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:
Sep. 04, 1990
Filed:
Sep. 09, 1988
Abstract
A positive temperature coefficient thermistor device for use in a heating apparatus includes a board-type positive temperature coefficient thermistor element and a first and a second radiator for radiation disposed adjacent a front and a rear surface of the thermistor element, respectively. Each of the first and second radiators has a pair of fitting flanges which are respectively arranged on a pair of opposed sides of each radiator. Such fitting flanges are oriented with their longitudinal ends at right angles to a flow direction of air to be heated by the positive temperature coefficient thermistor device. Corresponding fitting flanges of the first and second radiators are engaged with each other by a pair of pin members which are inserted between respective pairs of opposing surfaces of the facing flanges to hold the flanges in a fixed relation to each other. The thermistor element is contained in a space surrounded by the first and second radiators.