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. 13, 2007
Filed:
Oct. 28, 2004
Masaji Ozaki, Tokyo, JP;
Masaji Ozaki, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
The invention provides an improved drain valve for dew condensation in an air chiller unit mounted on an aircraft. The drain valveattached to a drain of a drain pan in an air chiller unit is equipped with a valve seat memberhaving an openingat the center and a valve memberdisposed to contact the lower surface of the valve seat member. The valve memberis made of thin silicon rubber, and armscreated by slits formed thereto support a valve meanswith extremely small spring constant. While the air chiller unit is operating, the valve meansis air tightly attached to the openingof the valve seat by negative pressure, closing the drain valve. When the operation stops and dew drops gather on the valve means, the valve meansis displaced by the weight and the valve is opened. When there are no dew drops, the valve is closed to prevent moisture from entering.