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US 4,064,933 AGranted
Developing roller apparatus for reproduction machines
AssigneeDietzgen Corporation
InventorGordon A. Schuman
Life of this patent
Estimating the term…
Abstract
An improved developing roller for use in the development of heat-sensitive copy sheets in a reproduction machine which comprises a hollow, thin-walled heat conducting rotatable cylinder or drum having a relatively small diameter heat pipe mounted on or embedded in its inner wall and extending substantially between the ends of said cylinder in order to provide and maintain a uniform temperature across the outer surface of said cylinder in use.
Claims2
A developing roller for use in the development of heat-sensitive copy sheets in a reproduction machine, said roller comprising:
- a hollow, thin-walled heat conducting cylinder rotatably mounted in the reproduction machine;
- a plurality of relatively small diameter heat pipes mounted along the inner wall of said cylinder between its ends;
- and
- a means for heating said cylinder and heat pipes located within the hollow interior of said cylinder.
1 more element
Dependencies are inferred from the claim text.