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:
Feb. 22, 2005
Filed:
Dec. 16, 2003
Applicants:
Yasushi Yamanaka, Kariya, JP;
Yoshitaka Tomatsu, Kariya, JP;
Inventors:
Yasushi Yamanaka, Kariya, JP;
Yoshitaka Tomatsu, Kariya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B041/04 ;
U.S. Cl.
CPC ...
Abstract
By the use of the suction pressure of a compressor, the pressure in back pressure chambersandare reduced to open a refrigerant inlet side and a refrigerant outlet side of an evaporator, and when the compressor is at rest, by the use of a first coil springand a second coil spring, the refrigerant inlet side and the refrigerant outlet side of the evaporatorare closed mechanically. Due to this, it is possible to minimize a refrigerant leak by the use of an inexpensive means.