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:
Mar. 03, 1998
Filed:
Nov. 13, 1996
James H Reeves, Richland, WA (US);
Other;
Abstract
A bi-directional Joule-Thomson device comprising two nearly identical heating containers which are connected via tubing to a cooling head. The cooling head is contained within a low temperature vacuum cryostat. Each of the small diameter tubes enters a chamber in the body of the cooling head. The chambers are connected by a small diameter orifice. Heat exchangers at ambient temperature and/or thermoelectric devices are used to cause the temperature of the gases entering and leaving the heating containers and cryostat to be at or near ambient. Within the cryostat, the small diameter tubes are thermally connected so that the cold gas flowing outward will cool the hotter incoming gas. The power for operation is supplied through two heating elements (one in each of the nearly identical heating vessels). This device will continue to perform at reduced power even if one of the heating elements fails.