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:
Jul. 01, 2003
Filed:
Apr. 16, 2002
Applicant:
Inventors:
Paul Sarkisian, Boulder City, NV (US);
Lance Kirol, Morrisville, VT (US);
Uwe Rockenfeller, Boulder City, NV (US);
Assignee:
Rocky Research, Boulder City, NV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 1/500 ;
U.S. Cl.
CPC ...
F25B 1/500 ;
Abstract
An aqua-ammonia absorption heating and/or cooling apparatus uses a thermostatic expansion valve (TXV) and a temperature-sensing bulb for controlling refrigerant flow to the evaporator having a bulb charge composition comprising a mixture of propane and butane, or an ammonia-water mixture having over 70% ammonia, by weight.