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:
Jul. 04, 1989
Filed:
May. 16, 1988
Chiaki Kato, Osaka, JP;
Toshiyuki Hatta, Osaka, JP;
Akihiko Isomura, Osaka, JP;
Shinichi Toyooka, Osaka, JP;
Masaya Nishi, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
The invention provides an elastic roller for use in an apparatus for fixing a toner image, electrostatically formed on copy paper by passing the toner image between two rollers, comprising a roller core, a fusible fluororesin layer coated on the outside of the roller core, a porous fluororesin having porous portions affixed to the roller core through the fusible fluororesin layer, and a rubber impregnated into the porous portions of the porous fluororesin. It also provides a method for making an elastic roller including the steps of fusing a fusible fluororesin layer on the outside of a roller core or base; affixing a porous fluororesin having porous portions to the roller core through the fused fluororesin layer; filling the porous portions of the porous fluororesin with a rubber after fusing the porous fluororesin to the roller core; and hardening the rubber.