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:
Dec. 04, 1979
Filed:
Dec. 08, 1977
Dean M Peterson, Littleton, CO (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A recorder using a carbon backed 'self-developing' dry silver recording medium which is guided over a recording and developing path includes a pair of rollers one of which is connected to a ground potential and the other to a positive potential with the electrically conducting carbon coated side of the recording medium arranged to contact both of the rollers to enable electrical current to pass through the carbon backing to generate the heat required to develop the recording thereon. A third roller is arranged to contact the recording medium on the recording side and to press the carbon coated side against a second location on the ground roller to provide a second current conducting path between the positive potential roller and the ground roller. The electrical current is controlled in accordance with the speed of the recording medium to insure a proper developing time relationship at different recording medium speeds.