US3850356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll type copying paper supply device
Assignee: Canon Inc
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Filing: 1973-12-26
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Granted: 1974-11-26
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Expires: 1993-12-26
Abstract
Abstract A device for selectively drawing out the copying paper from different rolls of copying paper of A series and B series sizes and feeding the selected paper to the exposing section of a copying apparatus, the desired one of copying paper of different sizes being automatically fed even when their loaded positions are reversed.
Inventors
- 👤 Y Abe
- 👤 K Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:59
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587; G03B27/588; G03G15/22; G03G15/28; G03G15/6588; G03G15/6594; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00518
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
A roll Type copying paper supply device comprising at least two loading members on which rolls of copying paper of different width are respectively loaded, feeding members each disposed corresponding to the rolls of copying paper to feed the paper from the rolls, means for selecting one of the rolls of copying paper, detecting means for detecting the width of the copying paper, and circuit means to operate selected one of the feeding members to feed the corresponding copying paper from the roll of copying paper in response to the selecting means and detecting means, whereby the selected one of copying paper is fed independent of positions in which the rolls of copying paper are loaded on the loading members.
Claim 2
Dependent Claim
120 words
A roll Type copying paper supply device comprising at least two loading members on which rolls of copying paper of different width are respectively loaded, feeding members each disposed corresponding to the rolls of copying paper to feed the paper from the rolls, means for selecting one of the rolls of copying paper, detecting means for detecting the width of the copying paper, and circuit means to operate selected one of the feeding members to feed the corresponding copying paper from the roll of copying paper in response to the selecting means and detecting means, whereby the selected one of copying paper is fed independent of positions in which the rolls of copying paper are loaded on the loading members.
Claim 3
Dependent Claim
214 words
A roll type copying paper supply device comprising a first supporting member supporting one of rolls of copying paper of A-series and B-series types, a second supporting member supporting the other of said rolls of copying paper, a first drawing member drawing out the copying paper supported on the first supporting member, a second drawing member drawing out the copying paper supported on the second supporting member, detecting means for detecting the roll of copying paper supported on the first shaft whether said copying paper has A- series size or B-series size, and an electric circuit, the circuit including a power source, a first clutch to drive the first drawing member when electrically connected to the power source, a second clutch to drive the second drawing member when electrically connected to the power source, a changeover switch selectively connecting the power source to the first and second clutches, a selecting switch to select one of the rolls of copying paper and means for connecting the selecting switch to the changeover switch so that copying paper of A-series size is fed when the selecting switch selects one and copying paper of B-series size is fed when the selecting switch selects one, which is accomplished independent of the supporting positions of the rolls of copying paper.
Claim 4
Dependent Claim
214 words
A roll type copying paper supply device comprising a first supporting member supporting one of rolls of copying paper of A-series and B-series types, a second supporting member supporting the other of said rolls of copying paper, a first drawing member drawing out the copying paper supported on the first supporting member, a second drawing member drawing out the copying paper supported on the second supporting member, detecting means for detecting the roll of copying paper supported on the first shaft whether said copying paper has A- series size or B-series size, and an electric circuit, the circuit including a power source, a first clutch to drive the first drawing member when electrically connected to the power source, a second clutch to drive the second drawing member when electrically connected to the power source, a changeover switch selectively connecting the power source to the first and second clutches, a selecting switch to select one of the rolls of copying paper and means for connecting the selecting switch to the changeover switch so that copying paper of A-series size is fed when the selecting switch selects one and copying paper of B-series size is fed when the selecting switch selects one, which is accomplished independent of the supporting positions of the rolls of copying paper.
Claim 5
Dependent Claim
21 words
A device according to claim 2 wherein the first and second drawing members respectively include a plurality of paired pinch rolls.
Claim 6
Dependent Claim
29 words
A device according to claim 2 wherein the detecting means includes a microswitch to detect the width of the roll of copying paper supported on the first supporting member.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |