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    Solid state interrupter
    17.
    发明授权
    Solid state interrupter 失效
    固态断路器

    公开(公告)号：US3919492A

    公开(公告)日：1975-11-11

    申请号：US39243173

    申请日：1973-08-29

    Applicant: BASIC INC

    Inventor： BORLAND WALTER G

    IPC: H04M19/02 ,  H04M1/26

    CPC classification number: H04M19/02

    Abstract: An interrupter for use in telephone signalling systems or the like is comprised entirely of solid state circuitry to perform switching functions to provide from a plurality of AC and DC input signals respective interrupted activating output signals at selected frequencies and for selected duty cycles during cyclical occurrence of each output signal. The solid state interrupter uses a unique binary counting sequence which minimizes the decoding logic required to attain the numerous interruption patterns in the interrupted activating output signals. The logic circuit includes a clock oscillator, J-K flip-flop binary counter, feedback logic, and decode output logic circuit portions including NAND and NOR gate configurations and the gating circuit includes transistorized circuits for selected switching of DC signals and for controlling solid state relays for selected switching of AC signals.

    Abstract translation: 用于电话信号系统等的中断器完全由固态电路组成，以执行切换功能，以从多个AC和DC输入信号提供相应的选定频率的中断的激活输出信号，并且在循环发生期间选择占空比 每个输出信号。 固态中断器使用唯一的二进制计数序列，其使得在中断的激活输出信号中获得大量中断模式所需的解码逻辑最小化。 逻辑电路包括时钟振荡器，JK触发器二进制计数器，反馈逻辑和解码输出逻辑电路部分，包括NAND和NOR门配置，并且门控电路包括晶体管电路，用于选择直流信号的切换和用于控制固态继电器 选择交流信号切换。

    Cyclical process for recovery of elemental sulfur from waste gases
    19.
    发明授权
    Cyclical process for recovery of elemental sulfur from waste gases 失效
    从废气中回收元素硫的循环过程

    公开(公告)号：US3784680A

    公开(公告)日：1974-01-08

    申请号：US3784680D

    申请日：1971-12-01

    Applicant: BASIC INC

    Inventor： STRONG H ,  HEIGHTS S ,  RADWAY J ,  COOK H

    IPC: B01D53/50 ,  B01D53/77 ,  C01B17/02 ,  C01B17/05 ,  C01B17/04

    CPC classification number: C01B17/05 ,  B01D53/507

    Abstract: A PROCESS FOR REMOVING SULFUR DIOXIDE (SO2) FROM GASES AND RECOVERING ELEMENTAL SULFUR COMPRISING SCRUBBING THE GASES WITH A SLURRY CONTAINING A METAL SULFIDE UNDER CONDITIONS TO REACT THE SULFUR DIOXIDE WITH THE SULFIDE TO FORM A PRECIPITATE WHICH IS PREDOMINANTLY METAL SULFITE AND ELEMETAL SULFUR. A PORTION OF THE SLURRY IS WITHDRAWN AND THE PRECIPITATE IS SEPARATED THEREFROM. THE REMAINING SLURRY IS RECYCLED FOR REACTION WITH ADDITIONAL SULFUR DIOXIDE AND THE PRECIPITATE IS HEATED UNDER CONDITIONS TO REMOVE WATER THEREFROM AND CONVERT ANY METAL THIOSULFATE THEREIN TO ADDITIONAL SULFITE AND ELEMENTAL SULFUR. SOME METAL SULFATE MAY BE PRESENT. THE ELEMENTAL SULFUR IS SEPARATED, AND THE SULFITE ARE THEN REDUCED TO THE SULFIDE WHICH IS RECYCLED TO THE SCRUBBING SLURRY. PREFERABLY, THE METAL SULFIDE IS AN ALKALI SULFIDE OR ALKALINE EARTH SULFIDE.

    Composition and method for the production of ceramically bonded basic refractories
    20.
    发明授权
    Composition and method for the production of ceramically bonded basic refractories 失效
    用于生产陶瓷粘结基础耐火材料的组合物和方法

    公开(公告)号：US3634114A

    公开(公告)日：1972-01-11

    申请号：US3634114D

    申请日：1969-01-24

    Applicant: BASIC INC

    Inventor： LUFCY GLENN H

    IPC: C04B35/03 ,  C04B35/04 ,  C04B35/06

    CPC classification number: C04B35/03

    Abstract: In the production of ceramically bonded basic refractories, basic refractory particles are bonded together with a temporary binder. The temporary binder includes a substantially completely neutralized pitch, which may be a tall oil pitch or a fatty acid pitch, and may also include cylinder lube stock and/or an asphalt binder oil.

    Abstract translation: 在陶瓷接合的基础耐火材料的生产中，将基本耐火材料颗粒与临时粘合剂粘结在一起。 临时粘合剂包括基本上完全中和的沥青，其可以是妥尔油沥青或脂肪酸沥青，并且还可以包括圆筒润滑油料和/或沥青粘合剂油。

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