专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5322954A Synthesis of 4-substituted phthalic anhydrides 失效
标题翻译： 4-取代邻苯二甲酸酐的合成
公开(公告)号：US5322954A
公开(公告)日：1994-06-21
申请号：US68042
申请日：1993-05-28
申请人： Karl W. Seper , Jeffrey S. Stults , Gary H. Olsen
发明人： Karl W. Seper , Jeffrey S. Stults , Gary H. Olsen
IPC分类号： C07D307/89
CPC分类号： C07D307/89
摘要： Disclosed is a method of making a 4-substituted phthalic anhydride. A halomaleic (including halofumaric anhydride (or the acid or ester thereof) is made by the reaction of-maleic anhydride with chlorine or bromine. The halomaleic anhydride is reacted with a conjugated diene to form a first cycloadduct having the formula ##STR1## The first cycloadduct is heated to eliminate HX and produce a second cycloadduct having the formula ##STR2## The second cyclo adduct is dehydrogenated to produce a 4substituted phthalic anhydride which has the formula ##STR3## where R.sub.1, R.sub.2, and R.sub.4 are preferably H and R.sub.3 is preferably Cl or F.
摘要翻译：公开了一种制备4-取代的邻苯二甲酸酐的方法。卤代马来酸酐（或其酸或酯）通过马来酸酐与氯或溴的反应制得，卤代马来酸酐与共轭二烯反应形成具有下式的第一个环加成物：将环加成产物加热以除去HX并产生具有下式的第二环加成物。第二环加合物被脱氢以产生具有式（IMAGE）的4-取代邻苯二甲酸酐，其中R 1，R 2和R 4优选为H且R 3优选为 Cl或F.

2. 发明授权

US06263925B1 Actuator for can filling apparatus 失效
标题翻译：执行机构可装灌装置
公开(公告)号：US06263925B1
公开(公告)日：2001-07-24
申请号：US09574594
申请日：2000-05-19
申请人： Gary H. Olsen
发明人： Gary H. Olsen
IPC分类号： B65B104
CPC分类号： B67C3/22
摘要： An actuator mechanism is provided for a device for automatically filling cans with a carbonated beverage. The filling apparatus is of a type wherein a valve is raised and lowered for the purpose of introduction of pressurized gas into each successive container and wherein raising and lowering is accomplished by rotation of a shaft having an end with operates to raise a valve member. The opposite end of the shaft has a lever arm extending therefrom which is depressed for the purpose for rotating the shaft. The invention provides an improved actuator mechanism supported on the apparatus and which has an extendible and retractable piston member actuated by a pneumatic cylinder for depressing the lever arm. The piston member supports a lever arm-engaging block having a surface for engaging the lever arm which block is convexly, arcuately contoured and has a width substantially equal to the length of the lever arm. Preferably the convex surface is asymmetrically contoured and a part of its surface which is adapted to engage and depress lever arm generally parallels the surface of the lever arm.
摘要翻译：提供了一种致动器机构，用于用碳酸饮料自动填充罐的装置。填充装置是一种类型，其中阀被升高和降低以便将加压气体引入每个连续的容器中，并且其中升降通过具有一端的轴的旋转来实现，以提升阀构件。轴的相对端具有从其延伸的杠杆臂，其为了旋转轴而被压下。本发明提供了一种改进的致动器机构，其被支撑在该装置上，并且具有由用于压下该杠杆臂的气动气缸致动的可伸缩活塞构件。活塞构件支撑杠杆臂接合块，其具有用于接合杠杆臂的表面，所述杠杆臂的凸起，弓形轮廓并且具有基本上等于杠杆臂的长度的宽度。优选地，凸形表面是不对称的轮廓，并且其表面的适于接合和按压杠杆臂的一部分大致平行于杠杆臂的表面。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式