US4043747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure heat fixing device
Assignee: Xerox Ltd
•
Filing: 1976-09-27
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Granted: 1977-08-23
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Expires: 1996-09-27
Abstract
Abstract A pressure heat fixing device consisting of a pair of heated fixing rollers rotating in pressure contact with one another and a temperature means supported to contact with the surface of the heated fixing roller, characterized by the provision of a suitable driving means adapted to reciprocatingly displace the said temperature detecting means along with and parallel to the axis of the heated fixing roller.
Inventors
- 👤 Masuji Ogiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:02
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/04; G01K13/08; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2039; G03G15/2042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
In a pressure heat fixing device comprising a pair of heated fixing rollers rotated in pressure contact with one another and at least one of said rollers having its surface temperature detected by a temperature detecting means in surface contact therewith, the improvement comprising, temperature detection means pivotally mounted on a shaft member to contact the surface of said roller, said shaft member extending parallel to the longitudinal axis of said roller, drive means for imparting a reciprocating movement to said shaft member to move said temperature detection means in a first direction parallel to the axis of said roller and then a second direction opposite said first direction, said drive means including an eccentric cam member drivingly coupled to said roller whereby upon rotation of said roller said cam member is rotated to effect movement in a first direction and spring means arranged between said shaft member and said cam member to effect movement in a second direction upon continued rotation of said roller and cam member.
Claim 2
Dependent Claim
168 words
In a pressure heat fixing device comprising a pair of heated fixing rollers rotated in pressure contact with one another and at least one of said rollers having its surface temperature detected by a temperature detecting means in surface contact therewith, the improvement comprising, temperature detection means pivotally mounted on a shaft member to contact the surface of said roller, said shaft member extending parallel to the longitudinal axis of said roller, drive means for imparting a reciprocating movement to said shaft member to move said temperature detection means in a first direction parallel to the axis of said roller and then a second direction opposite said first direction, said drive means including an eccentric cam member drivingly coupled to said roller whereby upon rotation of said roller said cam member is rotated to effect movement in a first direction and spring means arranged between said shaft member and said cam member to effect movement in a second direction upon continued rotation of said roller and cam member.
References Cited (Backward Citations)
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Cited
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US3690176A
Cited
US3849628A
Cited
US3933149A
Cited
US3918397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |