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. 09, 1987
Filed:
Mar. 28, 1985
Applicant:
Inventors:
Yoshio Kishimoto, Hirakata, JP;
Hideho Shinoda, Yamatokoriyama, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
219212 ; 219505 ; 219528 ; 219549 ;
Abstract
In an electric warmer having a temperature sensor and a thermosensitive heater wire arranged in a body thereof, a thermal distance between the temperature sensor and the surface of the body is shorter than a thermal distance between the temperature sensor and the thermosensitive heater wire. The temperature of the thermosensitive heater wire is controlled to vary by a temperature sensing signal from the temperature sensor, thereby effecting comfortable warming of a user in response to the temperature of a thermal load formed by a contacting portion of the user's body.