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:
May. 09, 1989
Filed:
Jan. 21, 1988
Arthur Waugh, Winchester, MA (US);
Gary A Orbeck, Windham, NH (US);
BTU Engineering Corporation, North Billerica, MA (US);
Abstract
A high temperature electrical resistance heater in which an electrically resistive strip is supported so that the strip may freely expand and contract and substantially all of the strip may directly radiate to provide maximum heat transport therefrom. The strip is carried in a serpentine configuration by support blocks which are arranged in abutting relation in spaced, parallel rows. Each block includes a lower portion embedded in a ceramic base and an upper portion extending above the base. The upper portion includes a structural portion which encircles minor portions of the strip to carry it spaced above the base to allow substantially unimpeded radiation from the strip and free strip expansion. Anchors securely hold the support blocks embedded within the base.