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:
Jun. 25, 1985
Filed:
Mar. 12, 1984
Applicant:
Inventor:
James F Pollock, Maidenhead, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428137 ; 428138 ; 428166 ; 428172 ; 428178 ; 428285 ; 4283166 ; 4283191 ; 428913 ;
Abstract
A thermal insulation layer, suitable for use in a duvet, comprises a convection inhibiting structure and at least one surface with a low thermal emissivity. The structure may be a flexible cellular foam sheet or a web of fibrous material, while the low emissivity surface may be a coating on the sheet or on a thin flexible thermally insulating film. Perforations are provided through the foam sheet or the film to permit diffusion of water vapour through the layer, and the layer may include an additional web of fibrous material or feathers adjacent to the low emissivity surface.