US3659938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information recording device
Assignee: Ricoh Co Ltd
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Filing: 1969-04-28
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Granted: 1972-05-02
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Expires: 1989-04-28
Abstract
Abstract An electrostatic-photographic information recording device wherein a recording sheet is fed through an electrostatically charging section, an exposure section (photographing and recording section), a developing section and a drying section. The pressure rollers disposed in said sections and feed rollers are displaced by operation of one lever from the exterior of the device to the positions so as to open the path of feed of said recording sheet for loading the same in the device.
Inventors
- 👤 Sakae Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
211 words
An information recording device comprising: means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; means for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said means for advancing said recording sheet includes an intermittent drive mechanism comprising a cam having an arcuate ridge whose center coincides with the center of rotation of said cam and another ridge which is smoothly interconnected to one end of said first mentioned arcuate ridge and gradually approaches toward or moves away from said center of rotation, and a toothed wheel in mesh with said ridges and carried by a drive shaft.
Claim 2
Dependent Claim
211 words
An information recording device comprising: means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; means for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said means for advancing said recording sheet includes an intermittent drive mechanism comprising a cam having an arcuate ridge whose center coincides with the center of rotation of said cam and another ridge which is smoothly interconnected to one end of said first mentioned arcuate ridge and gradually approaches toward or moves away from said center of rotation, and a toothed wheel in mesh with said ridges and carried by a drive shaft.
Claim 3
Dependent Claim
203 words
An information recording device comprising means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; means for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said providing means for advancing said recording sheet includes an intermittent drive mechanism comprising a worm carried by a drive shaft slidably of the axis of said shaft, and a worm wheel in mesh with said worm, said worm having a pull-down cam which contacts a stationary member so that said worm is caused to slide axially of said shaft upon rotation of said worm.
Claim 4
Dependent Claim
203 words
An information recording device comprising means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; means for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said providing means for advancing said recording sheet includes an intermittent drive mechanism comprising a worm carried by a drive shaft slidably of the axis of said shaft, and a worm wheel in mesh with said worm, said worm having a pull-down cam which contacts a stationary member so that said worm is caused to slide axially of said shaft upon rotation of said worm.
Claim 5
Dependent Claim
213 words
An information recording device comprising means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; mean for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said recording sheet slack providing means comprises a member which is adapted to advance into the path of said recording sheet between said recording sheet feed roller disposed upwardly of said exposure means and said exposure means in response to said opening of said feed path of said recording sheet by said recording sheet path opening mechanism and to retract from said first mentioned path upon closing of said feed path of said recording sheet.
Claim 6
Dependent Claim
213 words
An information recording device comprising means for optically displaying the information transmitted; a recording sheet; means for imparting said recording sheet with an electrostatic charge; means for providing a slack portion in said recording sheet; means for exposing said recording sheet by light rays from said optically displayed information to form a latent image thereon; means for developing the latent image formed on said recording sheet; mean for drying said developed recording sheet; means for advancing said recording sheet including guide rollers, feed rollers, pressure rollers and discharge rollers disposed at spaced positions in said device for advancing said recording sheet along a feed path in said device in a predetermined state, said rollers adapted to be displaced at said positions to open said feed path upon actuation of means operable from the exterior of said device; and said recording sheet slack providing means comprises a member which is adapted to advance into the path of said recording sheet between said recording sheet feed roller disposed upwardly of said exposure means and said exposure means in response to said opening of said feed path of said recording sheet by said recording sheet path opening mechanism and to retract from said first mentioned path upon closing of said feed path of said recording sheet.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |