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21. 发明授权

US5452582A Cryo-probe 失效
标题翻译：冷冻探针
公开(公告)号：US5452582A
公开(公告)日：1995-09-26
申请号：US271102
申请日：1994-07-06
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： A61B18/00 , A61B18/02 , F25B9/02 , F25B19/02 , F25D3/00
CPC分类号： F25B9/02 , A61B18/02 , A61B2018/00041 , A61B2018/00095 , A61B2018/00101 , A61B2018/0275 , A61B2018/0287 , F25B2309/021
摘要： In the cryo-probe, refrigerant is furnished from a high pressure, room temperature supply. Insulation of the refrigerant lines is unnecessary. Refrigerant flows through a pre-cooling heat exchanger in the probe and through a restrictor wherein the pressure drops. In accordance with the Joule-Thompson effect, the refrigerant expands and becomes cold and liquid is applied in the region of the cryo-tip to provide rapid cooling thereof. Expanded refrigerant gas at low pressure reverses direction and flows back from the cold tip in counterflow arrangement through the aforementioned heat exchanger to give a pre-cooling effect to the refrigerant incoming from the external supply. A second tube for conveying warm-up gas is located in the probe and extends to the cold tip. After cryosurgery is complete, the high pressure flow is stopped and warm gas is delivered to the tip in the probe at reduced pressure through the second tube from the same refrigerant supply as is used for cooling. Accordingly, the tip is rapidly warmed.
摘要翻译：在低温探针中，制冷剂由高压室温供应。不需要制冷剂管路的绝缘。制冷剂流过探针中的预冷热交换器，并通过压力降低的限流器。根据焦耳汤普森效应，制冷剂膨胀并变冷，在冷冻尖端的区域内施加液体以提供快速冷却。在低压下的膨胀制冷剂气体反向，并且通过上述热交换器以逆流排列的方式从冷端回流，从而向从外部供给的制冷剂提供预冷效果。用于输送预热气体的第二管位于探头中并延伸到冷端。在冷冻手术完成后，停止高压流动，并将暖气从与用于冷却的制冷剂供应相同的制冷剂供应通过第二管减压地输送到探针中的尖端。因此，尖端迅速加热。

22. 发明授权

US5337572A Cryogenic refrigerator with single stage compressor 失效
标题翻译：低温冰箱与单级压缩机
公开(公告)号：US5337572A
公开(公告)日：1994-08-16
申请号：US57708
申请日：1993-05-04
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F25B1/00 , F25B9/00 , F25B9/02 , F25B31/00
CPC分类号： F25B9/02 , F25B9/006 , F25B2400/12 , F25B31/004
摘要： A closed cycle refrigerating system for cryogenic temperatures using a single stage compressor with a refrigerant comprising a gas mixture. The refrigerating system includes a heat exchanger having a throttling orifice which is arranged to provide refrigeration, and a single stage oil lubricated compressor for compressing the refrigerant. The compressor is typically of the rolling piston type. The refrigerant is a mixture of at least one cryogenic gas having a normal boiling point below 120 degrees K and at least two other gases having normal boiling point temperatures below 300 degrees different from each other and from said one gas. There is also included means for cooling the compressed refrigerant and for circulating the cooled refrigerant to the heat exchanger and its throttling orifice and then back to the compressor. The system does not require any cascaded heat exchangers or intermediate phase separators.
摘要翻译：一种用于使用具有包含气体混合物的制冷剂的单级压缩机的用于低温温度的封闭循环制冷系统。制冷系统包括具有设置成提供制冷的节流孔的热交换器和用于压缩制冷剂的单级油润滑压缩机。压缩机通常是滚动活塞式。制冷剂是至少一种正常沸点低于120度K的低温气体和至少两种其他正常沸点温度低于300度的其它气体与所述一种气体的混合物。还包括用于冷却压缩的制冷剂并使冷却的制冷剂循环到热交换器及其节流孔然后返回压缩机的装置。该系统不需要任何级联的热交换器或中间相分离器。

23. 发明授权

US4430863A Apparatus and method for increasing the speed of a displacer-expander refrigerator 失效
标题翻译：用于提高置换器 - 膨胀机冰箱速度的装置和方法
公开(公告)号：US4430863A
公开(公告)日：1984-02-14
申请号：US385612
申请日：1982-06-07
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F25B9/14 , F25B9/00
CPC分类号： F25B9/14 , F25B2309/006 , Y10T137/86405 , Y10T137/86638
摘要： A method and apparatus for increasing the refrigeration capacity of a displacer-expander type cryogenic refrigerator pneumatically actuated by a rotary valve by increasing the number of ports of the rotary valve to increase reciprocating speed of the displacer without increasing speed of rotation of the valve.
摘要翻译：一种用于增加由旋转阀气动地驱动的置换器 - 膨胀器式低温制冷机的制冷能力的方法和装置，其通过增加旋转阀的端口数量以增加置换器的往复速度，而不增加阀的旋转速度。

24. 发明授权

US4283948A Cryogenic air sampler 失效
标题翻译：低温空气取样器
公开(公告)号：US4283948A
公开(公告)日：1981-08-18
申请号：US106218
申请日：1979-12-21
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： G01N1/22 , G01N1/24
CPC分类号： G01N1/24 , G01N2001/244
摘要： Environmental gases, e.g. air are collected in an apparatus wherein a sample bottle containing a metering orifice for admitting the gas is contained within and cooled by a bath of liquid cryogen thus creating a partial vacuum inside the bottle to draw gas into the bottle where it is condensed and stored. The apparatus includes a source of cryogenic refrigeration disposed in an evacuated space above the liquid cryogen to condense liquid cryogen boil-off. By combining evacuation and cryogenic refrigeration the sample bottle holder can be rapidly cooled to operating temperature.
摘要翻译：环境气体，例如空气被收集在装置中，其中容纳用于允许气体的计量孔的样品瓶容纳在液体冷冻剂浴中并由液体冷冻剂浴冷却，从而在瓶内产生部分真空以将气体吸入瓶中，在那里冷凝和储存气体。该装置包括设置在液体冷冻剂上方的抽空空间中的冷冻源，以冷凝液体冷冻剂蒸发。通过结合抽真空和低温冷冻，样品瓶架可以快速冷却至工作温度。

25. 发明授权

US4277949A Cryostat with serviceable refrigerator 失效
标题翻译：冷冻机配有可使用的冰箱
公开(公告)号：US4277949A
公开(公告)日：1981-07-14
申请号：US51462
申请日：1979-06-22
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F17C3/08 , F17C13/00 , F25B9/00 , F25D3/10 , F25D19/00 , F25J1/00 , F28D15/00
CPC分类号： F28D15/00 , F17C13/006 , F17C3/085 , F25B9/00 , F25D3/10 , F17C2203/0391 , F17C2203/0629 , F17C2203/0643 , F17C2203/0648 , F17C2205/0332 , F17C2221/017 , F17C2223/0161 , F17C2223/033 , F17C2227/036 , F17C2265/034 , F25D19/006 , Y10S505/897
摘要： A cryostat including a source of refrigeration disposed within an evacuated chamber containing a reservoir of liquified cryogen wherein refrigeration is directed to heat stations disposed in the access means to the reservoir to intercept heat leak into said reservoir and to recondense cryogen boil-off from said reservoir. Thermal convective couplings are used to cool the heat stations and to minimize heat leakage in the event the refrigeration source is disabled. Cryogen boil-off is condensed in an apparatus utilizing low thermal conductive conduits to direct the vapors to a refrigeration zone and return the condensed cryogen to the reservoir.
摘要翻译：一种低温恒温器，其包括设置在包含液化冷冻剂储存器的真空室内的制冷源，其中致冷被引导到设置在进入装置中的加热站到储存器，以拦截热量泄漏到所述储存器中并从所述储存器再冷凝冷冻剂蒸发。热对流联轴器用于冷却热站，并在制冷源被禁用的情况下最大限度地减少热量泄漏。在使用低导热管道的装置中将低温蒸发器冷凝以将蒸气引导到制冷区域并将冷凝的冷冻剂返回到储存器。

26. 发明授权

US4237699A Variable flow cryostat with dual orifice 失效
标题翻译：具有双孔的可变流量低温恒温器
公开(公告)号：US4237699A
公开(公告)日：1980-12-09
申请号：US041963
申请日：1979-05-23
申请人： Ralph C. Longsworth , Matthew G. Chalmers
发明人： Ralph C. Longsworth , Matthew G. Chalmers
IPC分类号： F25B9/02 , F25J1/00 , F25B19/00
CPC分类号： F25J1/0276 , F25B9/02 , F25B2309/022 , F25J2290/42
摘要： A cryostat for producing an inventory of a liquefied working fluid by expansion of the working fluid through an orifice, the cryostat including means to rapidly cool the cryostat to operating temperature and to maintain fluid flow at low temperature and high working fluid pressure to maintain maximum heat transfer between the working fluid and an object being cooled by the cryostat.
摘要翻译：一种低温恒温器，用于通过工作流体通过孔口膨胀来产生液化工作流体的库存，所述低温恒温器包括将低温恒温器快速冷却至工作温度并保持流体在低温和高工作流体压力下的流动以保持最大热量的装置在工作流体和被低温恒温器冷却的物体之间传递。

27. 发明授权

US4219588A Method for coating cryopumping apparatus 失效
标题翻译：低温泵装置的涂布方法
公开(公告)号：US4219588A
公开(公告)日：1980-08-26
申请号：US2830
申请日：1979-01-12
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F04B37/08 , F17C7/02
CPC分类号： F04B37/08
摘要： Cryopumping speed of nitrogen, helium, hydrogen and neon can be increased by omitting the chevron baffle in a conventional cryopump and preventing incident radiation of about 300.degree. K. from striking surfaces used to cryosorb helium, hydrogen and neon. An apparatus is disclosed utilizing three pumping surfaces created from open ended opposed nested cylinders. A radiation absorbent coating is placed on one of the surfaces to shield the helium, hydrogen and neon pumping surface. Refrigeration can be provided by a two-stage closed cycle cryogenic refrigerator.
摘要翻译：通过省略常规低温泵中的人字形挡板可以提高氮气，氦气，氢气和氖气的冷冻速度，并防止约300°K的入射辐射，用于冷冻氦气，氢气和氖气的冲击表面。公开了一种使用从开口相对的嵌套圆筒形成的三个泵送表面的装置。将辐射吸收涂层放置在其中一个表面上以屏蔽氦，氢和氖泵的表面。制冷可由两级闭式循环低温冰箱提供。

28. 发明授权

US07631505B2 Wearless valve for cryorefrigerator 有权
标题翻译：冷冻机用无齿阀
公开(公告)号：US07631505B2
公开(公告)日：2009-12-15
申请号：US10581962
申请日：2005-03-08
申请人： Eric Seitz , Jin Lin Gao , Ralph C. Longsworth , Mingyao Xu
发明人： Eric Seitz , Jin Lin Gao , Ralph C. Longsworth , Mingyao Xu
IPC分类号： F25B9/00 , F16K31/02 , F16K5/00
CPC分类号： F25B9/14 , F16K3/10 , F16K31/041 , F25B9/145 , F25B2309/006 , F25B2309/1408 , F25B2309/14181 , F25B2309/14241
摘要： An improved method of reducing wear dust and torque required to turn a multi-port rotary disc valve utilizes a thrust bearing to hold the valve seat and/or valve disc such that they are not in contact with each other, or have light contact each other.
摘要翻译：减少转动多端口旋转盘阀所需的磨损粉尘和扭矩的改进方法使用推力轴承来保持阀座和/或阀盘，使得它们不彼此接触或彼此相互接触。

29. 发明申请

US20090151803A1 HYBRID SPOOL VALVE FOR MULTI-PORT PULSE TUBE 有权
标题翻译：用于多口脉冲管的混合阀门
公开(公告)号：US20090151803A1
公开(公告)日：2009-06-18
申请号：US11719697
申请日：2005-01-13
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F15B9/00 , F15B9/08 , F16K11/06
CPC分类号： F25B9/145 , F16K31/041 , F25B9/10 , F25B2309/002 , F25B2309/006 , F25B2309/1408 , F25B2309/1411 , F25B2309/14181 , F25B2309/14241 , F25B2309/1427 , Y10T137/87032
摘要： The problems of reducing the torque required to turn the valve, eliminating wear dust, and extending the life of the valves in Gifford McMahon (G-M) type multi-port pulse tube refrigerators are solved by using a rotary spool valve having radial clearance to control flow to and from the regenerator, and using face seal ports on the end of the spool to control flow to and from the pulse tubes.
摘要翻译：通过使用具有径向游隙的旋转滑阀来解决吉福德·麦克马洪（GM）型多口脉冲管式冰箱中降低扭矩所需扭矩，消除磨损灰尘并延长阀门使用寿命的问题，以控制流量并且使用在线轴端部的面密封端口来控制流入和流出脉冲管的流量。

30. 发明申请

US20080011550A1 Horizontal bulk oil separator 有权
标题翻译：水平散装油分离器
公开(公告)号：US20080011550A1
公开(公告)日：2008-01-17
申请号：US11486414
申请日：2006-07-13
申请人： Stephen B. Dunn , Ralph C. Longsworth
发明人： Stephen B. Dunn , Ralph C. Longsworth
IPC分类号： F01M11/08
CPC分类号： F25B43/02
摘要： A high separation efficacy, compact, bulk oil separator oriented horizontally and used with a scroll-type oil-lubricated compressor unit adapted to compressing helium. The horizontal bulk oil separator contains an integral oil reservoir and removes more than 99.9% of the oil from the helium that exits. The bulk oil separator contains successive chambers where oil separates from the gas by impingement.
摘要翻译：水平分离的高分离效率，紧凑型体油分离器，与用于压缩氦气的涡旋式油润滑压缩机组一起使用。水平散装油分离器包含一个整体的储油器，并从出口的氦气中除去99.9％以上的油。主体油分离器包含连续的室，其中油通过冲击与气体分离。

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