Color video signal reproducing apparatus
    42.
    发明授权
    Color video signal reproducing apparatus 失效
    彩色视频信号再现装置

    公开(公告)号:US4007485A

    公开(公告)日:1977-02-08

    申请号:US563517

    申请日:1975-03-31

    申请人: Nobuaki Sato

    发明人: Nobuaki Sato

    CPC分类号: H04N9/793

    摘要: Successive field intervals of a composite color television signal are respectively recorded on successive recording tracks which extend parallel to one another on a record medium such as a magnetic tape. During the reproduction of a color television signal in a conventional VTR (video tape recorder), successive field intervals of the color television signal are alternately reproduced from the successive record tracks by means of two signal reproducing heads which are switched alternately.A color video signal reproducing circuit has an automatic gain control circuit for controlling the output level thereof and a muting circuit by which operation of the automatic gain control circuit is arrested for a predetermined period at the commencement of each interval of the reproduced color video signal so as to prevent color flicker from appearing on a television monitor regardless of timing axis variations caused by undesirable jitter components produced by the speed relation between the tape transport or drive and the head rotation in the VTR.

    摘要翻译: 复合彩色电视信号的连续场间隔分别记录在诸如磁带的记录介质上彼此平行延伸的连续记录磁道上。 在传统的VTR(录像机)中再现彩色电视信号期间,通过交替切换的两个信号再现头,从连续的记录磁道交替再现彩色电视信号的连续的场间隔。

    Method of surface hardening
    43.
    发明授权
    Method of surface hardening 失效
    表面硬化方法

    公开(公告)号:US4000011A

    公开(公告)日:1976-12-28

    申请号:US287025

    申请日:1972-09-07

    CPC分类号: C21D5/00 Y10S148/902

    摘要: A method of surface hardening for forming a hardened layer of cemented carbide, including cementite, on a local surface area of cast iron by rapidly melting the local surface by means of a rapid melting process such as the electron bombardment melting process to form a molten pool thereon, then rapidly cooling the molten pool by the chilling effect of the non-molten portion of cast iron and finally finishing the cast iron having the hardened layer thus formed to a desired shape. To this end, the cast iron used contains therein one or a mixture of deoxidizing agents such as aluminum, magnesium and calcium.

    摘要翻译: 一种表面硬化的方法,用于通过快速熔化过程如电子轰击熔融过程快速熔化局部表面,在铸铁的局部表面积上形成硬质合金硬化层,包括渗碳体,以形成熔池 然后通过铸铁的非熔融部分的冷却效果快速冷却熔池,并最终将具有如此形成的硬化层的铸铁整理成所需的形状。 为此,所用的铸铁中含有一种或一种脱氧剂如铝,镁和钙的混合物。

    Process for producing ethylene/vinyl alcohol copolymer
    45.
    发明授权
    Process for producing ethylene/vinyl alcohol copolymer 有权
    生产乙烯/乙烯醇共聚物的方法

    公开(公告)号:US08350002B2

    公开(公告)日:2013-01-08

    申请号:US13496610

    申请日:2010-10-07

    IPC分类号: C08F6/00 D06P1/52

    摘要: A process is provided for producing an ethylene/vinyl alcohol copolymer by which impurities such as catalyst residue and by-products and solvent are removed to a high degree. A high-quality, homogeneous product can be efficiently produced by including a washing step including: introducing a paste containing an ethylene/vinyl alcohol copolymer and an alcohol into a washing tank; applying a shear force to the paste to knead the paste while contacting the paste with washing water so that a surface of the paste is repeatedly displaced by an inner part thereof; and discharging the alcohol to an outside of the tank together with the washing water to obtain a water-containing ethylene/vinyl alcohol copolymer composition having a small alcohol content.

    摘要翻译: 提供了用于制备乙烯/乙烯醇共聚物的方法,通过该方法可以高度去除诸如催化剂残余物和副产物和溶剂等杂质。 通过包括将含有乙烯/乙烯醇共聚物和醇的糊剂引入洗涤槽中的洗涤步骤可以有效地生产高品质均匀的产品; 在糊料与洗涤水接触的同时向糊料施加剪切力以捏合糊料,使得糊料的表面由其内部反复移位; 并与洗涤水一起将醇排出到罐的外部,得到具有小醇含量的含水乙烯/乙烯醇共聚物组合物。

    PROCESS FOR PRODUCING ETHYLENE/VINYL ALCOHOL COPOLYMER
    46.
    发明申请
    PROCESS FOR PRODUCING ETHYLENE/VINYL ALCOHOL COPOLYMER 有权
    生产乙烯/乙烯醇共聚物的方法

    公开(公告)号:US20120172564A1

    公开(公告)日:2012-07-05

    申请号:US13496610

    申请日:2010-10-07

    IPC分类号: C08F16/06

    摘要: A process is provided for producing an ethylene/vinyl alcohol copolymer by which impurities such as catalyst residue and by-products and solvent are removed to a high degree. A high-quality, homogeneous product can be efficiently produced by including a washing step including: introducing a paste containing an ethylene/vinyl alcohol copolymer and an alcohol into a washing tank; applying a shear force to the paste to knead the paste while contacting the paste with washing water so that a surface of the paste is repeatedly displaced by an inner part thereof; and discharging the alcohol to an outside of the tank together with the washing water to obtain a water-containing ethylene/vinyl alcohol copolymer composition having a small alcohol content.

    摘要翻译: 提供了用于制备乙烯/乙烯醇共聚物的方法,通过该方法可以高度去除诸如催化剂残余物和副产物和溶剂的杂质。 通过包括将含有乙烯/乙烯醇共聚物和醇的糊剂引入洗涤槽中的洗涤步骤可以有效地生产高品质均匀的产品; 在糊料与洗涤水接触的同时向糊料施加剪切力以捏合糊料,使得糊料的表面由其内部反复移位; 并与洗涤水一起将醇排出到罐的外部,得到具有小醇含量的含水乙烯/乙烯醇共聚物组合物。