 ,  B01D2257/702 ,  B01D2257/80 ,  B01D2259/4143 ,  Y02C10/08 ,  Y02C20/10 ,  Y10S95/902

Abstract: The present invention provides for a multi-composite adsorbent mixture which will remove H2O, CO2 and nitrogen oxides and/or hydrocarbons from a feed gas stream. The improvement lies in the use of a third adsorbent which is selective for nitrogen oxides, hydrocarbons or both.

Abstract translation: 本发明提供了一种多元复合吸附剂混合物，其将从进料气流中除去H 2 O，CO 2和氮氧化物和/或烃。 改进在于使用对氮氧化物，碳氢化合物或二者都是选择性的第三吸附剂。

公开(公告)号：US06238460B1

公开(公告)日：2001-05-29

申请号：US09277306

申请日：1999-03-26

Applicant: Shuguang Deng ,  Ravi Kumar ,  Martin Bülow ,  Frank R. Fitch ,  Adeola Florence Ojo ,  Craig S. Gittleman

Inventor： Shuguang Deng ,  Ravi Kumar ,  Martin Bülow ,  Frank R. Fitch ,  Adeola Florence Ojo ,  Craig S. Gittleman

IPC: B01D53049

CPC classification number: B01D53/02 ,  B01D53/047 ,  B01D53/261 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2253/1085 ,  B01D2256/22 ,  B01D2259/40052 ,  B01D2259/416 ,  Y02C10/08

Abstract: Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using a two layer adsorption system, wherein the first layer contains activated alumina and the second layer is a zeolite or a combination of zeolites having a silicon to aluminum atomic ratio of at least 1.5. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.

Abstract translation: 通过使用双层吸附系统对气体进行变压吸附过程，基本上所有的二氧化碳从含有高达约1体积％二氧化碳的气体中除去，其中第一层含有活性氧化铝，第二层为 硅铝原子比至少为1.5的沸石或沸石的组合。 该方法特别适用于在空气进行低温蒸馏之前基本上除去空气中所含的二氧化碳和水蒸气。

公开(公告)号：US08634399B2

公开(公告)日：2014-01-21

申请号：US11504413

申请日：2006-08-11

Applicant: Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

Inventor： Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

IPC: H04J3/24 ,  H04J3/06 ,  H04W28/26 ,  H04L12/56 ,  H04L5/00

CPC classification number: H04J3/0685 ,  H04L5/0064 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04L47/805 ,  H04W28/26

Abstract: Techniques for performing traffic classification for uplink and bi-directional traffic streams are described. A station receives packets for transmission on the uplink to an access point. The station identifies packets for each uplink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The station sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream. The access point receives packets for transmission on the downlink to at least one station. The access point identifies packets for each downlink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The access point sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream.

Abstract translation: 描述了用于执行上行链路和双向业务流的流分类的技术。 站点接收分组，以在上行链路上接入点进行传输。 该站基于每个业务流的至少一个分类参数来识别每个上行链路业务流的分组和每个双向业务流的分组。 工作站根据业务流的至少一个QoS参数为每个业务流发送数据包。 接入点接收用于在下行链路上传输到至少一个站的分组。 接入点基于每个业务流的至少一个分类参数来识别每个下行链路业务流的分组和每个双向业务流的分组。 接入点根据用于业务流的至少一个QoS参数为每个业务流发送分组。

公开(公告)号：US20120054594A1

公开(公告)日：2012-03-01

申请号：US12870456

申请日：2010-08-27

Applicant: Scott Alan Isaacson ,  Jason Taylor ,  Haripriya Srinivasaraghavan ,  Mandhakini Subramanian ,  Ravi Kumar ,  Manoj Madhavan ,  Pooja Gada

Inventor： Scott Alan Isaacson ,  Jason Taylor ,  Haripriya Srinivasaraghavan ,  Mandhakini Subramanian ,  Ravi Kumar ,  Manoj Madhavan ,  Pooja Gada

IPC: G06F17/00

CPC classification number: G06F17/30058 ,  G06F17/30873 ,  G06F17/30893 ,  H04L12/1827

Abstract: Techniques for content services are provided. Documents are managed from their native storage locations. Access to portions of the documents is provided via separate addressable references. Principals access and annotate the portions of the documents remotely. Identity and policy restrictions are enforced against access from the native storage locations.

Abstract translation: 提供内容服务技术。 文件从其本地存储位置进行管理。 通过单独的可寻址引用来访问部分文档。 校长可远程访问和注释文档的部分。 对本地存储位置的访问强制执行身份和策略限制。

公开(公告)号：US20120049479A1

公开(公告)日：2012-03-01

申请号：US12869572

申请日：2010-08-26

Applicant: Amit Rajshekar Kalyani ,  Munishwar Ahuja ,  Anubhav Kumar ,  Ravi Kumar ,  Krishnarao Dhuri ,  Nikhil Subhashchandra Tambe

Inventor： Amit Rajshekar Kalyani ,  Munishwar Ahuja ,  Anubhav Kumar ,  Ravi Kumar ,  Krishnarao Dhuri ,  Nikhil Subhashchandra Tambe

IPC: B60G17/033 ,  B60G17/02 ,  B61F5/00 ,  B60G11/14

CPC classification number: B61F5/36

Abstract: Systems and methods provide variable spring stiffness for weight management in a vehicle. One system includes a plurality of springs and a plurality of spring retainers configured to adjust a number of inactive coils of the plurality of springs. Additionally, a motor is provided that is connected to the plurality of spring retainers and configured to actuate the spring retainers to adjust the number of inactive coils of the plurality of springs. Further, a controller is provided that is coupled to motor to control the motor to actuate the spring retainers to adjust the number of inactive coils of the plurality of springs.

Abstract translation: 系统和方法为车辆中的重量管理提供了可变的弹簧刚度。 一个系统包括多个弹簧和多个弹簧保持器，其构造成调节多个弹簧的多个不活动的线圈。 此外，提供一种电动机，其连接到多个弹簧保持器并且构造成致动弹簧保持器以调节多个弹簧的非活动线圈的数量。 此外，提供了一个控制器，其耦合到电动机以控制电动机来致动弹簧保持器以调节多个弹簧的非活动线圈的数量。

公开(公告)号：US07751206B2

公开(公告)日：2010-07-06

申请号：US11696246

申请日：2007-04-04

Applicant: Michael Kosacek ,  Ravi Kumar

Inventor： Michael Kosacek ,  Ravi Kumar

IPC: H02B1/21

CPC classification number: H02G3/30

Abstract: A cable management system includes a cable base comprising a first end, a second end, and a resilient member that is operable to allow a rest distance between the first end and the second end to be changed. A plurality of cables are partially housed in the cable base, wherein each cable includes a first section that extends from the first end of the cable base and a second section that extends from the second end of the cable base.

Abstract translation: 电缆管理系统包括电缆基座，其包括第一端，第二端和可操作以允许第一端和第二端之间的静止距离改变的弹性构件。 多个电缆部分地容纳在电缆基座中，其中每个电缆包括从电缆基座的第一端延伸的第一部分和从电缆基座的第二端延伸的第二部分。

公开(公告)号：US07618478B2

公开(公告)日：2009-11-17

申请号：US11395139

申请日：2006-04-03

Applicant: Ravi Kumar

Inventor： Ravi Kumar

IPC: B01D53/02

CPC classification number: B01D53/0476 ,  B01D53/047 ,  B01D2253/10 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2256/16 ,  B01D2256/22 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40069 ,  B01D2259/40073 ,  B01D2259/40075 ,  B01D2259/406 ,  B01D2259/4062 ,  C01B3/34 ,  C01B3/48 ,  C01B3/56 ,  C01B32/50 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/043 ,  C01B2203/0475 ,  C01B2203/1241 ,  C01B2203/146 ,  C01B2203/86 ,  Y02C10/08 ,  Y02P20/152 ,  Y02P30/30

Abstract: The present invention generally relates to vacuum pressure swing adsorption (VPSA) processes and apparatus to recover carbon dioxide having a purity of approximately ≧80 mole percent from streams containing at least carbon dioxide and hydrogen (e.g., syngas). The feed to the CO2 VPSA can be at super ambient pressure. The CO2 VPSA unit produces two streams, a H2-enriched stream and a CO2 product stream. The process cycle steps are selected such that there is minimal or no hydrogen losses from the process. The recovered CO2 can be further upgraded, sequestered or used in applications such as enhanced oil recovery (EOR).

Abstract translation: 本发明一般涉及真空变压吸附（VPSA）方法和装置，用于从至少包含二氧化碳和氢气（例如合成气）的物流中回收纯度约> 80摩尔％的二氧化碳。 CO2 VPSA的进料可以处于超级环境压力下。 二氧化碳VPSA单元产生两股物流，即富H2的物流和二氧化碳产物流。 选择工艺循环步骤使得该方法具有最小的或没有氢的损失。 回收的二氧化碳可以进一步升级，隔离或用于强化采油（EOR）等应用。