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公开(公告)号：US12038214B2
公开(公告)日：2024-07-16
申请号：US17720362
申请日：2022-04-14
申请人： Global Cooling, Inc.
CPC分类号： F25B49/025 , F02G1/0435 , F02G1/045 , F02G1/06 , F25B9/14 , F25B30/02 , F25B2309/001 , F25B2500/06 , F25B2500/18 , F25B2600/01 , F25B2600/13 , F25B2700/2111
摘要： A method for increasing working gas flow rate through gas bearings of a free piston, gamma configured Stirling heat pump to avoid failure of the gas bearings while maintaining thermal cooling power. The Stirling heat pump lifts heat from a storage chamber and has pistons that are driven in reciprocation at an operating frequency by linear electric motors. A temperature control maintains a steady state storage chamber temperature by sensing storage chamber temperature and modulating piston amplitude. The invention comprises (a) driving the pistons with linear electric motors that are driven by a variable frequency, AC power source; (b) sensing the pistons' amplitude of reciprocation; and (c) if the sensed piston amplitude is less than a selected piston activation amplitude, increasing the frequency of the AC power source to increase the Stirling heat pump's operating frequency. That decreases thermal cooling power which causes the temperature control to increase piston amplitude.
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公开(公告)号：US11976864B2
公开(公告)日：2024-05-07
申请号：US17236701
申请日：2021-04-21
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
IPC分类号： F25B9/14
CPC分类号： F25B9/14 , F25B2309/1428
摘要： In a gamma free-piston Stirling cooler driven by linear electric motors, a motor operating frequency for consuming minimum electric power is detected and a different motor operating frequency that delivers maximum thermal cooling power is detected. The frequencies are detected by varying the operating frequency in small steps while sensing (1) the motor power input to maintain a steady temperature or (2) the thermal cooling power of the Stirling cooler. A mode detection routine detects whether the appropriate freezer operation is the electric power minimization mode or the thermal cooling power maximization mode based upon the current thermal conditions in the freezer. When the freezer is sufficiently cold, the pistons of the Stirling cooler are driven at the minimum electric power consumption frequency. When the temperature is, or is likely to become, too warm, the pistons of the Stirling cooler are driven at the maximum thermal cooling power frequency.
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3.发明申请公开(公告)号：US20190178558A1
公开(公告)日：2019-06-13
申请号：US15837504
申请日：2017-12-11
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz , Todd Richards
摘要： An auxiliary thermosiphon has an auxiliary refrigerant conduit with an auxiliary evaporation segment in thermally conductive connection to an interior wall of the freezer. The auxiliary refrigerant conduit contains an auxiliary refrigerant that is isolated from the primary refrigerant of the primary cooling apparatus. The auxiliary refrigerant conduit also extends upward to an auxiliary condensation segment of the auxiliary refrigerant conduit at an elevation above the auxiliary evaporation segment. A thermal bridge is in physical thermal contact with the auxiliary condensation segment and in physical thermal contact with a portion of a primary evaporation segment of the primary refrigeration apparatus. Heat is transported through the thermal bridge from the auxiliary thermosiphon to the primary refrigerant conduit and consequently to the primary refrigeration apparatus for removal from the freezer.
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公开(公告)号：US09587873B2
公开(公告)日：2017-03-07
申请号：US13778468
申请日：2013-02-27
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
CPC分类号： F25D11/00 , A01N1/0252 , F25B9/14 , F25B19/005 , F25B23/006 , F25B25/005 , F25B30/02 , F25B47/02 , F25B2400/01 , F25D11/04 , F25D16/00 , F25D25/04 , F25D31/006 , G01N1/42
摘要： An automated, ultra-low temperature freezer having multiple structural features that reduce heat transfer into the freezer, protect its internal mechanical devices against low temperature mechanical binding of their movements, allow defrosting and autoclaving as a result of only minimal changes to the conventional CO2 emergency backup system. A group of freezers are arranged so they can simultaneously provide an HVAC function. A vial management system allows biological samples or vials to be automatically placed in and recovered from the freezer and associates the temperature history with each sample or vial that it was subjected to during its storage.
摘要翻译： 具有多种结构特征的自动化超低温冷冻机，其具有减少热量传递到冷冻室中的功能，保护其内部机械装置抵抗其运动的低温机械结合，允许除霜和高压灭菌是由于传统二氧化碳紧急情况的最小变化 备份系统 一组冷冻柜被安排，可以同时提供HVAC功能。 小瓶管理系统允许将生物样品或小瓶自动放置在冷冻器中并从冷冻器中回收，并将温度历史与其在储存期间经受的每个样品或小瓶相关联。
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公开(公告)号：US10329822B2
公开(公告)日：2019-06-25
申请号：US15089810
申请日：2016-04-04
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
摘要： A door latch which provides leverage to the door in both the closing and opening operations of the latch's door handle. The door latch has a door axle attached to an edge of the door and a striker is attached to the cabinet. A latch pivoting component has a base bearing journaled to the door axle and a handle attached to the base bearing for manually rotating the base bearing about the door axle. A cam is attached to the base bearing and is engageable with the striker by rotation of the base bearing. The cam includes a closing cam segment and an opening cam segment. The opening cam segment engages and slides along the striker as the latch pivoting component is rotated in an opening direction of rotation. The closing cam segment engages and slides along the striker as the latch pivoting component is rotated in a closing direction of rotation.
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公开(公告)号：US10775091B2
公开(公告)日：2020-09-15
申请号：US15942679
申请日：2018-04-02
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
IPC分类号： F25D11/00 , A61L2/06 , F25D31/00 , G01N1/42 , F25B19/00 , F25B30/02 , F25B47/02 , F25D16/00 , A01N1/02 , F25B9/14 , F25B25/00 , F25D25/04 , F25D11/04 , F25B23/00
摘要： An automated, ultra-low temperature freezer having multiple structural features that reduce heat transfer into the freezer, protect its internal mechanical devices against low temperature mechanical binding of their movements, allow defrosting and autoclaving as a result of only minimal changes to the conventional CO2 emergency backup system. A group of freezers are arranged so they can simultaneously provide an HVAC function. A vial management system allows biological samples or vials to be automatically placed in and recovered from the freezer and associates the temperature history with each sample or vial that it was subjected to during its storage.
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公开(公告)号：US10718558B2
公开(公告)日：2020-07-21
申请号：US15837504
申请日：2017-12-11
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz , Todd Richards
摘要： An auxiliary thermosiphon has an auxiliary refrigerant conduit with an auxiliary evaporation segment in thermally conductive connection to an interior wall of the freezer. The auxiliary refrigerant conduit contains an auxiliary refrigerant that is isolated from the primary refrigerant of the primary cooling apparatus. The auxiliary refrigerant conduit also extends upward to an auxiliary condensation segment of the auxiliary refrigerant conduit at an elevation above the auxiliary evaporation segment. A thermal bridge is in physical thermal contact with the auxiliary condensation segment and in physical thermal contact with a portion of a primary evaporation segment of the primary refrigeration apparatus. Heat is transported through the thermal bridge from the auxiliary thermosiphon to the primary refrigerant conduit and consequently to the primary refrigeration apparatus for removal from the freezer.
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公开(公告)号：US20170059225A1
公开(公告)日：2017-03-02
申请号：US15351846
申请日：2016-11-15
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
CPC分类号： F25D11/00 , A01N1/0252 , F25B9/14 , F25B19/005 , F25B23/006 , F25B25/005 , F25B30/02 , F25B47/02 , F25B2400/01 , F25D11/04 , F25D16/00 , F25D25/04 , F25D31/006 , G01N1/42
摘要： An automated, ultra-low temperature freezer having multiple structural features that reduce heat transfer into the freezer, protect its internal mechanical devices against low temperature mechanical binding of their movements, allow defrosting and autoclaving as a result of only minimal changes to the conventional CO2 emergency backup system. A group of freezers are arranged so they can simultaneously provide an HVAC function. A vial management system allows biological samples or vials to be automatically placed in and recovered from the freezer and associates the temperature history with each sample or vial that it was subjected to during its storage.
摘要翻译： 具有多种结构特征的自动化超低温冷冻机，其具有减少热量传递到冷冻室中的功能，保护其内部机械装置抵抗其运动的低温机械结合，允许除霜和高压灭菌是由于传统二氧化碳紧急情况的最小变化 备份系统 一组冷冻柜被安排，可以同时提供HVAC功能。 小瓶管理系统允许将生物样品或小瓶自动放置在冷冻器中并从冷冻器中回收，并将温度历史与其在储存期间经受的每个样品或小瓶相关联。
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公开(公告)号：US10544978B2
公开(公告)日：2020-01-28
申请号：US15351846
申请日：2016-11-15
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
IPC分类号： F25D11/04 , F25B9/14 , F25D16/00 , F25D25/04 , F25D31/00 , G01N1/42 , F25D11/00 , F25B25/00 , A01N1/02 , F25B19/00 , F25B30/02 , F25B47/02 , F25B23/00
摘要： An automated, ultra-low temperature freezer having multiple structural features that reduce heat transfer into the freezer, protect its internal mechanical devices against low temperature mechanical binding of their movements, allow defrosting and autoclaving as a result of only minimal changes to the conventional CO2 emergency backup system. A group of freezers are arranged so they can simultaneously provide an HVAC function. A vial management system allows biological samples or vials to be automatically placed in and recovered from the freezer and associates the temperature history with each sample or vial that it was subjected to during its storage.
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公开(公告)号：US20170261238A1
公开(公告)日：2017-09-14
申请号：US15609376
申请日：2017-05-31
申请人： Global Cooling, Inc.
发明人： David M. Berchowitz
IPC分类号： F25B9/14
CPC分类号： F25B9/14 , F17C2201/0157 , F17C2201/056 , F17C2201/058 , F17C2203/0308 , F17C2203/0391 , F17C2223/0161 , F17C2225/0161 , F17C2250/032 , F17C2250/043 , F17C2250/0439 , F17C2250/0626 , F17C2265/034 , F17C2265/066 , F17C2270/0178
摘要： LNG, for use as a motor vehicle fuel, is stored in a manner that does not require massive tanks, eliminates evaporative loss and reduces refrigeration energy consumption. A Stirling cryocooler extends through a wall of a highly insulated, relatively low pressure container to its cold end located in the vapor phase above the liquid surface. The pressure or temperature of the LNG is sensed and applied to a feedback control that modulates the heat transfer rate of the Stirling cryocooler so that LNG vapor is liquefied at a rate to maintain a desired pressure and temperature within the container. Maintaining a superatmospheric pressure in the container reduces the energy consumption required for re-liquefaction of the LNG vapor. The apparatus is also usable for liquefaction of natural gas for refueling vehicles from the ubiquitous consumer level domestic gas distribution system.
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