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. 27, 1984
Filed:
Apr. 19, 1982
Eduard Mair, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A solvent vapor toner image fixing device for use with electrostatic printing or copying devices having a well-shaped container through which a paper web is guided in a loop shaped manner is provided with improved apparatus for sealing the operational opening of the container against the emergence of solvent vapor. The sealing means comprises a wedge-shaped sealing strip disposed beneath the upper reversing drum which conducts the paper web out of the container. The sealing strip defines an air flow gap with the drum which permits an introduction of air flow into the upper end of the container from which it exits through a narrow gap formed between an upper edge container wall and the upper surface of the paper guide member, thus forming a pressure zone at the upper end of the container which resists passage of solvent vapor out of the container. The assembly further includes a discharge housing through which the paper web immediately passes upon leaving the container. The discharge housing is provided with a forced air flow in counterflow relationship to the movement of the paper web such that solvent residues are evaporated from the paper web and prevented from being conducted away from the fixing station on the recording medium.