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. 21, 2012
Filed:
Feb. 28, 2006
Scott C. Honkonen, Tucson, AZ (US);
Theodore B. Hill, San Diego, CA (US);
Charles C. Hill, San Diego, CA (US);
Graham Walker, Nanaimo, CA;
Ann Valentine Walker, Legal Representative, Nanaimo, CA;
Scott C. Honkonen, Tucson, AZ (US);
Theodore B. Hill, San Diego, CA (US);
Charles C. Hill, San Diego, CA (US);
Graham Walker, Nanaimo, CA;
Ann Valentine Walker, legal representative, Nanaimo, CA;
Respironics, Inc., Murrysville, PA (US);
Abstract
The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. The present invention involves a home liquid oxygen ambulatory system for supplying a portable supply of oxygen, where a portion of the gaseous oxygen output obtained from an oxygen concentrator is condensed into liquid oxygen. The system includes an oxygen concentrator which separates oxygen gas from the ambient air, a condenser in communication with the oxygen concentrator for receiving and liquefying the oxygen gas flow, a cryocooler associated with the condenser, and a first storage dewar in fluid communication with the condenser and adapted to store the oxygen liquefied by the condenser, the first storage dewar including means for transferring liquid oxygen from the first dewar to a second dewar for storing a quantity of oxygen suitable for moveable oxygen treatment.