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:
Jun. 05, 1979
Filed:
Dec. 19, 1977
Craig Hosterman, Scottsdale, AZ (US);
Warren Rice, Tempe, AZ (US);
Natural Energy Systems, Tempe, AZ (US);
Abstract
A refrigerant fluid is entrained within a down pipe of a closed loop water flow circuit to compress the refrigerant fluid from a gaseous state to a liquid state. A separation chamber at the lower extremity of the down pipe separates the liquid refrigerant fluid from the water and the water is drawn off. The water flows upwardly through a return pipe and pump, through a pipe for reintroduction to the down pipe at the lower end thereof. The drawn off liquid refrigerant flows upwardly through a return pipe and through an expansion valve. The refrigerant fluid, converted to a mixture of vapor and liquid, called a 'quality mixture of the refrigerant' by the expansion valve, flows through an evaporator to cool a medium, such as air, passing therethrough. The refrigerant fluid, flowing from the evaporator and in a gaseous state at a higher temperature, is introduced to the upper end of the down pipe for re-entrainment in the water flowing into the down pipe.