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:
Aug. 28, 2018
Filed:
Aug. 26, 2009
Christopher Douglas James Spooner, Bracknell, GB;
Greg Peter Wade Fixter, Hook, GB;
Paul Barrie Adams, Aldershot, GB;
Andrew Shaun Treen, Exeter, GB;
Christopher Douglas James Spooner, Bracknell, GB;
Greg Peter Wade Fixter, Hook, GB;
Paul Barrie Adams, Aldershot, GB;
Andrew Shaun Treen, Exeter, GB;
QINETIQ LIMITED, , GB;
Abstract
A thermally emissive apparatus () having an electro-thermal heating element () comprising a layer () of a first material having a first resistivity and a plurality of discrete regions () of a second material having a second resistivity substantially lower than that of the first material in electrical contact with the first material. The plurality of regions () of second material are arranged spatially so as to impart a predetermined effective sheet resistivity to the first layer (). A plurality of heating elements may be used having a common first layer () of first material, wherein the spatial arrangement of the regions () of second material within a first heating element are optionally different to that within a second heating element. In this configuration the first and second heating elements may emit infrared radiation () having different intensities. The apparatus () finds applications as a thermal target and as an electro-thermal ice protection device.