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. 07, 2004
Filed:
Apr. 19, 2002
Hideo Tokonabe, Tokyo, JP;
Katsuhiko Umeda, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
The present invention is directed to cost-effectively provide a high-strength large vacuum heat-insulating panel with a honeycomb core of non-permeable independent cells by means of simplified instruments and method. One goal of the invention is that the core retains an original shape at its lateral ends from the beginning of a procedure of evacuating air into a vacuum condition till the end of panel bonding, and another is ensuring a long lasting air-tight sealing in the honeycomb core. The vacuum heat-insulating panel according to the invention includes a vacuum core element ( ) of non-permeable honeycomb structure and a surface element ( ) bonded thereto by fusing an air-permeable bonding element (woven cloth made of fibrous adhesive of thermoplastic resin or unwoven cloth of the fibrous adhesive) . The surface element has its edges bent to provide protection covers