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. 03, 1992
Filed:
May. 10, 1989
Mituharu Tomioka, Kashihara, JP;
Tadashi Yamazaki, Nara, JP;
Hiroo Oshima, Nara, JP;
Hajime Satoda, Nara, JP;
Mitsuhiro Imajima, Yamatokoriyama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Provided is a hot-air type heater including a heat generating means such as a burner heater from which hot air is produced and blown out the heater into a living room so as to warm up the inside of the room with a uniform temperature distribution even among various heating rate conditions. The hot-air heater includes at least of variable angle louvers which are vertically swingable, and a control means for swinging the louver in association with at least either a hot air flow rate at a hot air outlet opening of the heater or the heating value of the heat generating means, so that the louver is vertically swung in accordance with an output from the control means in order to minimize differences in temperature distribution in the room during operation of the heater under various heating conditions.