US5470271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible belt reclaiming
Assignee: Xerox Corp
•
Filing: 1994-06-14
•
Granted: 1995-11-28
•
Expires: 2014-06-14
Abstract
Abstract A separation process including providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, the photoconductive layer including amorphous selenium or selenium alloy, transporting the substrate through an arcuate path having a small radius of curvature to apply stress to the photoconductive layer, and abrasively removing substantially all of the selenium or selenium alloy remaining on the substrate. This process may be carried out in an apparatus which includes at least one member having an arcuate surface with a small radius of curvature, means to transport the belt photoreceptor in an arcuate path over the arcuate surface, and abrasive means adapted to to contact and remove substantially all of the photoconductive layer from the substrate.
Inventors
- 👤 David R. Briggs
- 👤 Erwin E. Proseus
- 👤 Frances Tracey
- 👤 William G. Herbert
- 👤 Gary J. Bach
- 👤 Charles A. Hutchinson
- 👤 Alan L. Dudley
- 👤 Wayne F. Riker
- 👤 Willie McFadden, Jr.
- 👤 Peter J. Schmitt
- 👤 Henry T. Mastalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:12
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G5/00; G03G5/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
97 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate.
Claim 2
Dependent Claim
97 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate.
Claim 3
Dependent Claim
11 words
A process according to claim 1 wherein said substrate is nickel.
Claim 4
Dependent Claim
17 words
A process according to claim 1 wherein said photoconductive layer comprises an alloy of selenium and arsenic.
Claim 5
Dependent Claim
20 words
A process according to claim 1 wherein said photoconductive layer comprises an alloy of selenium and arsenic doped with halogen.
Claim 6
Dependent Claim
17 words
A process according to claim 1 wherein said photoconductive layer comprises an alloy of selenium and tellurium.
Claim 7
Dependent Claim
20 words
A process according to claim 1 wherein said radius of curvature is between about 0.5 cm and about 1.9 cm.
Claim 8
Dependent Claim
37 words
A process according to claim 1 including supporting said substrate on the outer surface of a small diameter roller as said substrate is transported through said arcuate path and thereafter imparting a reverse curve to said belt.
Claim 9
Dependent Claim
36 words
A process according to claim 7 including abrasively removing substantially all of said photoconductive layer remaining on said substrate at a point substantially opposite the side of said belt in contact with said small diameter roller.
Claim 10
Dependent Claim
23 words
A process according to claim 1 including abrasively removing substantially all of said photoconductive layer remaining on said substrate with a rotatable brush.
Claim 11
Dependent Claim
14 words
A process according to claim 9 wherein said rotatable brush has stiff metal bristles.
Claim 12
Dependent Claim
104 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate with a stream of carbon dioxide pellets.
Claim 13
Dependent Claim
104 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate with a stream of carbon dioxide pellets.
Claim 14
Dependent Claim
106 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature of between about 0.5 cm and about 1.9 cm to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate.
Claim 15
Dependent Claim
106 words
A process for removing a photoconductive layer from a substrate comprising providing a flexible belt photoreceptor comprising a photoconductive layer on the outer surface of a flexible metal belt substrate, said photoconductive layer comprising a selenium composition selected from the group consisting of amorphous selenium and selenium alloy, heating said belt photoreceptor until said photoconductive layer forms blisters on said flexible metal belt substrate, transporting said substrate through an arcuate path having a small radius of curvature of between about 0.5 cm and about 1.9 cm to apply stress to said photoconductive layer, and abrasively removing substantially all of said selenium composition remaining on said substrate.
References Cited (Backward Citations)
CA514173A
Cited
US3552848A
Cited
US3699726A
Cited
US3815295A
Cited
US3837815A
Cited
US3990907A
Cited
US3959934A
Cited
US4501621A
Cited
JPS5726179A
Cited
US4772527A
Cited
US5148639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-27 | 1999-05-29 | 1999-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-27 | 2003-05-29 | 2003-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-27 | 2007-05-29 | 2007-11-28 | $7700.00 | Window Closed / Lapsed |