Patent US4192608A successfully refreshed from Google Patents.
US4192608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus
Assignee: Canon Inc
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Filing: 1978-10-10
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Granted: 1980-03-11
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Expires: 1998-10-10
Abstract
Abstract A copying apparatus capable of copying sheet originals and thick originals comprises sheet original transport means for transporting a sheet original, thick original carrier means for carrying thereon a thick original, optical means for projecting the image of an original upon a photosensitive member, copy process means for processing copies, and drive means for operating the copy process means. At least a part of the optical means is movable to selectively form an exposure surface at the position of the sheet original exposure surface of the sheet original transport means or the thick original exposure surface of the thick original carrier means.
Inventors
- 👤 Yoshitomo Goshima
- 👤 Hiroyuki Hattori
- 👤 Shiro Komaba
- 👤 Kazumi Umezawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:12
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/605; G03G15/22; G03G15/28; G03G15/30; G03G15/302
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
186 words
A device for controlling a movable member of a copying machine which reciprocates in forward and reverse directions to scan an original, comprising: a movable member for carrying and reciprocating an original to be copied; driving means for moving said movable member in forward and reverse directions; buffer stopping means for absorbing and storing energy from the reverse movement of said movable member while braking and stopping the reverse movement of said movable member at an end position of the reverse movement, and for applying a force in the forward direction to said movable member from the stored energy upon the start of forward movement of said movable member; movement restricting means for preventing the forward movement of said movable member, while allowing the reverse movement thereof, when said movable member is braked by said buffer stopping means; and control means for releasing the preventing action of said movement restriction means to enable application of the force in the forward direction from the stored energy in said buffer stopping means to said movable member, when the forward movement of said movable member is to be started.
Claim 2
Independent Claim
186 words
A device for controlling a movable member of a copying machine which reciprocates in forward and reverse directions to scan an original, comprising: a movable member for carrying and reciprocating an original to be copied; driving means for moving said movable member in forward and reverse directions; buffer stopping means for absorbing and storing energy from the reverse movement of said movable member while braking and stopping the reverse movement of said movable member at an end position of the reverse movement, and for applying a force in the forward direction to said movable member from the stored energy upon the start of forward movement of said movable member; movement restricting means for preventing the forward movement of said movable member, while allowing the reverse movement thereof, when said movable member is braked by said buffer stopping means; and control means for releasing the preventing action of said movement restriction means to enable application of the force in the forward direction from the stored energy in said buffer stopping means to said movable member, when the forward movement of said movable member is to be started.
Claim 3
Dependent Claim
16 words
A device according to claim 1, wherein said movement restricting means includes a one-way spring brake.
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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) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |