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. 22, 1999
Filed:
Apr. 30, 1997
John Stephen Campbell, Florence, KY (US);
Charles Goldberg, Cincinnati, OH (US);
Hill-Rom, Inc., Batesville, IN (US);
Abstract
A radiant heater apparatus includes a heating element which generates radiant energy. The heating element has first and second terminals. The apparatus also includes an inner tube configured to surround the heating element. The inner tube includes first and second ends. The inner tube is substantially transmissive to radiant energy. The apparatus further includes an outer tube surrounding the inner tube. The outer tube has an inner surface, an outer surface, and first and second ends. The inner surface of the outer tube is absorptive to radiant energy, and the outer surface of the outer tube is emissive to radiant energy so that radiant energy from the heating element passing through the inner tube is absorbed and re-emitted from by outer tube.