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:
Mar. 07, 2000
Filed:
Mar. 30, 1999
George Anthony Higgins, Stourbridge, GB;
Ceramaspeed Limited, , GB;
Abstract
A radiant electric heater includes a base (2) of insulation material and a lamp-form heating element (3) supported adjacent to a surface of the base. The lamp-form heating element is in the form of a filament (4) inside an elongate envelope (5). The surface of the base (2) is locally depressed (dished or ramped) beneath the envelope (5). A corrugated ribbon heating element (7) is supported on edge relative to the surface of the base (2). A portion of the corrugated ribbon heating element (7) crosses the at least one lamp-form heating element (3) beneath the envelope (5) and substantially conforms to the contour of the locally depressed surface and is free from contact with the envelope (5).