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1. 发明授权

US4699572A Reciprocatory piston and cylinder machine 失效
公开(公告)号：US4699572A
公开(公告)日：1987-10-13
申请号：US820585
申请日：1986-01-21
申请人： Guenter K. W. Balkau , Eckhard Bez , John L. Farrant
发明人： Guenter K. W. Balkau , Eckhard Bez , John L. Farrant
IPC分类号： F04B53/10 , F04B25/02 , F04B37/14 , F04B39/04 , F04B39/08 , F04B39/10 , F04B53/14 , F16J9/26 , F16J9/28 , F04B25/00 , F16J1/02
CPC分类号： F04B25/02 , F04B37/14 , F04B39/04 , F04B39/08 , F04B39/102 , Y10S417/01
摘要： A reciprocatory piston and cylinder machine particularly suitable for use as a vacuum pump includes a cylinder (17), a cylindrical piston (16) relatively slidably reciprocable within the cylinder (17), and means for substantially sealing the annular space between the piston (16) and cylinder (17) in lieu of oil or other liquid lubricant. The sealing means comprises a sleeve (102) of a low-friction material disposed under circumferential tension, and preferably also under longitudinal tension, on the cylindrical surface of the piston (16). Also disclosed is a reciprocatory differential piston and cylinder machine of particular prior construction having a one-way valve (42) in an exhaust port (30) ahead of a head portion (24) of the piston (16). The arrangement is such that, as the front face (28) of the piston head portion (24) approaches the cylinder end face (52), the front face (28) physically moves the one-way valve (42) so as to open the exhaust port (30).

2. 发明授权

US4790726A Reciprocatory piston and cylinder machine 失效
标题翻译：往复活塞和缸机
公开(公告)号：US4790726A
公开(公告)日：1988-12-13
申请号：US017405
申请日：1987-02-24
申请人： Guenter K. W. Balkau , Eckhard Bez , John L. Farrant
发明人： Guenter K. W. Balkau , Eckhard Bez , John L. Farrant
IPC分类号： F04B53/10 , F04B25/02 , F04B37/14 , F04B39/04 , F04B39/08 , F04B39/10 , F04B53/14 , F16J9/26 , F16J9/28 , F04B3/00
CPC分类号： F04B25/02 , F04B37/14 , F04B39/04 , F04B39/08 , F04B39/102 , Y10S417/01
摘要： A reciprocatory piston and cylinder machine particularly suitable for use as a vacuum pump includes a cylinder (17), a cylindrical piston (16) relatively slidably reciprocable within the cylinder (17), and means for substantially sealing the annular space between the piston (16) and cylinder (17) in lieu of oil or other liquid lubricant. The sealing means comprises a sleeve (102) of a low-friction material disposed under circumferential tension, and preferably also under longitudinal tension, on the cylindrical surface of the piston (16). Also disclosed is a reciprocatory piston and cylinder machine of particular prior construction having a one-way valve (42) in an exhaust port (30) ahead of a head portion (24) of the piston (16). The arrangement is such that, as the front face of the piston head portion (24) approaches the closed cylinder end (52), the piston head portion 24 physically moves the one-way valve (42) so as to open the exhaust port (30).
摘要翻译：特别适合用作真空泵的往复式活塞和气缸机器包括：气缸（17），在气缸（17）内相对可滑动地往复运动的圆柱形活塞（16）;以及用于基本上密封活塞（16））和气缸（17）代替油或其他液体润滑剂。密封装置包括在活塞（16）的圆柱形表面上设置在周向张力下，优选地也在纵向张力下的低摩擦材料的套筒（102）。还公开了特定的现有结构的往复式差动活塞和气缸机械，其具有在活塞（16）的头部（24）前方的排气口（30）中的单向阀（42）。该装置使得当活塞头部（24）的前面（28）接近气缸端面（52）时，前表面（28）物理地移动单向阀（42）以便打开排气口（30）。

3. 发明授权

US4560327A Porting and ducting arrangement 失效
标题翻译：移动和管道布置
公开(公告)号：US4560327A
公开(公告)日：1985-12-24
申请号：US561869
申请日：1983-12-16
申请人： Eckhard Bez , John L. Farrant
发明人： Eckhard Bez , John L. Farrant
IPC分类号： F01B31/00 , F04B27/00 , F04B37/10 , F04B37/14 , F04B39/12
CPC分类号： F04B37/10 , F01B31/00 , F04B39/122 , F04B39/125
摘要： A porting and ducting arrangement for a pair of adjacent hollow cylinders includes respective pluralities of passages extending longitudinally in the walls of the cylinders. Each passage is provided with a port in communication with the interior of the associated cylinder. Plural recesses in the end of the cylinders or in a cover are each in communication with a separate passage or group of passages when the cover is applied to the cylinders. There are a pair of such recesses thereby associated with each cylinder and at least one recess of each pair is in communication with a recess of the other pair via duct means in the cover. Gasket means is retained between the cylinders and the cover to seal each recess of each pair of recesses with respect to the other recess of the pair.
摘要翻译：用于一对相邻的中空圆柱的端口和管道装置包括在气缸的壁中纵向延伸的相应多个通道。每个通道设置有与相关联的气缸的内部连通的端口。当将盖应用于气缸时，在气缸的端部或盖中的多个凹槽各自与单独的通道或通道组连通。存在一对这样的凹部，从而与每个气缸相关联，并且每对中的至少一个凹部通过盖中的管道装置与另一对的凹部连通。垫圈装置保持在缸体和盖之间，以密封每对凹槽中相对于该对的另一个凹槽的每个凹部。

4. 发明授权

US4854825A Multi-stage vacuum pump 失效
标题翻译：多级真空泵
公开(公告)号：US4854825A
公开(公告)日：1989-08-08
申请号：US019736
申请日：1987-02-27
申请人： Eckhard Bez , John L. Farrant
发明人： Eckhard Bez , John L. Farrant
IPC分类号： F04B37/16 , F04B25/00 , F04B37/14
CPC分类号： F04B25/00 , F04B37/14 , Y10S417/01
摘要： A vacuum pump includes two pairs of piston and cylinder assemblies mounted on opposite sides of a crankshaft in a common plane with the gas inlets for the first and second cylinders of a first pair of piston and cylinder assemblies being connected to the device to be evacuated and the gas outlets thereof being connected to a common outlet having a spring biased one-way valve controlling the outlet and to a passage connected to the inlet of a third cylinder in said second pair of piston and cylinder assemblies. The gas outlet of the third cylinder is connected to the inlet of the fourth cylinder and the gas outlet of the fourth cylinder is connected to the common outlet through spring biased one-way valves. Each cylinder is provided with a cylinder head having a pair of one-way valves controlling inlet and outlet ports wherein the one-way valve controlling the gas inlet port acts as a torque reduction valve to reduce the amount of torque necessary to move the piston away from the cylinder head on the initial stroke of the piston. Each cylinder is provided with a liner in the form of a sleeve having an hard wear resistant oxide coating thereon and each piston is provided with a coating of filled polytetrafluorethylene for the purpose of reducing friction.

5. 发明授权

US5482443A Multistage vacuum pump 失效
标题翻译：多级真空泵
公开(公告)号：US5482443A
公开(公告)日：1996-01-09
申请号：US116609
申请日：1993-09-07
申请人： Eckhard Bez
发明人： Eckhard Bez
IPC分类号： F04B25/02 , F04B37/14 , F04B37/16 , F04B41/06 , F04B49/00 , F04B53/10 , F04B3/00
CPC分类号： F04B25/02 , F04B37/14 , F04B37/16 , F04B41/06 , F04B49/007 , F04B53/1022
摘要： A multistage vacuum pump is achieved by utilizing a single piston and cylinder assembly having opposite end portions with substantially equal diameters and an enlarged diameter central portion. One end of the cylinder is closed by a valve and a first stage pumping chamber is defined between the valve and the piston. The enlarged diameter portion of the piston has an axial extent less than the axial extent of the enlarged diameter portion of the cylinder to define second and third stage pumping chambers on opposite sides of the enlarged diameter portion of the piston. The three pumping chambers are interconnected by passage means to an inlet and outlet to provide a sequential reduction in pressure. A single drive unit may be connected to a plurality of pumping units for reciprocating the piston in each pumping unit.
摘要翻译：通过利用单个活塞和气缸组件来实现多级真空泵，所述单个活塞和气缸组件具有基本上相同的直径和扩径的中心部分的相对端部。气缸的一端由阀关闭，并且在阀和活塞之间限定第一级泵送室。活塞的扩大直径部分的轴向范围小于圆柱体的扩大直径部分的轴向长度，以在活塞的扩大直径部分的相对侧限定第二和第三级泵送室。三个泵送室通过通道装置连接到入口和出口，以提供连续的压力降低。单个驱动单元可以连接到多个泵送单元，用于使每个泵送单元中的活塞往复运动。

6. 发明授权

US07036792B2 Valve arrangement for a vacuum pump 失效
标题翻译：真空泵的阀门装置
公开(公告)号：US07036792B2
公开(公告)日：2006-05-02
申请号：US10671072
申请日：2003-09-24
申请人： Eckhard Bez , Stefan Zabeschek
发明人： Eckhard Bez , Stefan Zabeschek
IPC分类号： F16K25/00
CPC分类号： F04B53/102 , F04B39/102 , F16K17/0493
摘要： A valve arrangement for a vacuum pump includes a valve head displaceable substantially perpendicular to a flow direction of a fluid through the valve arrangement, a valve seat, and a valve spring for biasing the valve head into a flat abutment engagement with the valve seat, with the valve spring being formed of at least one substantially hollow body made of an elastomeric material.
摘要翻译：用于真空泵的阀装置包括可基本上垂直于通过阀装置的流体的流动方向移位的阀头，阀座和用于将阀头偏压到与阀座平坦的邻接接合的阀弹簧，阀弹簧由至少一个由弹性材料制成的基本中空的主体形成。

7. 发明授权

US4102608A Reciprocatory piston and cylinder machines 失效
标题翻译：往复式活塞和圆筒机
公开(公告)号：US4102608A
公开(公告)日：1978-07-25
申请号：US753382
申请日：1976-12-22
申请人： Guenter Karl Willi Balkau , Eckhard Bez , John Lascelles Farrant
发明人： Guenter Karl Willi Balkau , Eckhard Bez , John Lascelles Farrant
IPC分类号： F04B25/02 , F04B27/02 , F04B39/04 , F04B49/00
CPC分类号： F04B25/02 , B29C47/081 , F04B27/02 , F04B39/042 , Y10S277/91
摘要： Vacuum pump of reciprocating piston and cylinder type. Cylinder is stepped to have front large diameter portion and rear small diameter portion. Piston has enlarged head portion sliding in front portion of cylinder and rear portion sliding in rear portion of cylinder. Front end of cylinder is closed to form high vacuum pumping chamber swept by front face of piston head. Gas enters the high vacuum pumping chamber through side wall of cylinder and can be exhausted through exhaust valve in closed front end of cylinder. Rear annular face of piston head sweeps lower vacuum chamber in cylinder behind the piston head. A gas transfer passage extends through cylinder wall from front end of high vacuum pumping chamber to port in cylinder wall so as to transfer gas from high vacuum chamber to lower vacuum chamber when piston approaches end of forward stroke. Gas is transferred through transfer duct at pressures lower than required to open the exhaust valve.Also claimed are specific forms of piston ring permitting lubrication-free operation of piston in the cylinder.
摘要翻译：往复活塞和气缸类型的真空泵。气缸是阶梯式的，具有前大直径部分和后小直径部分。活塞在气缸的前部具有扩大的头部部分，在气缸的后部滑动后部。气缸前端关闭，形成由活塞头前表面扫过的高真空抽吸室。气体通过气缸的侧壁进入高真空泵室，可以通过汽缸封闭前端的排气阀排气。活塞头的后环形面在活塞头后面的气缸中扫出下真空室。气体输送通道从高真空抽吸室的前端延伸通过气缸壁到气缸壁中的端口，以便当活塞接近向前行程结束时将气体从高真空室传递到下部真空室。气体通过传输管道传递，压力低于打开排气阀所需的压力。

8. 发明授权

US08212565B2 NMR MAS rotor assembly with porous ceramic bearings 有权
标题翻译： NMR MAS转子组件与多孔陶瓷轴承
公开(公告)号：US08212565B2
公开(公告)日：2012-07-03
申请号：US12608334
申请日：2009-10-29
申请人： Eckhard Bez
发明人： Eckhard Bez
IPC分类号： G01V3/00
CPC分类号： G01R33/307
摘要： Each NMR rotor bearing in an NMR magic angle spinning assembly is constructed of a porous ceramic material and has no inlet channels or nozzles. Instead, pressurized gas is forced through pores in the bearing ceramic material from an annular groove at the bearing periphery to the central aperture. Since the pores are small and very numerous, the gas pressure is effectively balanced around the periphery of the central aperture. In addition, if contaminants block one or more pores during operation, the pores are so numerous that the balanced pressure can still be maintained in the central aperture, thereby preventing an imbalance that could destroy the rotor.
摘要翻译：在NMR魔角纺纱组件中的每个NMR转子轴承由多孔陶瓷材料构成，并且没有入口通道或喷嘴。相反，加压气体被迫通过轴承陶瓷材料中的孔从轴承周边的环形槽到中心孔。由于孔小而非常多，所以气体压力在中心孔的周围被有效平衡。此外，如果污染物在操作过程中堵塞一个或多个孔隙，则孔隙是如此之多，以至于平衡的压力仍然可以保持在中心孔中，从而防止可能破坏转子的不平衡。

9. 发明授权

US08098069B1 Adaptive closure with removable vent for sealing containers and method of use 有权
标题翻译：适用于封闭容器的可移除排气口和使用方法
公开(公告)号：US08098069B1
公开(公告)日：2012-01-17
申请号：US12425833
申请日：2009-04-17
申请人： Eckhard Bez , Melanie Rosay
发明人： Eckhard Bez , Melanie Rosay
IPC分类号： G01V3/00
CPC分类号： G01R33/307
摘要： A closed container having a single opening is sealed by a plug fabricated from a self-sealing elastomer. Before insertion, the plug is transfixed with a tube to allow air to escape as the plug is pushed into the container. The plug and tube are then inserted into a container. After the plug has been seated in the container, the tube is withdrawn, allowing the self-sealing elastomeric material to close the canal formed by the tube and to form a hermetic seal.
摘要翻译：具有单个开口的密闭容器由由自密封弹性体制成的塞子密封。在插入之前，插头用管子固定，以便当插头被推入容器时允许空气逸出。然后将插头和管插入容器中。在塞子被放置在容器中之后，管子被抽出，允许自密封弹性材料封闭由管形成的管道并形成气密密封。

10. 发明授权

US07226276B2 Multi-stage reciprocating vacuum pump and method of operating the same 失效
标题翻译：多级往复式真空泵及其运行方法
公开(公告)号：US07226276B2
公开(公告)日：2007-06-05
申请号：US10690112
申请日：2003-10-21
申请人： Eckhard Bez , Stefan Zabeschek
发明人： Eckhard Bez , Stefan Zabeschek
IPC分类号： F04B3/00 , F04B5/00 , F04B25/00
CPC分类号： F04B37/14 , F04B25/005
摘要： A multi-stage reciprocating vacuum pump includes first (2) and second (4) pump chambers located in the pump housing (1) and in which respective pistons (6, 8) reciprocate, first and second conduits (14, 20) for communicating, respectively outlet and suction (15, 16) sides of the first pump chamber (2) with the suction side (17) of the second pump chamber (4), and shut-off elements (18, 21; 25) associated with the first and second conduits (14, 20) for selectively communicating the first and second conduits (14, 20) with the suction side (17) of the second pump chamber (4); and the method of operating the pump includes manipulating the shut-off elements so that the first and second conduits (14, 20) are selectively connected to the suction side (17) of the second pump chamber (4).
摘要翻译：多级往复式真空泵包括位于泵壳体（1）中的第一泵（2）和第二泵室（4），其中相应的活塞（6,8）往复运动，第一和第二管道（14,20），分别与第二泵室（4）的吸入侧（17）的第一泵室（2）的出口和抽吸侧（15,16）以及与第二泵室（4）相关联的关闭元件（18,21; 25）第一和第二管道（14,20），用于选择性地将第一和第二管道（14,20）与第二泵室（4）的吸入侧（17）连通; 并且操作泵的方法包括操纵切断元件，使得第一和第二导管（14,20）选择性地连接到第二泵室（4）的吸入侧（17）。

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