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:
Nov. 09, 1976
Filed:
Sep. 26, 1974
Applicant:
Inventors:
Assignees:
Ricoh Co., Ltd., Tokyo, JA;
Stanley Electric Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ; B08B / ;
U.S. Cl.
CPC ...
134-2 ; 29426 ; 113 / ; 134 17 ;
Abstract
To remove an old photoresponsive or photoconductive selenium layer from a drum of a copy machine as preparation for the vacuum evaporation of a new photoresponsive layer thereonto, the drum is immersed in a hot fluid such as water, steam or liquid or vapor trichloroethylene or perchloroethylene. Due to the softening of the photoresponsive layer and the difference between the coefficients of thermal expansion of the photoresponsive layer and the drum material, the photoresponsive layer may be subsequently easily physically removed from the drum.