Patent DE608781C successfully refreshed from Google Patents.
US3609032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for limiting movement range of a movable exposure means in a copying machine
Assignee: Ricoh Co Ltd
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Filing: 1969-01-30
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Granted: 1971-09-28
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Expires: 1989-01-30
Abstract
Abstract A device for limiting the movement of a reciprocable exposure unit in a copying machine including a manual setting for a positioning element corresponding to the size of the copy sheet. A collidable element on the exposure unit moves to contact the positioning element thereby actuating a microswitch to reverse the movement of the exposure unit. The collidable element includes a spring-biased pivotal portion that makes the movable contact and is rotatably movable from one side to the other side of the collidable element.
Inventors
- 👤 Toshio Watanabe
- 👤 Shigeru Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:27
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/50; G03B27/52; G03B27/522; G03B27/525; G03B27/526; G03B27/527; G03G; G03G15/00; G03G15/22; G03G15/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
178 words
A device for limiting the range of movement of a reciprocable exposure means in a copying machine comprising a housing having a front panel and within which an original is positioned for copying; a slot formed in said front panel; table means projecting out from said front panel on which the copy sheet is located to be slidable into the machine for copying; slidable locking means located within said slot; an elongated member positioned within the machine adjacent said front surface and being longitudinally movable; a positioning member located within the machine and positioned between said front surface and said elongated member, said positioning member and said elongated member being selectively locked together by said locking means; a collidable member attached to said exposure means for movement therewith; a power source and electrical circuit including a microswitch that is actuable to provide the return for the exposure means reciprocal movement; and said collidable member positioned within the machine to move and contact said positioning member whereby the resulting movement of said elongated member contacts and actuates the microswitch.
Claim 2
Independent Claim
178 words
A device for limiting the range of movement of a reciprocable exposure means in a copying machine comprising a housing having a front panel and within which an original is positioned for copying; a slot formed in said front panel; table means projecting out from said front panel on which the copy sheet is located to be slidable into the machine for copying; slidable locking means located within said slot; an elongated member positioned within the machine adjacent said front surface and being longitudinally movable; a positioning member located within the machine and positioned between said front surface and said elongated member, said positioning member and said elongated member being selectively locked together by said locking means; a collidable member attached to said exposure means for movement therewith; a power source and electrical circuit including a microswitch that is actuable to provide the return for the exposure means reciprocal movement; and said collidable member positioned within the machine to move and contact said positioning member whereby the resulting movement of said elongated member contacts and actuates the microswitch.
Claim 3
Dependent Claim
48 words
A device according to claim 1 in which said positioning member includes top and bottom edges having hook-over portions to fit over the top and bottom edges of said elongated member, and said positioning member further includes an upper projecting portion that is contacted by said collidable member.
Claim 4
Dependent Claim
68 words
A device according to claim 2 in which said collidable member includes a pivotal portion having a spring bias for return to a predetermined position after pivotal movement, said pivotal portion adapted to contact one side of said projecting portion for the movement to actuate said microswitch, and said pivotal portion being pivotal to pass around said projecting portion after contacting the other side of said projecting portion.
References Cited (Backward Citations)
US3421816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |