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1. 发明授权

US5262139A Removal of sulfur dioxide from gas streams 失效
标题翻译：从气流中去除二氧化硫
公开(公告)号：US5262139A
公开(公告)日：1993-11-16
申请号：US953505
申请日：1992-09-29
申请人： Leo E. Hakka , Paul J. Parisi
发明人： Leo E. Hakka , Paul J. Parisi
IPC分类号： B01D53/14 , C01B17/60 , C01B17/20 , C01B17/00
CPC分类号： B01D53/1468 , B01D53/1425 , B01D53/1493 , C01B17/60
摘要： Processes for the removal of sulfur dioxide from gas streams, e.g., stack gases, are disclosed wherein the absorption occurs in the presence of a diamine. The first amine group, i.e., stronger amine group, of the diamine is in salt form, having sulfite anions associated therewith, and absorbs by a sulfite/bisulfite absorption mechanism. The second amine groups absorbs sulfur dioxide in free base form. The sulfite salt on the first amine group is maintained by controlling the level of heat stable salts in the absorbent. Both the first and second amine groups can be conveniently regenerated together, e.g., by steam stripping.
摘要翻译：公开了从气流（例如烟道气体）中除去二氧化硫的方法，其中吸收发生在二胺的存在下。二胺的第一胺基，即更强的胺基是盐形式，具有与其相关的亚硫酸根阴离子，并被亚硫酸盐/亚硫酸氢盐吸收机理吸收。第二胺基以游离碱形式吸收二氧化硫。通过控制吸收剂中热稳定盐的水平来维持第一胺基上的亚硫酸盐。第一和第二胺基都可以方便地一起再生，例如通过汽提。

2. 发明授权

US06342169B1 Safe storage and transportation of sulfur dioxide 有权
标题翻译：安全储存和运输二氧化硫
公开(公告)号：US06342169B1
公开(公告)日：2002-01-29
申请号：US09380078
申请日：1999-08-25
申请人： Leo E. Hakka , Paul J. Parisi
发明人： Leo E. Hakka , Paul J. Parisi
IPC分类号： C09K300
CPC分类号： C01B17/48 , B01D53/1481 , C01B17/56 , C01B17/60 , Y02A50/2349
摘要： The invention relates to a method of confining sulfur dioxide for storage or transportation under safe conditions. The method of the invention comprises the steps of (a) contacting a sulfur dioxide-containing gas stream with an absorbing medium comprising water and a water-soluble amine absorbent having at least one amine group with a pKa value greater than about 7 and at least one other amine group with a pKa value less than about 6.5 so that the at least one amine group with a pKa value greater than about 7 irreversibly absorbs sulfur dioxide in salt form rendering the amine absorbent non-volatile and the at least one other amine group with a pKa value less than about 6.5 reversibly absorbs sulfur dioxide, to thereby saturate the absorbing medium with sulfur dioxide against a partial pressure of sulfur dioxide of no more than about 1 atmosphere at 25° C.; and (b) charging the absorbing medium saturated with sulfur dioxide obtained in step (a) into a container for storage or transportation.
摘要翻译：本发明涉及一种将二氧化硫限制在安全条件下储存或运输的方法。本发明的方法包括以下步骤：（a）使含二氧化硫的气流与包含水的吸收介质和具有pKa值大于约7的至少一个胺基的水溶性胺吸收剂接触，并且至少 pKa值小于约6.5的另一个胺基，使得pKa值大于约7的至少一个胺基不可逆地吸收盐形式的二氧化硫，使得胺吸收剂不挥发和至少一种其它胺基 pKa值小于约6.5可逆地吸收二氧化硫，从而使二氧化硫的吸收介质在25℃下对二氧化硫分压不超过约1个大气饱和; 和（b）将在步骤（a）中获得的饱和二氧化硫的吸收介质装入用于储存或运输的容器中。

3. 发明授权

US5304361A Removal of hydrogen sulfide 失效
标题翻译：去除硫化氢
公开(公告)号：US5304361A
公开(公告)日：1994-04-19
申请号：US905037
申请日：1992-06-26
申请人： Paul J. Parisi
发明人： Paul J. Parisi
IPC分类号： B01D53/14 , B01D53/86 , C01B17/04 , C01B17/16
CPC分类号： C01B17/0456 , B01D53/1468 , B01D53/1493 , B01D53/8612 , Y02P20/133
摘要： Improved processes are disclosed for the removal of hydrogen sulfide from feed streams by conversion of hydrogen sulfide and sulfur dioxide to elemental sulfur and water, e.g. Claus process. The feed stream of the present invention is divided into two split streams wherein one is incinerated to form sulfur dioxide in the presence of oxygen. The sulfur dioxide is then separated from the water, nitrogen and other impurities and combined with the other split stream to form a reactor feed which is passed to a sulfur reaction zone for conversion to elemental sulfur. Due to the rejection of water, nitrogen and other impurities from the reactor inlet stream, a higher concentration of hydrogen sulfide and sulfur dioxide can be achieved in the sulfur reaction zone. As a result, the processes of the present invention can be used to increase the throughput of existing Claus process plants and reduce the size of new Claus process plants.
摘要翻译：公开了改进的方法，用于通过将硫化氢和二氧化硫转化成元素的硫和水，例如将硫化氢从进料流中除去。克劳斯过程。本发明的进料流分为两个分流，其中一个在氧的存在下被焚化形成二氧化硫。然后将二氧化硫与水，氮和其他杂质分离，并与另一个分流混合，形成反应器进料，将其送入硫反应区转化为元素硫。由于反应器入口流中排除了水，氮和其他杂质，所以在硫反应区可以实现更高浓度的硫化氢和二氧化硫。因此，本发明的方法可用于增加现有克劳斯工艺设备的生产量并减小新克劳斯工艺设备的尺寸。

4. 发明授权

US5269806A I-beam needle having true I-beam cross-section 失效
标题翻译：工字梁针具有真实的I型横截面
公开(公告)号：US5269806A
公开(公告)日：1993-12-14
申请号：US959198
申请日：1992-10-09
申请人： Timothy A. Sardelis , Paul J. Parisi , Lester E. Schaible , Lawrence P. Trozzo , Matthew L. Wolczynski
发明人： Timothy A. Sardelis , Paul J. Parisi , Lester E. Schaible , Lawrence P. Trozzo , Matthew L. Wolczynski
IPC分类号： A61B17/06 , A61B17/00
CPC分类号： A61B17/06066 , A61B2017/06028
摘要： A surgical needle having an I-beam configuration is disclosed. The surgical needle comprises an elongated member having an I-beam cross section wherein two opposed flange members are connected by a web member. The elongated member has a piercing point extending from its distal end. A cylindrical mounting section extends from the proximal end of the needle for receiving an end of a suture. The needle has increased resistance to bending and buckling when compared to conventional needles and does not have an increase in resistance or drag.

5. 发明授权

US5037120A Wheelchair manual drive mechanism 失效
标题翻译：轮椅手动驱动机构
公开(公告)号：US5037120A
公开(公告)日：1991-08-06
申请号：US457231
申请日：1989-12-26
申请人： Paul J. Parisi
发明人： Paul J. Parisi
IPC分类号： A61G5/02
CPC分类号： A61G5/022 , A61G5/026 , Y10S297/04 , Y10T74/19647 , Y10T74/19679
摘要： A hand operated propulsion drive mechanism for a wheelchair which has a driven gear (20) attached to the wheel of the wheelchair. A drive gear (26) is rotatably mounted to a support arm bracket (30) and intermeshes teeth with the driven gear. A hand crank (36) with a handle (40) allows a disabled person to propel the wheelchair by rotating the handle. A protective disc (38) covers the drive gear and also becomes part of the hand crank further allowing adjustment of the rotational radius of the drive using a slot (46) and removable mounting hardware. A second embodiment adds additional drive gears (26') to relocate the hand crank at different positions and the support arm bracket (30') is wide enough to cover the gears.
摘要翻译：一种用于轮椅的手动推进驱动机构，其具有附接到轮椅轮上的从动齿轮（20）。驱动齿轮（26）可旋转地安装到支撑臂支架（30）上并与从动齿轮啮合齿。具有手柄（40）的手柄（36）允许残疾人通过旋转手柄来推动轮椅。保护盘（38）覆盖驱动齿轮，并且也成为手柄的一部分，还允许使用槽（46）和可移除的安装硬件来调节驱动器的旋转半径。第二实施例增加了额外的驱动齿轮（26'）以将手柄在不同位置重新定位，并且支撑臂支架（30'）足够宽以覆盖齿轮。

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