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:
Apr. 13, 2004
Filed:
Dec. 26, 2001
Applicant:
Inventors:
Fred G. Schroeder, Grosse Ile, MI (US);
Eric W. Kesler, Northville, MI (US);
Zhongping Zeng, Haslett, MI (US);
Assignee:
Visteon Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/506 ; F25B 4/500 ;
U.S. Cl.
CPC ...
F16K 1/506 ; F25B 4/500 ;
Abstract
A service valve for a CO2 refrigerant based air conditioning system in a vehicle. The service valve includes a dynamic seal that is opened and closed during servicing of the air conditioning system. The dynamic seal provides for good overall sealing as well as good permeation resistance.