US3777307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catcher for a jet drop recorder
Assignee: Eastman Kodak Co
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Filing: 1972-12-20
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Granted: 1973-12-04
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Expires: 1992-12-20
Abstract
Abstract There is disclosed an elongated catcher for use with a jet drop recorder which comprises a convex catching face and a recessed drop ingesting blade. The catcher is preferably grounded and positioned in spaced relation to an electrically charged deflection ribbon so as to create a static electrical field between the deflection ribbon and the face of the catcher. Drops of recording fluid which are deflected by the electrical field impact against the backwardly sloping upper portion of the catching face and then flow downwardly along the curving surface of the catching face to the upper surface of the blade. The captured recording fluid, which has preferably spread out into a continuous film, is then ingested into an internal cavity via a series of channels in the upper surface of the blade. To prevent build up of accumulated spray at the top of the catcher there is provided a porous upper surface which connects with a special compartment within the catcher. This compartment is separate from a larger main compartment into which is delivered the ink which is ingested by the blade. Each of these compartments has its own vacuum source for drawing off the liquid accumulated therein.
Inventors
- 👤 P Duffield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:01
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/18; B41J2/185; B41J2002/1853
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
100 words
In a jet drop recording apparatus comprising means for generating a row of parallel drop streams, means for selective charging of drops within said streams, means for establishing an electrical field to deflect those of said drops which are charged as aforesaid, and means for catching the drops so deflected, the improvement wherein said catching means comprises an ingesting blade and a convex catching surface, said surface having a drop catching first portion sloping backwardly away from the paths of said streams and a second portion curving downwardly and inwardly to carry liquid from said first portion to said blade.
Claim 2
Dependent Claim
100 words
In a jet drop recording apparatus comprising means for generating a row of parallel drop streams, means for selective charging of drops within said streams, means for establishing an electrical field to deflect those of said drops which are charged as aforesaid, and means for catching the drops so deflected, the improvement wherein said catching means comprises an ingesting blade and a convex catching surface, said surface having a drop catching first portion sloping backwardly away from the paths of said streams and a second portion curving downwardly and inwardly to carry liquid from said first portion to said blade.
Claim 3
Dependent Claim
30 words
The improvement of claim 1, the angle of slope of said backwardly sloping surface ranging from about 5 degrees to about 20 degrees from the direction of said stream paths.
Claim 4
Dependent Claim
20 words
The improvement of claim 2 said angle of slope being about 10 degrees from the direction of said stream paths.
Claim 5
Dependent Claim
24 words
The improvement of claim 1 said catching means being provided with a porous area in the top wall thereof for ingestion of accumulated liquid.
Claim 6
Dependent Claim
33 words
The improvement of claim 1 said ingesting blade having a tip which projects outwardly away from said second surface portion a distance less than the maximum outward projection of said convex catching surface.
Claim 7
Dependent Claim
92 words
Catching apparatus for a jet drop recording head comprising: an elongated main body provided with a fluid collection cavity and a convex working face; said face having a projecting nose portion, a drop catching surface sloping backwardly above said nose, and an inwardly recessed fluid guiding surface below said nose, and a fluid ingesting blade arranged to receive fluid from said inwardly recessed lower surface and deliver it to said fluid collection cavity; said blade projecting outwardly from said recessed surface a distance less than the greatest outward projection of said nose.
Claim 8
Dependent Claim
92 words
Catching apparatus for a jet drop recording head comprising: an elongated main body provided with a fluid collection cavity and a convex working face; said face having a projecting nose portion, a drop catching surface sloping backwardly above said nose, and an inwardly recessed fluid guiding surface below said nose, and a fluid ingesting blade arranged to receive fluid from said inwardly recessed lower surface and deliver it to said fluid collection cavity; said blade projecting outwardly from said recessed surface a distance less than the greatest outward projection of said nose.
Claim 9
Dependent Claim
28 words
Apparatus according to claim 6 said cavity being an elongated cavity in the lower surface of said main body and said blade being arranged to cover said cavity.
Claim 10
Dependent Claim
21 words
Apparatus according to claim 7 said blade being provided with a series of fluid conveying channels on the upper surface thereof.
Claim 11
Dependent Claim
17 words
Apparatus according to claim 8 further comprising means to remove accumulated fluid from the top surface thereof.
Claim 12
Dependent Claim
33 words
Apparatus according to claim 9 said main body being provided with an elongated second cavity in the upper surface thereof and said fluid removal means comprising a porous insert for said second cavity.
Claim 13
Dependent Claim
24 words
Apparatus according to claim 10 the angle of slope of said backwardly sloping surface being about 10 degrees from a tangent to said nose.
References Cited (Backward Citations)
US3611422A
Cited
US3701998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |