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:
Nov. 01, 1977
Filed:
Sep. 27, 1976
Applicant:
Inventors:
Thomas F Brandt, Swarthmore, PA (US);
Philip C Netzel, Milmont Park, PA (US);
Lennard Wharton, Winnetka, IL (US);
Assignee:
I-T-E Imperial Corporation, Spring House, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H01B / ; H02G / ;
U.S. Cl.
CPC ...
174 13 ; 138113 ; 174 / ; 174D / ;
Abstract
A corrugated flexible thin copper tube filled with sodium has a resilient flexible core along the axis thereof so arranged that it will contract and expand to take up the force of thermal expansion and contraction of the sodium. Since the coefficients of expansion of the sodium and copper are different, the absorption of this differential in force by the core prevents rupture of the copper tube and the formation of voids and hot spots within the copper tube.