Patent US3736053A successfully refreshed from Google Patents.
US3736053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic apparatus
Assignee: STATIKON COPIERS Ltd
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Filing: 1970-10-22
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Granted: 1973-05-29
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Expires: 1990-10-22
Abstract
Abstract In copying apparatus comprising a drum provided with a photoconductive surface, copy paper feed means for feeding paper to the drum and drive means for driving the drum surface and the copy paper at the same speed, the drum is carried on first support means the copy paper feed means are carried on second support means, and the two support means are moveable into and out of register, so that main drive means on the said second support means, arranged to drive the copy paper feed means, engage or disengage driven means arranged to drive the said drum without the said main drive means needing to be disengaged.
Inventors
- 👤 N G Shreeve
- 👤 K S Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:35
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28; G03G15/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
236 words
Copying apparatus comprising a pair of side frames each comprising first and second parts, said two first parts being connected to form first support means and said two second parts being connected to form second support means, a first surface adapted to carry a transferable and developable image of the data to be copied, first means for feeding copy material to said first surface, drive means for driving said first surface and the copy material at the same speed, in which said first surface is carried on said first support means, said first means are carried on said second support means and said two support means are hingedly interconnected so as to be movable into and out of register, and are so hinged about an axis adjacent their bottom edges that one can be hinged down and away from the other, and main drive means provided on one of said support means, drivingly engaging driver means connected with one of said first sUrface and said first means which is carried on the support means which carries said drive means, said main drive means being arranged to engage and disengage said driven means connected with the other of said first surface and said first means without said main drive means needing to be disengaged from said one of said first surface and said first means which is carried on the support means which carries said drive means.
Claim 2
Dependent Claim
236 words
Copying apparatus comprising a pair of side frames each comprising first and second parts, said two first parts being connected to form first support means and said two second parts being connected to form second support means, a first surface adapted to carry a transferable and developable image of the data to be copied, first means for feeding copy material to said first surface, drive means for driving said first surface and the copy material at the same speed, in which said first surface is carried on said first support means, said first means are carried on said second support means and said two support means are hingedly interconnected so as to be movable into and out of register, and are so hinged about an axis adjacent their bottom edges that one can be hinged down and away from the other, and main drive means provided on one of said support means, drivingly engaging driver means connected with one of said first sUrface and said first means which is carried on the support means which carries said drive means, said main drive means being arranged to engage and disengage said driven means connected with the other of said first surface and said first means without said main drive means needing to be disengaged from said one of said first surface and said first means which is carried on the support means which carries said drive means.
Claim 3
Dependent Claim
38 words
Copy apparatus as claimed in claim 1 in which the first and second support means are linked by stop means arranged to limit the extent to which the first and second support means can move out of register.
Claim 4
Dependent Claim
37 words
Copying apparatus as claimed in claim 1 in which the first and second support means are linked by resistance means arranged to limit the rate at which the support means can move into and out of register.
Claim 5
Dependent Claim
46 words
Copying apparatus as claimed in claim 1 in which the first and second support means are provided with guide means arranged to ensure that the final movement into register is correctly aligned whereby correct engagement of the main drive means and the driven means is assisted.
Claim 6
Dependent Claim
223 words
Copying apparatus comprising a pair of side frames each comprising first and second parts, said two first parts being connected to form first support means and said two second parts being connected to form second support means, a first surface adapted to carry a transferable and developable image of the data to be copied, first means for feeding copy material to said first surface, an optical scanning and image transfer system for producing a transferable and developable image of the data to be copied on said first surface, without said data having to contact said first surface, third means for causing the copy material to acquire a developed image of the data to be copied and drive means for driving said first surface and the copy material at the same speed, in which said first surface is carried on said first support means said first means are carried on said second support means and said two support means are movable into and out of register, and main drive means provided on said second support means drivingly engaging driven means connected with said first means, said main drive means being arranged to engage and disengage driven means on said first support means, said driven means being connected with said first surface without said main drive means needing to be disengaged from said first means.
Claim 7
Dependent Claim
223 words
Copying apparatus comprising a pair of side frames each comprising first and second parts, said two first parts being connected to form first support means and said two second parts being connected to form second support means, a first surface adapted to carry a transferable and developable image of the data to be copied, first means for feeding copy material to said first surface, an optical scanning and image transfer system for producing a transferable and developable image of the data to be copied on said first surface, without said data having to contact said first surface, third means for causing the copy material to acquire a developed image of the data to be copied and drive means for driving said first surface and the copy material at the same speed, in which said first surface is carried on said first support means said first means are carried on said second support means and said two support means are movable into and out of register, and main drive means provided on said second support means drivingly engaging driven means connected with said first means, said main drive means being arranged to engage and disengage driven means on said first support means, said driven means being connected with said first surface without said main drive means needing to be disengaged from said first means.
Claim 8
Dependent Claim
147 words
Copying apparatus as claimed in claim 5, further provided with interengageable means on said first and second support means whereby disengagement of the said interengageable means moves said two support means out of register over a short distance such that said main drive means and said driven means are disengaged and said main drive means and said driven means can only be brought into full engagement by re-engagement of said interengageable means, said interengageable means comprising a pin on one of said support means and a lever pivoted on the other of said support means, said lever having a slot therein for engagement with said pin whereby disengagement forces said pin away from the pivot axis of said lever and re-engagement forces said pin and thus its associated support towards the pivot axis of said lever and thus towards the support on which said lever is mounted.
Claim 9
Dependent Claim
67 words
Copying apparatus as claimed in claim 6 in which the slot is curved about an axis nearer to the pivot between the first and second support means than is the pivot axis of the lever and is so positioned and dimensioned that when the pin is at the inner end of the slot and the main drive means and the driven means are correctly and fully engaged.
Claim 10
Dependent Claim
51 words
Copying apparatus as claimed in claim 5 in which developer means having a drive in put member are mounted on the same support means as said first surface and the driven means arranged to drive said first surface are arranged also to drive said drive in put member of the developer.
Claim 11
Dependent Claim
38 words
Copying apparatus as claimed in claim 8 in which the developer means are a cascade developer having an elevator which is adjustably mounted on said support means and driven from said driven means by a flexible belt drive.
Claim 12
Dependent Claim
27 words
Copying apparatus as claimed in claim 5 in which said two connected support means are movable into and out of register by being hinged to one another.
Claim 13
Dependent Claim
33 words
Copying apparatus as claimed in claim 10 in which said support means are hinged about an axis adjacent their bottom edge so that one can be hinged down and away from the other.
Claim 14
Dependent Claim
48 words
Copying apparatus as claimed in claim 10 in which the main drive means and the driven means comprise interengaging wheels and are so arranged on their respective support means that when in driving relationship their common tangent passes through the axis on which the support means are pivoted.
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US3490842A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |