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    • 3. 发明授权
    • Method and equipment to perform porosimetric analyses
    • 进行孔隙率分析的方法和设备
    • US4644779A
    • 1987-02-24
    • US742636
    • 1985-06-10
    • Giorgio SistiPietro ItalianoErmete RivaBruno Tosi
    • Giorgio SistiPietro ItalianoErmete RivaBruno Tosi
    • G01N15/08
    • G01N15/0886
    • A method for performing porosimetric analyses and apparatus therefor are disclosed. In particular, a method for performing porosimetric anaylses by the so-called mercury method is disclosed, wherein volumetric variations of mercury placed in a vessel are recorded. These variations are due to mercury penetration into the pores of a solid sample placed in the vessel under the mercury pressure variations. In the method disclosed, additional porosimetric information is obtained by reducing the pressure from a maximum value as a predetermined function of time. For example, the pressure reduction can be at a constant rate. Simultaneously, volume variations of the mercury exiting the sample pores are detected as the pressure decreases. This additional detection, when performed in relation to and/or in addition to the traditional measurement during pressure increase, provides a pressure/volume mercury curve which gives further data on the porosimetric characteristics of the sample, in particular related to the shape of the pores in the sample.
    • 公开了一种进行孔隙率分析的方法及其装置。 特别地,公开了通过所谓的汞法进行孔隙率分析的方法,其中记录放置在容器中的汞的体积变化。 这些变化是由于汞在汞压力变化下渗透到容器中的固体样品的孔中。 在所公开的方法中,通过将压力从最大值减小为预定的时间函数来获得额外的孔隙度信息。 例如,减压可以是恒定的速率。 同时,当压力降低时,检测出离开样品孔的汞的体积变化。 当在压力增加期间相对于和/或除了传统测量之外执行该附加检测时,提供压力/体积汞曲线,其进一步提供样品的孔隙度特征的数据,特别是与孔的形状有关 在样品中。
    • 6. 发明授权
    • Gas chromatographic chamber
    • 气相色谱室
    • US4286456A
    • 1981-09-01
    • US65333
    • 1979-08-09
    • Giorgio SistiErmete RivaLearco Sala
    • Giorgio SistiErmete RivaLearco Sala
    • G01N30/54B01D53/02G01N30/30G01N31/08
    • B01D53/025G01N30/30G01N2030/3084
    • A gas chromatographic chamber in the form of an oven is disclosed, including an outer envelope including insulated walls defining the chromatographic chamber which can be made air tight, an inner housing section within that chamber for housing the chromatographic column, and including an air distributor to maintain the uniform distribution of air within the inner housing section, as well as a heater to heat the air therein, non-thermally insulating partitions within the chamber and spaced from the insulated wall to provide a pneumatically insulated space between the insulated walls and the inner housing section, and a fluid circulator to create the controlled circulation of fluid within the pneumatically insulated space to effect the temperature within the inner housing section.
    • 公开了一种烤箱形式的气相色谱室,其包括外封套,其包括限定可制成气密的色谱室的绝缘壁,用于容纳色谱柱的该室内的内壳部分,并包括空气分配器 保持内壳体部分内的空气的均匀分布,以及加热器以加热室内的空气,并在隔室内与隔热壁间隔开绝热隔板,以在绝缘壁和内壁之间提供气动绝缘的空间 壳体部分和流体循环器,以在气动隔离空间内产生流体的受控循环,以实现内壳体部分内的温度。
    • 7. 发明授权
    • Delivery device for continuous threads
    • 连续螺纹输送装置
    • US4653701A
    • 1987-03-31
    • US832494
    • 1986-02-21
    • Ermete Riva
    • Ermete Riva
    • D03D47/36B65H51/22D03D47/34B65H51/20
    • D03D47/367
    • A delivery device for continuous threads, having a storage member (5) to which the thread passes in circumferential direction and from which the thread is withdrawn over head, on which member a given adjustable number of thread turns is stored as storage quantity between point of feed and point of withdrawal, a light monitor which scans the outer surface of the storage member and controls the rotary drive for delivering the thread being provided in order to determine the turns of thread. In order to achieve a high output construction which is insensitive to disturbance, the storage member (5) has a light guide, the end surfaces (35', 35") of which are exposed towards the outer surface (6) of the storage member, one end surface (35') of each light guide facing the transmitter (29) of the light monitor and the other end surface (35"), staggered in circumferential direction of the storage member (5), facing the receiver (30) of the light monitor.
    • 一种用于连续螺纹的输送装置,具有存储构件(5),所述螺纹沿着圆周方向穿过所述存储构件,所述螺纹从所述存储构件沿着圆周方向通过,所述螺纹从所述螺纹在头部上被拉出,所述构件上给定可调节数量的螺纹转弯, 进给点和撤回点,一个光监视器,其扫描存储构件的外表面并控制用于传送螺纹的旋转驱动器,以便确定螺纹的转动。 为了实现对扰动不敏感的高输出结构,存储构件(5)具有导光体,其端面(35',35“)朝向储存器的外表面(6)暴露 构件,面对所述光监视器的发射器(29)的每个光导的一个端面(35')和所述另一端面(35“),在所述存储构件(5)的周向错开,面向所述接收器 30)。
    • 8. 发明授权
    • Porosimeter with detection by capacity variations
    • 孔隙率计通过容量变化检测
    • US4524605A
    • 1985-06-25
    • US545947
    • 1983-10-27
    • Pietro ItalianoErmete Riva
    • Pietro ItalianoErmete Riva
    • G01N15/08
    • G01N15/0886
    • The invention relates to a mercury porosimeter, of the type in which the quantity of mercury which has penetrated into the pores of the substance to be analyzed is determined by measuring capacity variations in a cylindrical condenser, the inner armature of which consists of the mercury present in the capillary of a penetrometer containing the substance to be analyzed, the penetrometer being housed inside an autoclave. The porosimeter according to the invention is characterized in that the outer armature of the condenser is fixed to the autoclave body, in that the condenser dielectric is formed by the penetrometer capillary and by the oil introduced into the autoclave to transmit pressure variations to mercury, and in that said oil has the same dielectric constant as the glass forming the penetrometer capillary.
    • 本发明涉及一种水银孔隙度计,其中渗透到待分析物质的孔隙中的汞的量通过测量圆柱形冷凝器的容量变化来确定,圆柱形冷凝器的内部电枢由存在的汞组成 在包含待分析物质的穿透计量器的毛细管中,穿透器容纳在高压釜内。 根据本发明的孔隙率计的特征在于,冷凝器的外部电枢固定到高压釜本体,因为冷凝器电介质由透度计毛细管和通过引入高压釜的油形成以将压力变化传递给汞,以及 因为所述油具有与形成透度计毛细管的玻璃相同的介电常数。
    • 9. 发明授权
    • Apparatus for endodontic treatment by circulation of enzymatic solutions in the pulp cavity and in the root canals
    • 通过在牙髓腔和根管中循环酶溶液进行牙髓治疗的装置
    • US07891977B2
    • 2011-02-22
    • US12063681
    • 2005-11-21
    • Ermete Riva
    • Ermete Riva
    • A61C5/02
    • A61C17/0208A61C1/0092A61C5/40
    • An apparatus is described, for endodontic treatment, whereby the operations for complete removal of connective, vascular and nervous tissues in the pulp cavity and in the root canals can be automatically carried out by chemical and pharmacological disintegration and by employing suitable enzymatic solutions such as trypsin at various degrees of dilution. The use of positive-displacement pumps guarantees that precise quantities of the chemical substances are used in the stages of emptying, disinfection, washing, drying and final filling of the root canals and of the pulp cavity. Temperature control of the fluids in circulation ensures that reaction times of the chemical substances used can be repeated at each cycle.
    • 描述了一种用于牙髓治疗的装置,其中可以通过化学和药理学分解以及通过使用合适的酶溶液如胰蛋白酶来自动进行在牙髓腔和根管中完全去除结缔组织,血管和神经组织的操作 在不同程度的稀释。 使用正排量泵保证在根管和纸浆腔的排空,消毒,洗涤,干燥和最终填充的阶段中使用精确量的化学物质。 循环流体的温度控制确保了每个循环都可以重复使用的化学物质的反应时间。