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:
Aug. 22, 1978
Filed:
Apr. 25, 1977
Henry Thomas Minden, Concord, MA (US);
Richard W Premo, Shrewsbury, MA (US);
Sperry Rand Corporation, New York, NY (US);
Abstract
A high efficiency fuser and pressure roll system for fixing xerographic toner particles to a carrier medium such as paper is presented having a helical resistance coil bonded at the active cylindrical surface of the fuser roll; the surface located heater is thermally isolated from the shaft mechanism supporting the fuser roll. Quick heating of the surface is achieved, along with diminished heat loss by heat conduction into the shaft and associated parts of the copier. The heater being integral with the fuser roll, heat is transferred directly and efficiently from the heater to the toner material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile