US4073489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document transport device
Assignee: Hoechst AG
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Filing: 1977-02-24
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Granted: 1978-02-14
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Expires: 1997-02-24
Abstract
Abstract Disclosed is a device for transporting an original to be copied while resting on a supporting surface, preferably a drum, in a reproduction apparatus, comprising: a shaft extending across the width of the supporting surface and being arranged in spaced relationship substantially parallel therewith; a plurality of means in spaced attachment along the shaft and responsive to rotation of the shaft for clamping the leading edge of the original; a flexible strip member commonly covering the clamping means and being adapted to protect the leading edge of the original in the clamped position; means engaging one end of the shaft in an original-receiving position for opening and closing the clamping means by rotating the shaft; and means engaging one end of the shaft in an original-releasing position for opening the clamping means by rotating the shaft.
Inventors
- 👤 Hermann Idstein
- 👤 Peter Loew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:58
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625; G03B27/6257
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
131 words
A device for transporting an original to be copied while resting on a supporting surface in a reproduction apparatus, comprising: a shaft extending across the width of the supporting surface and being arranged in spaced relationship substantially parallel therewith; a plurality of means in spaced attachment along said shaft and responsive to rotation of the shaft for clamping the leading edge of the original; a flexible strip member commonly covering said clamping means and being adapted to protect the leading edge of the original in the clamped position; means engaging one end of said shaft in an original-receiving position for opening and closing said clamping means by rotating said shaft; and means engaging one end of said shaft in an original-releasing position for opening said clamping means by rotating said shaft.
Claim 2
Independent Claim
131 words
A device for transporting an original to be copied while resting on a supporting surface in a reproduction apparatus, comprising: a shaft extending across the width of the supporting surface and being arranged in spaced relationship substantially parallel therewith; a plurality of means in spaced attachment along said shaft and responsive to rotation of the shaft for clamping the leading edge of the original; a flexible strip member commonly covering said clamping means and being adapted to protect the leading edge of the original in the clamped position; means engaging one end of said shaft in an original-receiving position for opening and closing said clamping means by rotating said shaft; and means engaging one end of said shaft in an original-releasing position for opening said clamping means by rotating said shaft.
Claim 3
Dependent Claim
46 words
The device according to claim 1, wherein the supporting surface comprises the outer circumferential surface of a drum, the drum having a lateral recess extending across substantially its entire width, and wherein said shaft and said clamping means are disposed within the recess in the drum.
Claim 4
Dependent Claim
33 words
The device according to claim 2, further comprising a removable cover member for the drum, and wherein said clamp opening and closing means and said clamp opening means are mounted on the cover.
Claim 5
Dependent Claim
26 words
The device according to claim 2, wherein the outer surfaces of said clamping means are flush with the support surface when the clamping means are closed.
Claim 6
Dependent Claim
33 words
The device according to claim 2, wherein each of said clamping means comprises a stationary clamping bar disposed in the recess in the support drum and a gripping finger connected to said shaft.
Claim 7
Dependent Claim
66 words
The device according to claim 1, wherein the supporting surface comprises the outer circumferential surface of a rotatable drum, wherein said device further comprises means including a bracket on each end of the drum for supporting said shaft in spaced relationship above the surface of the drum and means for selectively coupling said support means with the axis of rotation of the drum for rotation therewith.
Claim 8
Dependent Claim
22 words
The device according to claim 5, wherein said gripping fingers comprise curved outside surfaces adapted to the curvature of the support drum.
Claim 9
Dependent Claim
47 words
The device according to claim 7, wherein each of said clamping means further comprises a locking ring attached to said shaft, and a spring coaxially surrounding said shaft, one end of said spring being fastened to said locking ring and the other end engaging said gripping finger.
Claim 10
Dependent Claim
62 words
The device according to claim 8, wherein each of said clamping means further comprises a positionable driving ring locked in position on said shaft adjacent to said gripping finger, the side of the driving ring facing the gripping finger including a step, and wherein said gripping finger comprises a step complementary to said step in the adjacent side of the driving ring.
Claim 11
Dependent Claim
54 words
The device according to claim 9, wherein the driving ring adjoins the gripping finger, and wherein in the radial direction of the shaft a distance (d) exists between the step provided in the driving ring and the step in the gripping finger, which distance (d) is variable in accordance with turning of the shaft.
Claim 12
Dependent Claim
65 words
The device according to claim 3, wherein said clamp opening and closing means comprises an actuating roller rotatably attached to the end of said shaft, a cam member pivotably mounted adjacent one end of said shaft so that said roller rides on the top edge thereof, a cam actuating lever attached to said cam and a means attached to said lever for driving said lever.
Claim 13
Dependent Claim
31 words
The device according to claim 11, wherein said lever further comprises a forked element pivotably attached to the lever and a spacer element connecting said forked element with said driving means.
Claim 14
Dependent Claim
47 words
The device according to claim 12, further comprising a control lever rotatably mounted on one end said shaft and carrying at one end said actuating roller, a connecting plate attached to the other end of said control lever and a lifting rod connected to said connecting plate.
Claim 15
Dependent Claim
36 words
The device according to claim 13, wherein said control lever includes a slot and the connecting plate of the lifting rod engages in said slot in the control lever and is connected to said control lever.
Claim 16
Dependent Claim
52 words
The device according to claim 14, wherein said lifting rod includes an adjustable stop adjacent to said control lever and said device further comprises a compression spring encircling the lifting rod, said spring abutting one end said adjustable stop and at its other end contacting a bearing surface of said cover member.
Claim 17
Dependent Claim
38 words
The device according to claim 11, wherein said clamp opening and closing means and said clamp opening means are arranged on the inside of said cover member and wherein said drum is rotatably supported by said cover member.
Claim 18
Dependent Claim
24 words
The device according to claim 16, wherein said cover member is arranged at a distance from one of the end faces of the drum.
Claim 19
Dependent Claim
39 words
The device according to claim 17, wherein said clamp opening means comprises a cam plate and means for selectively moving said cam plate into the path of said actuating roller at a position desired for release of the original.
Claim 20
Dependent Claim
42 words
The device according to claim 18, wherein said selective moving means comprises a pair of guide rods attached to said cam plate, a connecting rod between said guide rods and connecting them, and a lifting device operatively connected to said connecting rod.
Claim 21
Dependent Claim
46 words
The device according to claim 15, wherein each of said clamping means further comprises a spring connection to said shaft, and wherein the spring force of said compression spring exceeds the sum of the spring forces of each of said spring connections of said clamping means.
Claim 22
Dependent Claim
23 words
The device according to claim 1, wherein said strip member is attached to at least the two end clamping means on said shaft.
References Cited (Backward Citations)
US3944218A
Cited
US4033575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |