US3954568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroforming an endless flexible seamless xerographic belt
Assignee: Xerox Corp
•
Filing: 1974-08-08
•
Granted: 1976-05-04
•
Expires: 1994-08-08
Abstract
Abstract A method of forming a xerographic belt substrate is provided in which the conductive metal backing is an endless flexible seamless band of nickel. The substrate band is made by electroforming, using a cylindrical mandrel of aluminum with a thin coating of stainless steel, passivated nickel or chromium and an electroplating nickel solution. During the electroforming operation the mandrel is rotated about an anode disposed in the electroplating solution.
Inventors
- 👤 Donald G. DuPree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/04; G; G03; G03G; G03G5/00; G03G5/10; G03G5/102
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
73 words
A method of making an endless flexible seamless xerographic substrate belt which comprises forming a thin continuous layer of nickel of uniform thickness on the outer surface of a cylindrically shaped rotating mandrel by electrolytic deposition in a nickel containing bath, said mandrel constructed of aluminum having a thin outer layer of chromium, passivated nickel or alternatively of stainless steel and removing the resultant nickel belt from the mandrel by cooling said mandrel.
Claim 2
Independent Claim
73 words
A method of making an endless flexible seamless xerographic substrate belt which comprises forming a thin continuous layer of nickel of uniform thickness on the outer surface of a cylindrically shaped rotating mandrel by electrolytic deposition in a nickel containing bath, said mandrel constructed of aluminum having a thin outer layer of chromium, passivated nickel or alternatively of stainless steel and removing the resultant nickel belt from the mandrel by cooling said mandrel.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein the mandrel is untapered.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein the bath comprises nickel sulfamate.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the nickel layer deposited is about 0.003 to 0.010 inches thick.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein the mandrel has an outer later of chromium.
Claim 7
Dependent Claim
15 words
The method of claim 1 wherein the mandrel has an outer layer of stainless steel.
Claim 8
Dependent Claim
15 words
The method of claim 1 wherein the mandrel has an outer layer of passivated nickel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |