The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 1991
Filed:
Oct. 26, 1989
Matthew M Skertic, Chatsworth, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A refrigerating device (34 or 46) is formed using a refrigerating unit (10) having a hot end (32) at which heat is transferred to a heat sink (22), a cold end (30) at which heat is transferred from a cooling load (28) to the unit (10), a first junction (14) of a material (16) carrying electrical current in a nonsuperconducting mode to a material (12) carrying electrical current in a superconducting mode nearest the hot end (32), a second junction (18) of a material (12) carrying electrical current in a superconducting mode to a material (20) carrying electrical current in a nonsuperconducting mode nearest the cold end (30), and an electrical current source (24) that forces a flow of electrical current in the direction from the first junction (14) toward the second junction (18). As the electrical current flows, heat is transferred from the cooling load (28) into the cold end (30), and expelled to the heat sink (22) at the hot end (32). Preferably, a number of the refrigerating units (10) are connected electrically in series, to form single stage (34) or multistage (46) refrigerating devices.