Patents Assigned to Cryodynamics, Inc.
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Publication number: 20240299210Abstract: A cold therapy apparatus includes a thermal body wrap with umbilical to a control unit with pump for circulating a thermal fluid to remove heat from a body. A coolant heat exchange assembly includes a thermal fluid reservoir and a coolant tank that has a heat exchanger inside, immersed in the coolant. The heat exchanger is coupled to the control unit to circulate the thermal fluid through the thermal body wrap. The coolant heat exchange assembly is removed from the control unit and placed in a cold environment to chill the coolant, and is then re-coupled during cold therapy.Type: ApplicationFiled: March 9, 2023Publication date: September 12, 2024Applicant: CryoDynamics, Inc.Inventor: Douglas R. Harsy
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Publication number: 20210386579Abstract: A cold therapy apparatus includes a thermal body wrap with umbilical to a control unit with pump for circulating a thermal fluid to remove heat from a body. A coolant heat exchange assembly includes a coolant tank that is filled with a coolant and has a heat exchanger inside that is immersed in the coolant. The heat exchanger is coupled to the control unit to circulate the thermal fluid through the thermal body wrap. The coolant heat exchange assembly is removed from the control unit and placed in a cold environment to chill the coolant, and is then re-coupled during cold therapy. The process is repeated form extended therapy periods.Type: ApplicationFiled: June 11, 2020Publication date: December 16, 2021Applicant: CryoDynamics, Inc.Inventor: Douglas R. Harsy
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Patent number: 4912932Abstract: A modified Stirling cycle cryogenic refrigerator having an improved unloader valve mechanism for bypassing the compressor cylinder for a short time during start-up in order to reduce the starting torque on the motor driving the pistons and when the drive motor is turned off in order to prevent the refrigerator from spontaneously running in reverse.Type: GrantFiled: September 14, 1987Date of Patent: April 3, 1990Assignee: Cryodynamics, Inc.Inventors: Stephen F. Malaker, Chester B. Pawelski
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Patent number: 4877434Abstract: A modified Stirling cycle cryogenic refrigerator having a cold head, compressor and expander cylinders connected by a channel, and a compressor piston and an expander piston reciprocally mounted in the respective cylinders. A thin-walled hollow, evacuated, cylinderical metal extender is mounted on the side of the expander piston close to the cold head for shielding the expander from the low temperatures of the working gas in the vicinity of the cold head.Type: GrantFiled: June 9, 1987Date of Patent: October 31, 1989Assignee: Cryodynamics, Inc.Inventor: Stephen F. Malaker
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Patent number: 4843826Abstract: A vehicle air conditioning system in which air or a working liquid is circulated through a heat exchanger mounted in intimate thermal contact with the cold head of a modified Stirling cycle refrigerator. The working liquid is circulated through a heat conductive tube to the location of the vehicle to be cooled. Second heat exchangers are connected to the tube at each of the locations and the air to be cooled is blown through the second heat exchangers. If air is circulated through the cold head mounted heat exchanger, the cooled air is ducted to the locations in the vehicle to be cooled.Type: GrantFiled: October 9, 1987Date of Patent: July 4, 1989Assignee: Cryodynamics, Inc.Inventor: Stephen F. Malaker
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Patent number: 4796430Abstract: Modified Stirling cycle refrigerators having a cam drive unit which is illustrated as being implemented either as a rotatable cylinder having a pair of circumferential camming grooves or as wobble plates having camming tracks on the periphery thereof. The cam drive unit drives the compressor and expander piston of the refrigerator through cam followers. Refrigerator embodiments having a plurality of compressor-expander piston pairs driven from a single cam drive are also disclosed.Type: GrantFiled: August 14, 1987Date of Patent: January 10, 1989Assignee: Cryodynamics, Inc.Inventors: Stephen F. Malaker, Alfred Gorawski