Browse Prior Art Database

SHAFT SEAL FOR VACUUM COATERS

IP.com Disclosure Number: IPCOM000026773D
Original Publication Date: 1993-Aug-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 41K

Publishing Venue

Xerox Disclosure Journal

Abstract

In the manufacture of alloy photoreceptor device, a vacuum drum coating apparatus is used to sublime and uniformly deposit metal alloys on photoreceptor drum surfaces. Evacuation of the coating apparatus chamber requires high vacuum for extended periods of time. The evacuation time may vary due to leakage through seals, gaskets and out gasing of entrapped air. The evacuation time may be significantly reduced and coating process efficiency enhanced by adding a bleed hole or vent to a bearing shaft seal of the coating chamber apparatus.

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XEROX DISCLOSURE JOURNAL

SHAFT SEAL FOR VACUUM COATERS
John A. Appoloney
Frederick L. Kuhn

Proposed Classification US. C1.355/246
Int. C1. GOln 01/10

In the manufacture of alloy photoreceptor device, a vacuum drum coating apparatus is used to sublime and uniformly deposit metal alloys on photoreceptor drum surfaces. Evacuation of the coating apparatus chamber requires high vacuum for extended periods of time. The evacuation time may vary due to leakage through seals, gaskets and out gasing of entrapped air. The evacuation time may be significantly reduced and coating process efficiency enhanced by adding a bleed hole or vent to a bearing shaft seal of the coating chamber apparatus.

XEROX DISCLOSURB JOURNAL - Vol. 18, No. 4 July/August 1993 407

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408 XEROX DISCLOSURE JOURNAL - VOI. 18, NO. 4 JuIy/August 1993

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