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1. 发明授权

US4878356A Storage tank scale for a refrigerant recovery system 失效
标题翻译：用于制冷剂回收系统的储罐秤
公开(公告)号：US4878356A
公开(公告)日：1989-11-07
申请号：US263887
申请日：1988-10-28
申请人： Robert J. Punches , Gary P. Murray , Roger D. Shirley
发明人： Robert J. Punches , Gary P. Murray , Roger D. Shirley
IPC分类号： F17C13/02 , F25B45/00 , G01G3/12 , G01G23/00
CPC分类号： F17C13/023 , F25B45/00 , G01G23/005 , G01G3/12 , F17C2201/0109 , F17C2201/032 , F17C2221/038 , F17C2250/036 , F17C2250/0421 , F17C2260/022 , F25B2345/002 , F25B2345/007
摘要： A refrigerant recovery system that includes a refrigerant storage container, means for withdrawing refrigerant from a refrigeration system to be serviced and feeding such refrigerant to the container for storage, and a scale supporting the container for sensing impending overfill of the container. The scale includes a beam horizontally rigidly cantilevered from a base. A switch is positioned adjacent to the cantilever-remote end of the beam, and is responsive to deflection of the beam to indicate impending overfill of the container and prevent or terminate operation of the refrigerant recovery system.
摘要翻译：一种制冷剂回收系统，包括制冷剂储存容器，用于从要维修的制冷系统中抽出制冷剂并将该制冷剂供给到容器用于储存的装置以及用于感测容器的即将过量填充的容器的秤。标尺包括从基座水平刚性悬臂梁的梁。开关位于梁的悬臂远端附近，并且响应于梁的偏转以指示容器的即将过度填充，并且防止或终止制冷剂回收系统的操作。

2. 发明授权

US5493869A Recovery of at least two different and incompatible refrigerant types 失效
标题翻译：回收至少两种不同和不相容的制冷剂类型
公开(公告)号：US5493869A
公开(公告)日：1996-02-27
申请号：US357929
申请日：1994-12-16
申请人： Roger D. Shirley , Gary P. Murray , Kenneth W. Manz
发明人： Roger D. Shirley , Gary P. Murray , Kenneth W. Manz
IPC分类号： F17C9/00 , F25B45/00
CPC分类号： B60H1/00585 , F17C9/00 , F25B45/00 , F17C2205/013 , F17C2205/0326 , F17C2205/0335 , F17C2205/0341 , F17C2221/038 , F17C2227/0135 , F17C2227/044 , F17C2250/032 , F17C2265/012 , F25B2345/002 , F25B2345/004
摘要： A system for recovering at least two different and incompatible types of refrigerant that includes a compressor having an inlet for connection through first and second parallel inlet paths to equipment under service, and an outlet for connection through first and second parallel outlet paths to refrigerant storage containers. The first inlet and outlet paths terminate in connector fittings of a first configuration, and the second inlet and outlet paths terminate in connector fittings of a second configuration different from the first. Solenoid valves are associated with the inlet and outlet paths, and are actuated alternately so that the inlet and outlet paths are not simultaneously connected to the compressor. The connector fittings are mounted on a panel that has a sliding door for selectively exposing either but not both sets of connector fittings. The chance of misconnection and mixing refrigerant types is thereby reduced.
摘要翻译：一种用于回收至少两种不同和不相容类型的制冷剂的系统，其包括压缩机，所述压缩机具有用于通过到正在使用的设备的第一和第二平行入口连接的入口，以及用于通过第一和第二平行出口路径连接到制冷剂储存容器。第一入口和出口路径终止于第一配置的连接器配件中，并且第二入口和出口路径终止于与第一配置不同的第二配置的连接器配件中。电磁阀与入口和出口路径相关联，并被交替地致动，使得入口和出口路径不同时连接到压缩机。连接器配件安装在具有滑动门的面板上，用于选择性地暴露两个连接器配件，而不是两组连接器配件。因此，减少了制冷剂类型的错误连接和混合的机会。

3. 发明授权

US08272228B2 Apparatus to clear oil from the hoses and front end of a recovery recharge machine 有权
标题翻译：从软管和恢复再充电机前端清除油的装置
公开(公告)号：US08272228B2
公开(公告)日：2012-09-25
申请号：US12248352
申请日：2008-10-09
申请人： Gary P. Murray , Mark McMasters , William Brown
发明人： Gary P. Murray , Mark McMasters , William Brown
IPC分类号： F25B45/00
CPC分类号： B60H1/00585 , F25B43/00 , F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/0052 , F25B2345/006 , F25B2400/18
摘要： A refrigerant recovery unit is provided that can recover and recharge refrigerant. The unit is further configured with a pair of service hoses and a refrigerant control circuit operable to receive and transport the refrigerant between the hoses and the storage vessel and to process the refrigerant to substantially remove contaminants from the refrigerant. A fluid connector is provided in fluid communication with the hoses to enable the refrigerant to flow between the hoses and to establish a closed loop through the refrigerant control circuit, and a controller is operatively connected to the refrigerant control circuit and configured to control a flow of the refrigerant through the refrigerant control circuit and through the fluid connector.
摘要翻译：提供一种制冷剂回收单元，其可以回收和补充制冷剂。该单元还配置有一对服务软管和制冷剂控制回路，其可操作以在软管和储存容器之间接收和运输制冷剂，并处理制冷剂以基本上从制冷剂中除去污染物。流体连接器设置成与软管流体连通，以使制冷剂能够在软管之间流动并且建立通过制冷剂控制电路的闭环，并且控制器可操作地连接到制冷剂控制电路并被配置成控制流体制冷剂通过制冷剂控制回路并通过流体连接器。

4. 发明授权

US5095713A Refrigerant handling system and method with multiple refrigerant capability 失效
标题翻译：具有多种制冷能力的制冷剂处理系统和方法
公开(公告)号：US5095713A
公开(公告)日：1992-03-17
申请号：US643339
申请日：1991-01-22
申请人： Gregg E. Laukhuf , Gary P. Murray
发明人： Gregg E. Laukhuf , Gary P. Murray
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/002
摘要： A refrigerant handling system that includes a compressor and a condenser, each having an inlet and an outlet, with the condenser inlet normally being connected to the compressor outlet so that refrigerant in vapor phase from the compressor is at least partially condensed in the condenser. To clear liquid refrigerant from the condenser, the compressor outlet is disconnected from the condenser and connected to a refrigerant storage container, and the condenser outlet is connected to the compressor inlet. The compressor is then operated to draw refrigerant in vapor phase from the condenser, and to feed such refrigerant to the refrigerant storage container bypassing the condenser. A gauge is coupled to the compressor inlet so that compressor operation may be terminated by the operator when refrigerant vapor pressure in the condenser drops below a preselected threshold level. Thus, the condenser is cleared of refrigerant, which is now stored in the refrigerant storage container. The handling system may then be reconnected in the normal manner for recharging and operation in connection with a differing type of refrigerant without contaminating the latter.
摘要翻译：一种制冷剂处理系统，包括压缩机和冷凝器，每个具有入口和出口，冷凝器入口通常连接到压缩机出口，使得来自压缩机的气相制冷剂在冷凝器中至少部分冷凝。为了从冷凝器清除液体制冷剂，压缩机出口与冷凝器断开连接并连接到制冷剂储存容器，冷凝器出口连接到压缩机入口。然后操作压缩机以从冷凝器中蒸发制冷剂，并将这种制冷剂供给到绕过冷凝器的制冷剂储存容器。压力表联接到压缩机入口，使得当冷凝器中的制冷剂蒸汽压力下降到预选阈值水平以下时，操作者可以终止压缩机操作。因此，冷凝器被清除了现在储存在制冷剂储存容器中的制冷剂。然后可以以正常的方式重新连接处理系统，以便与不同类型的制冷剂相关联地进行再充电和操作，而不会污染后者。

5. 发明授权

US6119475A Tank unload apparatus 有权
标题翻译：罐卸装置
公开(公告)号：US6119475A
公开(公告)日：2000-09-19
申请号：US272495
申请日：1999-03-19
申请人： Gary P. Murray , William C. Brown , Walter D. Murray
发明人： Gary P. Murray , William C. Brown , Walter D. Murray
IPC分类号： F25B45/00
CPC分类号： B60H1/00585 , F25B45/00 , F25B2345/0052 , F25B2345/006
摘要： A lift assembly which is coupled to a refrigerant service cart to raise and lock the supply tank of refrigerant off of a weight sensor, locking the tank in a raised position for transportation of the portable servicing cart. In a preferred embodiment, a fixed arm extends from the portable cart and is positioned at a location above the refrigerant tank. A movable connecting link extends from the arm and is coupled to the tank and is controlled by an over-center toggle with a control handle for raising and lowering the tank coupled to the link between a use position resting on the weight sensor and a transporting position engaging the fixed arm and locked thereto by the over-center toggle control.
摘要翻译：一种电梯组件，其联接到制冷剂服务车，以将制冷剂的供应罐升高并锁定在重量传感器之外，将所述罐锁定在用于便携式维修车的运输的升高位置。在优选实施例中，固定臂从便携式手推车延伸并且位于制冷剂罐上方的位置。可动连接连杆从臂延伸并且连接到油箱，并且由具有控制手柄的过中肘杆控制，用于升高和降低连接在重量传感器上的使用位置与运送位置之间的联接件接合固定臂并通过过中心的拨动控制将其锁定。

6. 发明授权

US5603223A Refrigerant handling with lubricant separation and draining 失效
标题翻译：具有润滑剂分离和排水的制冷剂处理
公开(公告)号：US5603223A
公开(公告)日：1997-02-18
申请号：US582147
申请日：1996-01-02
申请人： Walter D. Murray , Gary P. Murray , Kenneth W. Manz
发明人： Walter D. Murray , Gary P. Murray , Kenneth W. Manz
IPC分类号： F25B45/00 , F25B43/02
CPC分类号： F25B45/00 , F25B2345/002
摘要： In a refrigerant recovery system, a refrigerant compressor has an inlet for connection to a source of refrigerant to be recovered and an outlet for connection to a refrigerant storage container. A separator is connected in series with the compressor for separating lubricant from refrigerant either before or after passage of the refrigerant through the compressor. A valve or other suitable means is operatively connected between the inlet and outlet of the compressor for equalizing pressure across the compressor during non-operation of the compressor. A pressure sensor is coupled to the refrigerant recovery system and responsive to refrigerant pressure at the lubricant separator. A manual or automatic valve is coupled to a drain on the separator for draining lubricant from the separator during non-operation of the compressor when refrigerant pressure at the separator reaches a selected level during non-operation of the compressor.
摘要翻译：在制冷剂回收系统中，制冷剂压缩机具有用于连接到要回收的制冷剂源的入口和用于连接到制冷剂储存容器的出口。分离器与压缩机串联连接，用于在制冷剂通过压缩机之前或之后将润滑剂与制冷剂分离。阀或其他合适的装置可操作地连接在压缩机的入口和出口之间，用于在压缩机的非操作期间平衡压缩机两端的压力。压力传感器耦合到制冷剂回收系统并且响应润滑剂分离器处的制冷剂压力。手动或自动阀联接到分离器上的排水口，用于在压缩机的非操作期间从分离器排出润滑剂，当压缩机的非操作期间分离器的制冷剂压力达到选定的水平。

7. 发明授权

US4688388A Service station for refrigeration equipment 失效
标题翻译：制冷设备维修站
公开(公告)号：US4688388A
公开(公告)日：1987-08-25
申请号：US728589
申请日：1985-04-29
申请人： Ralph C. Lower , Kenneth W. Manz , Gary P. Murray
发明人： Ralph C. Lower , Kenneth W. Manz , Gary P. Murray
IPC分类号： B60H1/00 , F25B45/00 , F25B49/00
CPC分类号： F25B45/00 , B60H1/00585 , F25B2345/001 , F25B2345/003 , F25B2345/0052
摘要： Apparatus for service and recharge of refrigeration equipment, with particular application to automotive air conditioning equipment. A vacuum pump, and oil and refrigerant charge containers are housed within a portable enclosure and configured for selective connection by electrically operated solenoid valves to refrigeration equipment under service. The refrigerant and oil containers are carried by a scale which provides electrical outputs signals as a function of weight of refrigerant and oil remaining in the containers. A microprocessor-based controller receives the scale signals and control signals from an operator panel for automatically cycling through vacuum, oil charge and refrigerant charge stages in a programmed mode of operation. The microprocessor-based controller includes facility for operator programming of the vacuum time and oil and refrigerant charge quantities, and for self- or operator-implemented diagnostics. Operating conditions and stages are displayed at all times to the operator.
摘要翻译：用于制冷设备的服务和再充电设备，特别适用于汽车空调设备。真空泵和油和制冷剂填充容器被容纳在便携式外壳内，并且被配置用于通过电动电磁阀选择性地连接到正在使用的制冷设备。制冷剂和油容器由标尺承载，其提供电输出信号作为剩余在容器中的制冷剂和油的重量的函数。基于微处理器的控制器接收来自操作面板的刻度信号和控制信号，以在编程的操作模式下自动循环通过真空，油充电阶段和制冷剂充量阶段。基于微处理器的控制器包括用于操作员编程真空时间和油和制冷剂充注量的设备，以及用于自我或操作者实施的诊断。操作条件和阶段随时显示给操作人员。

8. 发明授权

US4631006A Compact vacuum pump 失效
标题翻译：紧凑型真空泵
公开(公告)号：US4631006A
公开(公告)日：1986-12-23
申请号：US703185
申请日：1985-02-19
申请人： Gary P. Murray
发明人： Gary P. Murray
IPC分类号： F04C23/00 , F04C25/02 , F04C29/08
CPC分类号： F04C23/008
摘要： The invention pertains to a lightweight and concise vaccum pump particularly suitable for servicing refrigeration systems. One end of a cylindrical electric motor casing is enclosed by a substantially cylindrical adapter upon which a pump assembly is mounted. The motor armature shaft extends through the adapter and the pump rotor is directly mounted thereon. A hollow shell affixed to the adapter encompasses the pump assembly defining a chamber thereabout which includes a lubrication sump. A synthetic plastic handle assembly attaches to the motor casing and includes a capacitor housing and a base is affixed to the lower side of the casing. Except for the handle and base the pump is of a substantially cylindrical configuration of a diameter similar to that of the motor casing, and the pump assembly includes lubrication and exhaust features which provide improved pumping conditions.
摘要翻译：本发明涉及一种特别适用于维修制冷系统的轻质简洁真空泵。圆柱形电动机壳体的一端由安装有泵组件的基本上圆柱形的适配器封闭。电机电枢轴延伸穿过适配器，泵转子直接安装在其上。固定在适配器上的中空壳体包括泵组件，其在其周围形成包括润滑油槽的腔室。合成塑料手柄组件连接到电动机壳体并且包括电容器壳体，并且底座固定到壳体的下侧。除了手柄和基座之外，泵具有与马达壳体类似的直径的大致圆柱形构造，并且泵组件包括提供改进的泵送条件的润滑和排气特征。

9. 发明授权

US4523897A Two stage vacuum pump 失效
标题翻译：两级真空泵
公开(公告)号：US4523897A
公开(公告)日：1985-06-18
申请号：US630351
申请日：1984-07-16
申请人： Ralph C. Lower , Gary P. Murray
发明人： Ralph C. Lower , Gary P. Murray
IPC分类号： F01C21/08 , F04C23/00 , F04B23/04 , F04C25/02
CPC分类号： F04C23/001 , F01C21/0809
摘要： The invention pertains to a two stage vacuum pump particularly suitable for servicing refrigeration systems wherein a pair of electrically driven rotors support outwardly movable vanes engaging the cylindrical circumference of pumping chambers in which the rotors are mounted. The efficient relationship of components produces a high capacity pump in a concise configuration, lateral sides of the rotors are recessed to produce rapid seating of the vanes, reduce hydraulic end loading of the second stage rotor and minimize friction. The vanes are offset from the associated rotor axis to allow greater displacement for a given chamber bore and rotor size, and advantageous frictional forces are produced to augment sealing between the vane tips and chamber surface. Further, the vane tips are shaped to optimize compression and reduce gas re-expansion, and the rotors of the two stages are rotationally phased to improve capacity and pumping characteristics.
摘要翻译：本发明涉及一种特别适用于维修制冷系统的两级真空泵，其中一对电动转子支承与其中安装有转子的泵送室的圆柱形圆周接合的向外可移动的叶片。组件的有效关系产生了一种简洁结构的高容量泵，转子的侧面是凹进的，以产生叶片的快速安置，减少了第二级转子的液压端负荷并使摩擦力最小化。叶片偏离关联的转子轴线，以允许给定的室孔和转子尺寸的较大位移，并且产生有利的摩擦力以增加叶片尖端和室表面之间的密封。此外，叶片尖端成形为优化压缩和减少气体再膨胀，并且两个阶段的转子被旋转地定位以改善容量和泵送特性。

10. 发明申请

US20090188263A1 Apparatus to Clear Oil from the Hoses and Front End of a Recovery Recharge Machine 有权
标题翻译：从恢复充电机的软管和前端清除油的装置
公开(公告)号：US20090188263A1
公开(公告)日：2009-07-30
申请号：US12248352
申请日：2008-10-09
申请人： Gary P. Murray , Mark McMasters , William Brown
发明人： Gary P. Murray , Mark McMasters , William Brown
IPC分类号： F25B45/00 , F25B47/00 , G05D7/00 , B60H1/32
CPC分类号： B60H1/00585 , F25B43/00 , F25B45/00 , F25B2345/001 , F25B2345/002 , F25B2345/0052 , F25B2345/006 , F25B2400/18
摘要： A refrigerant recovery unit is provided that can recover and recharge refrigerant. The unit is further configured with a pair of service hoses and a refrigerant control circuit operable to receive and transport the refrigerant between the hoses and the storage vessel and to process the refrigerant to substantially remove contaminants from the refrigerant. A fluid connector is provided in fluid communication with the hoses to enable the refrigerant to flow between the hoses and to establish a closed loop through the refrigerant control circuit, and a controller is operatively connected to the refrigerant control circuit and configured to control a flow of the refrigerant through the refrigerant control circuit and through the fluid connector.
摘要翻译：提供一种制冷剂回收单元，其可以回收和补充制冷剂。该单元还配置有一对服务软管和制冷剂控制回路，其可操作以在软管和储存容器之间接收和运输制冷剂，并处理制冷剂以基本上从制冷剂中除去污染物。流体连接器设置成与软管流体连通，以使制冷剂能够在软管之间流动并且建立通过制冷剂控制电路的闭环，并且控制器可操作地连接到制冷剂控制电路并被配置成控制流体制冷剂通过制冷剂控制回路并通过流体连接器。

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