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. 07, 1978
Filed:
Mar. 04, 1976
Johannes C Vercoulen, Venlo, NL;
Oce-van der Grinten, N.V., Venlo, NL;
Abstract
In copying apparatus utilizing an endless belt to hold electrostatic or powder images and carry them through a station for transfer to a receiving surface, the belt is arranged for movement through a path containing turns where it is engaged by rollers, with some of these rollers contacting its image bearing side, and each roller so contacting the belt is constituted by freely rotatable narrow roller members which contact it only in narrow margins along its opposite edges, so outside the surface regions that usually carry the images. A considerable length of the belt can be held in a close undulating path, as in a compact magazine, by a series of rollers arranged in parallel rows with each roller in one of these rows constituted by such narrow roller members engaging the image bearing side of the belt.