US4085794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for fuser assembly cooling in an electrostatographic machine
Assignee: Xerox Corp
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Filing: 1976-06-16
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Granted: 1978-04-25
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Expires: 1996-06-16
Abstract
Abstract A heat transfer assembly is provided having heat transfer elements which contact end portions of a pressure roller of a fuser assembly. A heat transfer fluid is caused to pass over the elements in response to a signal to remove heat therefrom thereby cooling such portions of the pressure roller in contact with the elements.
Inventors
- 👤 Karl Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:10
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2039; G03G15/2042
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
A two roller fuser assembly having cooperating pressure and fusing rollers, the improvement comprising heat transfer means for selectively cooling an end portion of at least one of said pressure and fusing rollers.
Claim 2
Dependent Claim
33 words
A two roller fuser assembly having cooperating pressure and fusing rollers, the improvement comprising heat transfer means for selectively cooling an end portion of at least one of said pressure and fusing rollers.
Claim 3
Dependent Claim
22 words
The fuser assembly as defined in claim 1 wherein the heat transfer means selectively cools each end portion of said one roller.
Claim 4
Dependent Claim
20 words
The fuser assembly as defined in claim 1 wherein said heat transfer means cools end portions of said pressure roller.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US3762814A
Cited
US3816066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |