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:
Jan. 16, 1979
Filed:
Mar. 25, 1977
Applicant:
Inventors:
Assignee:
AGFA-Gevaert AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; B21B / ; G03G / ;
U.S. Cl.
CPC ...
355 / ; 29123 ;
Abstract
A drum assembly for an electrostatic copier having a stationary frame comprises a cylindrically tubular drum whose outer surface carries a light-sensitive coating. A pair of rings are snugly engaged with the outer ends of the drum and are mounted via roller bearings on the frame for rotation about a common ring axis. A support sleeve is non-rotatably fixed to the frame between the rings and within the drum and has an outer surface which normally lies out of contact with the drum and only serves to support the drum as it is being fitted into the machine, so as to protect its delicate light-sensitive coating. One of the rings can be removed from the frame so as to allow axial withdrawal of the drum.