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. 20, 2001
Filed:
Oct. 29, 1999
Takashi Masaki, Kanagawa-ken, JP;
Jun Futakuchiya, Kanagawa-ken, JP;
Kenzo Yasuda, Kanagawa-ken, JP;
Hidenori Ishiwata, Kanagawa-ken, JP;
Shinji Saito, Kanagawa-ken, JP;
Shinya Miyaji, Kanagawa-ken, JP;
Tsutomu Amakawa, Tokyo, JP;
Toshihiro Sugisawa, Tokyo, JP;
Other;
Abstract
In a heater unit, comprising a lower metallic base, an upper metallic base placed closely over an upper surface of said lower base, and a resistance heater wire received in a groove defined between opposing surfaces of said lower and upper bases, ceramic powder is filled in said groove to keep said heater wire at least away from a wall surface of said groove. Thus, the heater wire can be directly installed in the groove of the base without the intervention of a sheath pipe so that the heater wire can be bent in a desired dense pattern, and the heater unit can be heated both rapidly and uniformly. Also, the ceramic powder filled in the groove improves the heat transfer, and this even further enhances the these advantages of the present invention.