US PATENT SUBCLASS 505 / 163
.~ Significant cryogenic refrigeration system having superconductor component as part of the system or having superconductor device or material to be cooled present therewith (e.g., Peltier effect device, etc.)

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

150  DF  HIGH TEMPERATURE (Tc GREATER THAN 30 K) DEVICES, SYSTEMS, APPARATUS, COM- PONENTS, OR STOCK, OR PROCESSES OF USING {26}
163.~ Significant cryogenic refrigeration system having superconductor component as part of the system or having superconductor device or material to be cooled present therewith (e.g., Peltier effect device, etc.)

DEFINITION

Classification: 505/163

Significant cryogenic refrigeration system having superconductor component as part of the system or having a

superconductor device or material to be cooled present therewith (e.g., Peltier effect device, etc.):

(under subclass 150) Significant refrigeration system or device containing a superconductor element (a) that operates as part of the system, such as for supplying electrical current or that participates directly in the cooling through a thermoelectric effect; or (b) that is present with the system as a device or material that is to be cooled; or process of using (a) or (b).

(1) Note. Merely reciting that a superconducting device or material is attached to a cryogenic refrigeration device or providing space or connection for flowing a cryogenic fluid will not be considered significant refrigeration structure unless structure is present that actually causes the refrigeration.

SEE OR SEARCH CLASS

62, Refrigeration, particularly

3.2+, for thermoelectric refrigeration device (e.g., Peltier effect device, etc.) and subclass 51.1 for cryostatic device.

174, Electricity: Conductors and Insulators, particularly

15.4+, and 125.1 for low temperature superconductors having cooling fluid feeding, circulating, or distributing means. 257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), particularly

716, for active solid-state devices utilizing cryogenic coolant.