Controlled pyrolysis of cellulosic materials for production of chemicals
    2.
    发明授权
    Controlled pyrolysis of cellulosic materials for production of chemicals 失效
    用于生产化学品的纤维素材料的受控热解

    公开(公告)号:US3926947A

    公开(公告)日:1975-12-16

    申请号:US48010774

    申请日:1974-06-17

    Inventor: LIPSKA ANNE E

    CPC classification number: C07H19/01 C05B15/00

    Abstract: By treating paper, newsprint, and other waste cellulosic materials with an acidic fire retardant chemical the product spectrum formed during ensuing pyrolysis of the treated materials is reduced from approximately 60 compounds, none of which is produced in amounts justifying recovery, to a small number of principal products, including water, acetic acid, furfural, 5methyl-2-furfural and a compound produced in relatively large amounts which has been identified as 1,5-anhydro-3,4-dideoxyDelta 3- Beta -D-pyranosen-2-one. The latter compound has utility as a precursor to synthetic resins and surfactants and can be converted by oxidation to the novel compound, 1,5-anhydro-3,4dihydroxy- Delta 3- Beta -D-pyranosen-2-one.

    Abstract translation: 通过用酸性阻燃化学品处理纸,新闻纸和其他废纤维素材料,在处理过的材料的热解期间形成的产物光谱从约60种化合物中减少,其中没有一种是以合适的回收量产生的,少量 主要产品,包括水,乙酸,糠醛,5-甲基-2-糠醛和相对大量生产的化合物,已被鉴定为1,5-脱水-3,4-二脱氧-D-3β-β-D- 吡喃并-2-酮。 后一种化合物可用作合成树脂和表面活性剂的前体,并可通过氧化转化为新化合物1,5-脱水-3,4-二羟基-DTATA-β-D-吡喃松香-2-酮。

    Diazabicyclooctanes and diazabicycloheptanes
    3.
    发明授权
    Diazabicyclooctanes and diazabicycloheptanes 失效
    二氮杂双环辛烷和二氮杂双环庚烷

    公开(公告)号:US3905979A

    公开(公告)日:1975-09-16

    申请号:US46837074

    申请日:1974-05-09

    CPC classification number: C07D471/08 C07D207/16 C07D487/08

    Abstract: Twelve analogs of diethylcarbamazine as prepared by acylation of 3- and 8-methyl-3,8-diazabicyclo(3.2.1)octane, 2-methyl-2,5diazabicyclo(2.2.2)octane, and 2-methyl-2,5diazabicyclo(2.2.1)heptane with diethylcarbamyl chloride, ethyl chloroformate, ethyl isocyanate, and cyclohexanecarbonyl chloride. These compounds are formally derived from diethylcarbamazine in possessing two- or one-carbon bridges over the piperazine ring. The compounds have utility as antifilarial agents and as bronchodilators.

    Abstract translation: 通过酰化3-和8-甲基-3,8-二氮杂双环[3.2.1]辛烷,2-甲基-2,5-二氮杂双环[2.2.2]辛烷和2-甲基-2 ,5-二氮杂双环[2.2.1]庚烷与二乙基氨基甲酰氯,氯甲酸乙酯,异氰酸乙酯和环己烷碳酰氯。 这些化合物正式衍生自在哌嗪环上具有两个或一个碳桥的二乙基氨基甲脒。 这些化合物具有作为抗感冒剂和支气管扩张剂的作用。

    Apparatus for coupling an array of ultrasonic transducers to an ultrasonic compressional image field and scanning the image field
    4.
    发明授权
    Apparatus for coupling an array of ultrasonic transducers to an ultrasonic compressional image field and scanning the image field 失效
    将超声波传感器的阵列耦合到超声压缩图像场的装置和扫描图像场

    公开(公告)号:US3886490A

    公开(公告)日:1975-05-27

    申请号:US36387673

    申请日:1973-05-25

    Inventor: GREEN PHILIP S

    CPC classification number: G01H3/125

    Abstract: A compressional acoustic image field propagating in a fluid filled container is converted to electrical impulses which in turn provide a means for converting the incident compressional image field to a visual representation by locating a linear array of piezoelectric elements in intimate coupling contact with a thin, acoustically transparent window upon which the acoustic image field impinges. Coupling between the acoustic image field and the array of transducers is improved by providing a thin layer of coupling liquid on the outside of the window (the side in contact with the transducer array). The linear array effectively sweeps the entire compressional acoustic image field of interest mechanically moving the entire array back and forth (in a direction orthogonal to the linear array) across the window.

    Boron binding plant growth agents
    5.
    发明授权
    Boron binding plant growth agents 失效
    BORON BINDING植物生长剂

    公开(公告)号:US3849116A

    公开(公告)日:1974-11-19

    申请号:US16575071

    申请日:1971-07-23

    CPC classification number: A01N33/10

    Abstract: Herbicidal compositions including a benzazaboroxane precursor such as an aryl substituted N,N''-bis-(hydroxyalkyl)-2hydroxybenzylamine compound are disclosed. Increased herbicidal activity is observed with increasing oil solubility of the compound. Activity appears to proceed by binding or mining boron from the plant due to the ligand action of the compounds in forming benzazaboroxanes.

    Abstract translation: 公开了包括苯并氮杂异恶烷前体如芳基取代的N,N'-双 - (羟烷基)-2-羟基苄胺化合物的除草组合物。 随着化合物的油溶性增加,观察到增加的除草活性。 由于化合物在形成苯扎沙罗醇中的配体作用,活性似乎通过从植物中结合或开采硼来进行。

    Electromagnetic resonator with electronic tuning
    6.
    发明授权
    Electromagnetic resonator with electronic tuning 失效
    电子谐振器电磁谐振器

    公开(公告)号:US3811101A

    公开(公告)日:1974-05-14

    申请号:US34017273

    申请日:1973-03-12

    Inventor: KARP A

    CPC classification number: H03J5/246

    Abstract: In a waveguide resonator, either coaxial, or non-coaxial, there are inserted spaced irises which establish capacitances between the conductors of the waveguide structure at the location of each iris. These capacitances tune the resonance of the waveguide cavity, which would generally be used in a bandpass filter. Switch means are provided for each iris, for discretely altering the value of the capacitance established, whereby the resonator or filter may be tuned to a large number of different center frequencies.

    Abstract translation: 在同轴或非同轴的波导谐振器中,插入间隔的虹膜,其在每个虹膜位置处在波导结构的导体之间建立电容。 这些电容调谐波导腔的共振,这通常在带通滤波器中使用。 为每个虹膜提供开关装置,用于离散地改变建立的电容的值,由此谐振器或滤波器可以被调谐到大量不同的中心频率。

    Sub-surface radio surface wave launcher
    7.
    发明授权
    Sub-surface radio surface wave launcher 失效
    子表面无线电表面波发射器

    公开(公告)号:US3803616A

    公开(公告)日:1974-04-09

    申请号:US30795672

    申请日:1972-11-20

    Inventor: KOPF E WICKERSHAM A

    CPC classification number: H01Q1/04 H01Q19/09

    Abstract: A large increase in the signal strength of the surface wave transmitted from a buried or sub-surface antenna is achieved by shaping the interface region, at which the sub-surface wave is directed, into a cylindrical or spherical lens.

    Abstract translation: 通过将表面波导向的界面区域成形为圆柱形或球面透镜,可以实现从掩埋或副表面天线发射的表面波的信号强度的大幅增加。

    Preparation of pure glycolide
    8.
    发明授权
    Preparation of pure glycolide 失效
    纯甘油的制备

    公开(公告)号:US3763190A

    公开(公告)日:1973-10-02

    申请号:US3763190D

    申请日:1972-04-19

    CPC classification number: C07D319/12

    Abstract: GLYCOLIDE IS PREPARED IN HIGHLY PURE FORM FROM OHALOACETYLGLYCOLIC ACID SALTS BY ELIMINATION OF A MINERAL ACID SALT AND ATTENDANT CLOSURE OF THE RING. IN A TYPICAL PREPARATION, THE NOVEL COMPOUND O-CHLOROACETYLGLYCOLIC ACID IS CONVERTED TO A SALT AND GLYCOLIDE IS THEN FORMED AS THE SALT IS HEATED IN A VACUUM SUBLIMATION APPARATUS WHEREIN THE GLYCOLIDE CONDENSES ON A COOL SURFACE. THE GLYCOLIDE CAN BE POLYMERIZED TO FORM POLYGLYCOLIC ACID OF HIGH PURITY WHICH IS USEFUL IN THE FABRICATION OF SUTURES WHICH ARE ABSORBABLE IN BODY FLUIDS.

    Compound lens for converting the effect of large-area sonic transducer to one of small area
    9.
    发明授权
    Compound lens for converting the effect of large-area sonic transducer to one of small area 失效
    用于将大面积SONIC传感器转换为小面积的化合物镜头

    公开(公告)号:US3754208A

    公开(公告)日:1973-08-21

    申请号:US3754208D

    申请日:1972-02-03

    Inventor: EILERS G

    CPC classification number: G10K11/30

    Abstract: A compound lens structure for converting the response of a transducer of large lateral extent to one of significantly smaller dimensions employs a converting lens having a conical front surface in contact with the rear surface of an auxiliary hemispherical lens to allow spherical sonic waves emanating from or converging toward the point of contact to enter or leave the converting lens only through the area of contact. The rear surface of the converting lens is chosen to be a hyperbola of revolution in order that diverging waves entering through the area of contact be refracted into plane waves transmitted to the transducer. Space between the two lens is sealed and filled with a gas to enhance the masking effect of the conical surface by total reflection of waves entering that sealed space from the auxiliary lens.

    Abstract translation: 用于将大横向范围的换能器的响应转换成明显较小尺寸之一的复合透镜结构使用具有与辅助半球形透镜的后表面接触的锥形前表面的转换透镜,以允许发出或收敛的球形声波 接触点只能通过接触区进入或离开转换镜头。 转换透镜的后表面被选择为旋转的双曲线,以便通过接触区域进入的发散波被折射到传输到换能器的平面波中。 两个透镜之间的空间被密封并充满气体,以通过从辅助透镜进入该密封空间的波的全反射来增强锥形表面的掩蔽效果。

    Directional filter using meander lines
    10.
    发明授权
    Directional filter using meander lines 失效
    使用手电筒的方向滤波器

    公开(公告)号:US3742393A

    公开(公告)日:1973-06-26

    申请号:US3742393D

    申请日:1972-04-19

    Inventor: KARP A

    CPC classification number: H01P1/213 H01P5/18

    Abstract: A frequency-selective directional coupler is provided which comprises a fast-wave transmission line placed in proximity to a slow-wave transmission line. The fast wave line can be a waveguide, strip-line, or microstrip line which follows a fairly direct path between two points. The slow wave line can be a helix or a meander line.

Patent Agency Ranking