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:
May. 08, 1984
Filed:
Apr. 09, 1982
Phillip W Eckels, Penn Hills, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A cryogenic lead is described which comprises a plurality of tubular conductors arranged in parallel association and connected to two conductive blocks. Each tubular conductor is a laminar assembly of an inner conductive sleeve and an outer sleeve which acts as a thermal mass to absorb heat from the inner sleeve during thermal perturbations. A fluid refrigerant is directed through the tubular conductors. Each tubular conductor has at least one flow restrictor disposed within its inner sleeve to reduce the relative effect of changes of refrigerant viscosity on pressure drop within the tubular conductor and to block the transmission of thermal radiation through the tubular conductor.