Modular conveyor construction and mounting brackets therefor
    121.
    发明授权
    Modular conveyor construction and mounting brackets therefor 失效
    模块化输送机结构和安装支架

    公开(公告)号:US4982835A

    公开(公告)日:1991-01-08

    申请号:US300027

    申请日:1989-01-23

    CPC classification number: B65G21/02 B65G21/2072

    Abstract: Brackets are provided that may be economically formed of only several pieces, and which pieces may be easily and mechanically assembled onto side framing of the conveyor system. Each bracket has a horizontal disposed piece and a vertically disposed piece which are arranged to lie adjacent and cross corresponding vertical and horizontal sides of the side framing, generally meeting across the lower corner and extending beyond the corresponding sides. Clamps cooperate with the brackets to form elongated slots, operable to allow the secure attachment of attachments or accessories usable with the conveyor system.

    Abstract translation: 提供的支架可以经济地由几个部件形成,并且哪些部件可以容易且机械地组装到输送机系统的侧框架上。 每个支架具有水平布置件和垂直布置的件,它们布置成邻近并跨越侧框架的相应的垂直和水平侧,并且跨越下角并延伸超过相应的侧面。 夹具与支架配合以形成细长的槽,可操作以允许可靠地连接可用于输送机系统的附件或附件。

    JFET active load input stage
    122.
    发明授权
    JFET active load input stage 失效
    JFET有源负载输入级

    公开(公告)号:US4687984A

    公开(公告)日:1987-08-18

    申请号:US615996

    申请日:1984-05-31

    Inventor: James R. Butler

    Abstract: An active load circuit for operational amplifiers and the like is described which provides an improved common mode rejection ratio and common mode voltage range, and alleviates transistor saturation and cut off problems during maximum slew rates. Drive currents from the operational amplifier or other circuit are transmitted directly through respective load resistors, thereby reducing voltage offsets which degrade common mode rejection ratio. At the same time the absolute voltage levels at the operational amplifier or like circuit are reduced, thereby increasing the common mode voltage range. A pair of active load transistors are supplied with current from current sources independent of the amplifier transistors, and deliver their respective currents to the same resistors which receive the amplifier currents. An output is taken from one of the load transistors without connecting to either of the amplifier transistors.

    Abstract translation: 描述了用于运算放大器等的有源负载电路,其提供改进的共模抑制比和共模电压范围,并且在最大转换速率期间缓解晶体管饱和并切断问题。 来自运算放大器或其他电路的驱动电流通过相应的负载电阻直接传输,从而减少降低共模抑制比的电压偏移。 同时,降低了运算放大器或类似电路的绝对电压电平,从而增加了共模电压范围。 一对有源负载晶体管由独立于放大器晶体管的电流源提供电流,并将它们各自的电流传递到接收放大器电流的相同电阻器。 输出从负载晶体管之一取出,而不连接到放大器晶体管中的任一个。

    Polymer modification system for vinylaromatic monomer production
apparatus
    123.
    发明授权
    Polymer modification system for vinylaromatic monomer production apparatus 失效
    乙烯基芳族单体生产设备的聚合物改性体系

    公开(公告)号:US4563517A

    公开(公告)日:1986-01-07

    申请号:US488970

    申请日:1983-04-13

    CPC classification number: C08J9/141 B01J19/002 C07C7/04 C08J2325/02

    Abstract: Disclosed is a process for modifying accumulated cross-linked polymer in an apparatus used for the production of a vinylaromatic compound, comprising optionally softening the polymer with an organic solvent; precipitating the polymer with a light, polar non-solvent for the polymer and expanding the softened polymer by bringing the softened polymer in contact with steam whereby the polymer is converted into a state which enables it to be more easily removed from the apparatus.

    Abstract translation: 公开了一种在用于制备乙烯基芳族化合物的装置中改性累积的交联聚合物的方法,包括任选地用有机溶剂软化聚合物; 用聚合物的轻极性非溶剂沉淀聚合物,并通过使软化的聚合物与蒸汽接触而使软化的聚合物膨胀,由此聚合物​​转化成使其更容易从设备中除去的状态。

    Process for enhancing recovery of oil from oil-bearing earth formations
    125.
    发明授权
    Process for enhancing recovery of oil from oil-bearing earth formations 失效
    提高含油地层油回收率的方法

    公开(公告)号:US4440650A

    公开(公告)日:1984-04-03

    申请号:US317213

    申请日:1981-11-02

    CPC classification number: C07C309/62 C09K8/584 Y10S507/937

    Abstract: A process for increasing recovery of oil from oil-bearing earth formations wherein H.sub.2 S from sour wellhead gas is oxidized to SO.sub.3 which in turn is reacted with a petroleum hydrocarbon mixture to produce a petroleum sulfonate. The petroleum sulfonate is incorporated into an oil recovery enhancing fluid and introduced through an injection well into an oil-bearing earth formation to displace oil toward a production well.

    Abstract translation: 一种从含油地层中提高油的回收率的方法,其中来自酸性井口气体的H 2 S被氧化成SO 3,SO 3又与石油烃混合物反应以产生石油磺酸盐。 将石油磺酸盐加入到采油增强液中,并通过注入井引入含油地层以将油置换成生产井。

    Process for Ethylbenzene Production
    128.
    发明申请
    Process for Ethylbenzene Production 有权
    乙苯生产工艺

    公开(公告)号:US20130231514A1

    公开(公告)日:2013-09-05

    申请号:US13868505

    申请日:2013-04-23

    Inventor: James R. Butler

    CPC classification number: C07C2/66 C07C2529/70 Y02P20/584 C07C15/073

    Abstract: A method of producing an alkylaromatic by the alkylation of an aromatic with an alkylating agent, such as producing ethylbenzene by an alkylation reaction of benzene, is disclosed. The method includes using an H-beta catalyst to minimize process upsets due to alkylation catalyst deactivation and the resulting catalyst regeneration or replacement. The H-beta catalyst can be used in a preliminary alkylation reactor that is located upstream of the primary alkylation reactor. The H-beta catalyst used in a preliminary alkylation reactor can reduce the deactivation of the catalyst in the primary alkylation reactor.

    Abstract translation: 公开了通过用烷基化剂烷基化烷基化制备烷基芳族化合物的方法,例如通过苯的烷基化反应生产乙苯。 该方法包括使用H-β催化剂来最小化由于烷基化催化剂失活和所得到的催化剂再生或置换导致的过程紊乱。 H-β催化剂可用于位于初级烷基化反应器上游的初步烷基化反应器。 在初步烷基化反应器中使用的H-β催化剂可以减少初级烷基化反应器中催化剂的失活。

Patent Agency Ranking