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:
Dec. 18, 2007
Filed:
Jul. 03, 2002
Ichiro Onishi, Shiga, JP;
Toshiki Maeda, Kawanishi, JP;
Akira Yokoe, Otsu, JP;
Kazuyoshi Takeuchi, Kusatsu, JP;
Ichiro Onishi, Shiga, JP;
Toshiki Maeda, Kawanishi, JP;
Akira Yokoe, Otsu, JP;
Kazuyoshi Takeuchi, Kusatsu, JP;
Matsushita Refrigeration Company, Shiga, JP;
Abstract
A defrosting heater in a refrigerator with a flammable refrigerant sealed therein, including a first glass tube () having a heater wire () inside thereof, a plug () covering both end opening parts of the first glass tube () and a second glass tube (), a lead wire () piercing the plug () and connected to an end of the heater wire (), and a positioning plate () disposed on a connection part of the lead wire () with the heater wire (). Flame propagation can be prevented by setting the size of a space () formed by the plug () and the positioning plate () according to the sealing quantity of the flammable refrigerant and the surface temperature of the heater wire (), and an unstable state in a defrosting mode is prevented even when the flammable refrigerant leaks.