US3717747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying means for electrophotographic copying machines
Assignee: Konica Minolta Inc
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Filing: 1971-09-01
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Granted: 1973-02-20
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Expires: 1991-09-01
Abstract
Abstract Apparatus for controlling the current to a lamp in an electrophotographic copying machine as provided comprising a resistor mounted in the power circuit to the lamp, said resistor being mounted in the copy paper drying means associated with said copying machine whereby the heat generated by said resistor does not raise the temperature within the copying section of the apparatus.
Inventors
- 👤 M Fuyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:20
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
73 words
In an electrophotographic copying means of the type having a copying section, separate means for drying the copy paper, and a power supply circuit for energizing an original illuminating lamp, the improvement comprising a resistor for controlling the electric current supply to said lamp, said resistor being disposed within said means for drying the copy paper whereby the heat generated by said resistor does not raise the temperature within the said copying section.
Claim 2
Dependent Claim
73 words
In an electrophotographic copying means of the type having a copying section, separate means for drying the copy paper, and a power supply circuit for energizing an original illuminating lamp, the improvement comprising a resistor for controlling the electric current supply to said lamp, said resistor being disposed within said means for drying the copy paper whereby the heat generated by said resistor does not raise the temperature within the said copying section.
Claim 3
Dependent Claim
73 words
In an electrophotographic copying means of the type having a copying section, separate means for drying the copy paper, and a power supply circuit for energizing an original illuminating lamp, the improvement comprising a resistor for controlling the electric current supply to said lamp, said resistor being disposed within said means for drying the copy paper whereby the heat generated by said resistor does not raise the temperature within the said copying section.
Claim 4
Dependent Claim
73 words
In an electrophotographic copying means of the type having a copying section, separate means for drying the copy paper, and a power supply circuit for energizing an original illuminating lamp, the improvement comprising a resistor for controlling the electric current supply to said lamp, said resistor being disposed within said means for drying the copy paper whereby the heat generated by said resistor does not raise the temperature within the said copying section.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |