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:
Dec. 28, 1993
Filed:
May. 01, 1992
Edouard E Langlois, Rochester, NY (US);
Kathryn T Kehoe, Oklahoma City, OK (US);
Warren R Smith, Oklahoma City, OK (US);
Mark Muscato, Yukon, OK (US);
Barbara D Ceglinski, Oklahoma City, OK (US);
Alan C Kirchoff, Webster, NY (US);
Robert F Dunham, Yukon, OK (US);
Michael D Stair, Yukon, OK (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Apparatus for the continuous coating of charge transport solutions onto a substrate to form an electrophotographic imaging member, including a pump to a flow of a first highly doped charge transport solution and a pump to a flow of a second undoped or lowly doped charge transport solution at predetermined rates to a common junction at which the flows intermix into a common flow upon contacting each other; piping connecting the pumping means to the common junction; and mixing device associated with the junction for continuously mixing the common flow during its movement through the mixing device, the mixing device having a short spiral flow path of less than about 200 cm for the solutions sufficient to substantially complete mix the common flow during its movement through the mixing means.