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:
Aug. 26, 2003
Filed:
Oct. 24, 2002
James E. Ferris, Richardson, TX (US);
William J. Quest, Dallas, TX (US);
E.F. Products, Inc., Kaufman, TX (US);
Abstract
A refrigerant charging/pressure testing hose assembly meeting SAE standard J2196 is useable to both (1) check the pressure in a refrigerant circuit and, (2) if necessary, add refrigerant to the circuit. The assembly includes a length of refrigerant charging, hose having a quick disconnect coupler disposed at one end and connectable to a service fitting portion of the circuit, a piercing-type shutoff valve disposed at the other hose end and connectable to a refrigerant charging canister, a pressure gauge installed in a longitudinally intermediate portion of the hose, and a check valve installed in the hose between the shutoff valve and the pressure gauge and permitting flow through the hose only toward the quick coupler.