Title: Portable thermos
Application Number: 90102858 Application Date: 1990.05.17
Publication Number: 1056409 Publication Date: 1991.11.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A45F3/18,A47J41/02
Applicant(s) Name: Lu Weichun Address: 200050
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The invention discloses a portable thermos, it is composed of internal shell with vacuum heat insulation layer in its middle; external shell pressed with self-strengthened reinforing rings; stopper and cover. The internal shell and external shell are made of thin steel sheet with enamel surface. The assembling mode of the internal shell and the external shell is a welding structure jacket, so it not only has good insulation performance, but also is not liable to be broken to pieces, and lower cost and portable.
Time: 7