Patent US3745972A successfully refreshed from Google Patents.
US3745972A
Expired / Lapsed
US
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Wicking apparatus
Assignee: Xerox Corp
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Filing: 1971-07-20
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Granted: 1973-07-17
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Expires: 1991-07-20
Abstract
Abstract Apparatus for lubricating the heated fuser roll in a heated pressure xerographic fusing system. The apparatus includes an applicator roll for providing a film of oil to a wick assembly having a Teflon layer contacting the fuser roll and a Nomex layer contacting the applicator roll where the Nomex layer is flame treated to provide high oil retention and prevent binding the drive of the applicator roll.
Inventors
- 👤 R Thettu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
19 words
Apparatus according to claim 1 wherein said layers are clamped together by retaining members to form a unitary assembly.
Claim 2
Dependent Claim
18 words
Apparatus according to claim 2 wherein the unitary assembly has tab members extending therefrom to facilitate handling thereof.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 2 wherein said top layer is made of Teflon and said lower layer is made of Nomex.
References Cited (Backward Citations)
US2754752A
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US2909150A
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US2937390A
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US3110612A
Cited
US3379171A
Cited
US3682738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |