Patent · US Expired

Method of deforming vacuum heat insulation material, method of fixing vacuum heat insulation material, refrigeration, cold storage vessel, and heat insulation box body

US6651444B2 · kind B2 · utility

35Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 15, 2001
Grant dateNov 25, 2003
Priority date
Expiry dateAug 16, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/233
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of easily deforming a plate-shape vacuum insulation material and producing a smaller but highly effective insulation container, comprising steps of inserting a thermoplastic open-celled rigid foam as a core material into a packet composed of gas barrier film, evacuating and sealing the packet so as to produce a vacuum insulation material, heating and softening the vacuum insulation material so as to deform the same, and cooling the vacuum insulation material so as to cure the same, and also a freezing and refrigerating container having Peliter element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.