US3828355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous ink-jet recording
Assignee: Agfa Gevaert AG
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Filing: 1973-09-18
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Granted: 1974-08-06
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Expires: 1993-09-18
Abstract
Abstract The ink-jet recording system comprises a rotor on whose cylindrical surface rests a recording support, and a annular inkjet nozzle system which is stationary in relation to the rotor. At least one supply roll and one take-up roll for the sheet-form recording support are arranged on the rotor. These rolls are connected to the rotor so that the recording support makes both a rotary and a translatory movement in operation relative to the stationary nozzle system. In a preferred embodiment the rotor in the form of a solid cylinder and the recording support is guided externally over the surface of the rotor. In this embodiment, the stationary annular nozzle system is arranged over the surface of the rotor.
Inventors
- 👤 R Wick
- 👤 R Meyer
- 👤 K Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0607; H04N1/0614; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/145; B41J2/155; H04N1/08; H04N1/083; H04N1/0856; H04N1/0873; H04N1/0886; H04N1/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
93 words
An apparatus for continuously recording ink-jet pictures comprising a rotor having a cylindrical surface, and an annular ink-jet nozzle system, wherein the ink-jet nozzle system is stationary in relation to the rotor, and at least one supply roll and one take-up roll are arranged on the rotor for at least one recording support in guided sheet form each of which is guided over the rotor surface being connected to and rotating with the rotor so that each recording support simultaneously makes a rotary and translatory movement in relation to the stationary nozzle system.
Claim 2
Independent Claim
93 words
An apparatus for continuously recording ink-jet pictures comprising a rotor having a cylindrical surface, and an annular ink-jet nozzle system, wherein the ink-jet nozzle system is stationary in relation to the rotor, and at least one supply roll and one take-up roll are arranged on the rotor for at least one recording support in guided sheet form each of which is guided over the rotor surface being connected to and rotating with the rotor so that each recording support simultaneously makes a rotary and translatory movement in relation to the stationary nozzle system.
Claim 3
Dependent Claim
45 words
An apparatus as claimed in claim 1, wherein the rotor is in the form of a solid cylinder and each recording support is guided externally over the surface of the rotor, the stationary annular nozzle system being arranged over the external surface of the rotor.
Claim 4
Dependent Claim
42 words
An apparatus as claimed in claim 1, wherein the rotor is in the form of a hollow cylinder each recording support is guided over the inner surface of the hollow cylinder, the stationary annular nozzle system being arranged inside the hollow cylinder.
Claim 5
Dependent Claim
26 words
An apparatus as claimed in claim 3, wherein each recording support is guided helically over the rotor surface from the supply roll to the take-up roll.
Claim 6
Dependent Claim
44 words
An apparatus as claimed in claim 4, wherein guide rollers are arranged on the rotor in the vicinity of the supply and take-up rolls for guiding each recording support supply roll onto the rotor surface and from the rotor surface onto the take-up roll.
Claim 7
Dependent Claim
51 words
An apparatus as claimed in claim 5, wherein the or each supply roll and take-up roll are arranged inside the rotor, and their axes are inclined towards the rotor axis by an amount dependent on the direction in which each sheet recording support runs onto and off from the rotor surface.
Claim 8
Dependent Claim
55 words
An apparatus as claimed in claim 5, wherein each supply roll and take-up roll is arranged on the rotor axis and the axes of the guide rollers are inclined in relation to the rotor axis in such a way that the recording support is turned through 90* into a plane tangential to the rotor surface.
Claim 9
Dependent Claim
64 words
An apparatus as claimed in claim 7, wherein the angle of inclination Alpha of the guide rollers relative to the axis of the rotor is selected in accordAnce with the relation Alpha gamma .U where gamma is the angle at which the or each recording support runs onto and off from the rotor surface and U is the looping angle around the guide roller.
Claim 10
Dependent Claim
34 words
An apparatus as claimed in claim 8, wherein additional guide rollers are arranged in the vicinity of each supply roll and take-up roll to keep the looping angle U around the guide rollers constant.
Claim 11
Dependent Claim
23 words
An apparatus as claimed in claim 5 wherein at least one of the guide rollers is driven and determines the recording support advance.
Claim 12
Dependent Claim
27 words
An apparatus as claimed in claim 5, wherein the ratio of the peripheral speed of the rotor to the rate of recording support sheet advance is constant.
Claim 13
Dependent Claim
38 words
An apparatus as claimed in claim 5, wherein a plurality of supply rolls are arranged at one end and a corresponding plurality take-up rolls at the other end of the rotor adjacent one another on the rotor axis.
Claim 14
Dependent Claim
37 words
An apparatus as claimed in any claim 12, wherein the axes of the guide rollers extend obliquely of the rotor axis and each recording support is turned through 90* into a plane tangential to the rotor surface.
Claim 15
Dependent Claim
33 words
An apparatus as claimed in claim 13, wherein additional guide rollers which keep the looping angle around the guide rollers constant are arranged in the vicinity of the supply rolls and take-up rolls.
Claim 16
Dependent Claim
13 words
An apparatus as claimed in claim 5, wherein the rotor surface is hydrophobic.
Claim 17
Dependent Claim
30 words
An apparatus as claimed in claim 3, wherein each recording support is guided over the rotor surface parallel to the rotor axis from the supply roll to the take-up roll.
Claim 18
Dependent Claim
54 words
An apparatus as claimed in claim 16, wherein there are a plurality of supply rolls and take-up rolls which are arranged at the ends of the rotor and distributed uniformly over its periphery and perpendicularly of the rotor axis in such a way that the supply rolls and take-up rolls are opposite one another.
Claim 19
Dependent Claim
36 words
An apparatus as claimed in claim 17, wherein contact rollers are provided on the rotor surface so that the recording supports are in close contact with the rotor surface in the vicinity of the nozzle system.
Claim 20
Dependent Claim
30 words
An apparatus as claimed in claim 18, wherein the rotor surface is bevelled frusto-conically towards its ends so that each flat recording support is gradually converted into an arcuate form.
Claim 21
Dependent Claim
36 words
An apparatus as claimed in claim 17, wherein the rotor surface is provided with bores and means for generating a vacuum inside the rotor so that the sheet recording supports are drawn onto the rotor surface.
References Cited (Backward Citations)
US3130931A
Cited
US3416153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |