Patent US3272831A successfully refreshed from Google Patents.
Patent US5239349A successfully refreshed from Google Patents.
US5239349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuser and a fuser roller cartridge having fusing roller skive
Assignee: Eastman Kodak Co
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Filing: 1992-01-31
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Granted: 1993-08-24
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Expires: 2012-01-31
Abstract
Abstract A fuser includes a pressure roller and a fusing roller and a skive for the fusing roller. The fusing roller is replaceable in a cartridge which has a housing which protects the fusing roller. The housing defines an access opening to the fusing roller and includes a skive for assisting in the separation of a receiving sheet from the fusing roller. The skive defines at least a portion of one edge of the access opening and is preferably molded integrally with the housing. A heat shield is positioned between the fusing roller and the housing to prevent the housing from becoming too hot to handle.
Inventors
- 👤 Linn C. Hoover
- 👤 Ralph E. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:28
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2064; G03G15/2017; G03G15/2032; G03G15/2035; G03G21/00; G03G21/16; G03G21/1661; G03G21/1685
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
78 words
A fuser for fixing a toner image to a receiving sheet, said fuser comprising: a pressure roller, a cartridge including, a housing having an access opening, said housing including a fusing roller skive integrally molded into said housing and defining at least a portion of one edge of said access opening, and a fusing roller mounted for rotation in said housing about an axis of rotation and positioned for engagement by said pressure roller through said access opening.
Claim 2
Dependent Claim
78 words
A fuser for fixing a toner image to a receiving sheet, said fuser comprising: a pressure roller, a cartridge including, a housing having an access opening, said housing including a fusing roller skive integrally molded into said housing and defining at least a portion of one edge of said access opening, and a fusing roller mounted for rotation in said housing about an axis of rotation and positioned for engagement by said pressure roller through said access opening.
Claim 3
Dependent Claim
114 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by said pressure roller through said access opening, said housing including a fusing roller skive integrally molded into said housing and positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits a nip between said fusing roller and a pressure roller.
Claim 4
Dependent Claim
114 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by said pressure roller through said access opening, said housing including a fusing roller skive integrally molded into said housing and positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits a nip between said fusing roller and a pressure roller.
Claim 5
Dependent Claim
82 words
A fuser for fixing toner to a receiving sheet, said fuser comprising: a pressure roller, a cartridge including, a housing having an access opening, said housing including a fusing roller skive defining at least a portion of one edge of said access opening, a fusing roller mounted for rotation in said housing about an axis of rotation and positioned for engagement by said pressure roller through said access opening, and a metal heat shield located between said fusing roller and said housing.
Claim 6
Dependent Claim
82 words
A fuser for fixing toner to a receiving sheet, said fuser comprising: a pressure roller, a cartridge including, a housing having an access opening, said housing including a fusing roller skive defining at least a portion of one edge of said access opening, a fusing roller mounted for rotation in said housing about an axis of rotation and positioned for engagement by said pressure roller through said access opening, and a metal heat shield located between said fusing roller and said housing.
Claim 7
Dependent Claim
20 words
A fuser according to claim 3 wherein said heat shield surrounds at least a major portion of said fusing roller.
Claim 8
Dependent Claim
141 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by the pressure roller through said access opening, said housing including a fusing roller skive positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits the nip between the fusing roller and the pressure roller, and a heat shield surrounding at least a major portion of said fusing roller and positioned between said fusing roller and said housing to prevent said housing from becoming too hot for handling.
Claim 9
Dependent Claim
141 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by the pressure roller through said access opening, said housing including a fusing roller skive positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits the nip between the fusing roller and the pressure roller, and a heat shield surrounding at least a major portion of said fusing roller and positioned between said fusing roller and said housing to prevent said housing from becoming too hot for handling.
Claim 10
Dependent Claim
21 words
A fusing roller cartridge according to claim 5 including means separating said heat shield from said housing by an air space.
Claim 11
Dependent Claim
136 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by the pressure roller through said access opening, said housing including a fusing roller skive positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits a nip between said fusing roller and the pressure roller, and a cover, spring urged to a position covering said access opening and movable to an uncovering position permitting engagement of said fusing roller by the pressure roller.
Claim 12
Dependent Claim
136 words
A fusing roller cartridge for insertion in a fuser which fuser includes a pressure roller and means for receiving said cartridge, said cartridge comprising: a housing having an access opening, a fusing roller mounted for rotation in said housing about an axis of rotation, said fusing roller being engageable by the pressure roller through said access opening, said housing including a fusing roller skive positioned to define at least a portion of an edge of said access opening and positioned in close proximity with said fusing roller to control movement of a receiving sheet as the sheet exits a nip between said fusing roller and the pressure roller, and a cover, spring urged to a position covering said access opening and movable to an uncovering position permitting engagement of said fusing roller by the pressure roller.
Claim 13
Dependent Claim
21 words
A fusing roller cartridge according to claim 7 including a metal heat shield located between said fusing roller and said housing.
Claim 14
Dependent Claim
50 words
A fusing roller cartridge according to claim 7 further including a latch for latching said cover in its uncovering position, resilient means for urging said cover to its covering position and wherein said cartridge housing includes a single molded piece which defines said access opening, said skive and said latch.
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) | 1996-08-23 | 1997-02-22 | 1997-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-23 | 2001-02-22 | 2001-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-23 | 2005-02-22 | 2005-08-24 | $7700.00 | Window Closed / Lapsed |