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:
May. 08, 2007
Filed:
Jul. 23, 2002
Applicants:
Yukio Morikawa, Koka-gun, JP;
Ichiro Onishi, Koka-gun, JP;
Toshiki Maeda, Kawanishi, JP;
Inventors:
Assignee:
Matsushita Refrigeration Company, Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A defrost heater, in which the strength of an insertion force needed for inserting a second glass tube in a plug is specified to be smaller than that needed for inserting a first glass tube in a plug. Thereby, dispersion in the insertion force needed for attaching the plug with a double glass tube can be reduced, and the assembling efficiency is improved.