Patents Assigned to Clever Fellows Innovation Consortium
-
Patent number: 7628022Abstract: An acoustic cooling device is provided. A coldhead and an acoustic power source of the acoustic cooling device are separated by way of a long tube connecting them to enable the cold tip to be installed in a remote location where a traditional unitary system would not fit, would generate too much vibration, or would be otherwise undesirable. The dimensions of the tube and the relevant parameters of the acoustic power source are selected to keep the system resonant at the desired drive frequency (e.g., 60 Hz) and to minimize the impact of the long tube on the system efficiency and capacity.Type: GrantFiled: October 24, 2006Date of Patent: December 8, 2009Assignee: Clever Fellows Innovation Consortium, Inc.Inventors: Philip S. Spoor, John A. Corey
-
Patent number: 6927506Abstract: The present invention relates generally to reciprocating electromagnetic devices, and more particularly to a construction of a reciprocating electromagnetic device for reducing secondary losses in magnetically-permeable elements, but without compromising manufacturability as required in prior art. The device provides for shaped pole faces to reduce local magnetic flux density and/or interruptions of electrically-conductive paths in the planes of the laminated layers of the stationary element of the device.Type: GrantFiled: September 24, 2002Date of Patent: August 9, 2005Assignee: Clever Fellows Innovation ConsortiumInventor: John A. Corey
-
Patent number: 6841900Abstract: In a reciprocating device having a moving element, a stator and a flexing suspension for coupling the moving element and stator and for maintaining the moving element on axis, the flexing suspension comprising: at least one flexing element locating the stator relative to the moving element by directly engaging features of the flexing element to mating features of the stator.Type: GrantFiled: September 24, 2002Date of Patent: January 11, 2005Assignee: Clever Fellows Innovation ConsortiumInventor: John A. Corey
-
Patent number: 6604363Abstract: A method for matching an acoustic load and an acoustic driver in a resonant acoustic system, and the acoustic system so formed. The load and driver may be independently designed. The invention provides, inter alia, a matching volume positioned between the acoustic driver and load that is substantially greater than a stroke volume of the driver. The matching volume is sized such that, in combination with the moving mass, the characteristic stiffness of the acoustic driver and the characteristic load impedance, a resulting pressure wave produces an operating resonant frequency substantially equal to the preferred operating frequency of the load. Alternatively, or in addition thereto, a stroke volume of the acoustic driver can be adjusted.Type: GrantFiled: April 19, 2002Date of Patent: August 12, 2003Assignees: Clever Fellows Innovation Consortium, Mesoscopic DevicesInventors: John A. Corey, Jerry Martin
-
Patent number: 6578364Abstract: A mechanical resonator for a thermoacoustic device having a compressible fluid contained within a housing, the housing having a pair of heat exchangers and a thermodynamic medium therebetween. The resonator includes a member for mimicking dynamic conditions at a position of the housing; and a linear suspension element suspending the member in the housing. The mechanical resonator saves length and eliminates high-velocity flow losses. A transducer may also be mounted with the mechanical resonator to derive power in another form from the system, for example, electricity, or introduce power into the system. In combination, the transducer and mechanical resonator allow for cool-side driving of a thermoacoustic system.Type: GrantFiled: April 19, 2002Date of Patent: June 17, 2003Assignee: Clever Fellows Innovation Consortium, Inc.Inventor: John A. Corey
-
Patent number: 6492748Abstract: A linear suspension element having preloaded legs that reduce fretting and maximize stroke within allowable stress limits. Also, a reciprocator and suspension including the linear suspension element.Type: GrantFiled: June 9, 2000Date of Patent: December 10, 2002Assignee: Clever Fellows Innovation Consortium, Inc.Inventor: John A. Corey
-
Patent number: 6353987Abstract: A method of constructing a reciprocator and moving element for a reciprocator. Also, a method of producing a non-contacting alignment of relatively reciprocating elements.Type: GrantFiled: June 9, 2000Date of Patent: March 12, 2002Assignee: Clever Fellows Innovation Consortium, Inc.Inventor: John A. Corey
-
Patent number: 5389844Abstract: A linear electrodynamic machine is disclosed having non-axisymmetric, interdigitating interfaces between moving and fixed magnetic circuit elements. The moving magnet elements may be of permanent magnet or electromagnetic construction, and in one embodiment constitute low reluctance elements moving relative to fixed energizing and output coils. Magnetic elements on a reciprocating plunger couple to fixed elements of a magnetic circuit in an interdigitating manner. Alternators and motors with non-axisymmetric, interdigitating interfaces are disclosed.Type: GrantFiled: July 31, 1992Date of Patent: February 14, 1995Assignee: Clever Fellows Innovation Consortium, Inc.Inventors: George A. Yarr, John A. Corey