Patent US4642404A successfully refreshed from Google Patents.
Patent US4024548A successfully refreshed from Google Patents.
US4024548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid absorbing assembly with two porosities
Assignee: International Business Machines Corp
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Filing: 1976-06-07
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Granted: 1977-05-17
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Expires: 1996-06-07
Abstract
Abstract An ink absorbing assembly has a first porous material disposed close to a paper against which ink jet droplets impact to print. Ink from an ink mist, which is produced from the droplets striking the paper, is absorbed by the first porous material and then transferred to a second porous material, which is in contact with the first porous material and of a different porosity than the first porous material. This enables the surface of the first porous material adjacent the paper in the print area to be relatively dry so as to not allow airborne particles to cling to this surface. By making the porous material of smaller porosity relatively thick in comparison with the other porous material, a relatively large quantity of ink can be absorbed by the porous material of smaller porosity without the surface of the porous material adjacent the paper in the print area becoming wet before replacement is necessary.
Inventors
- 👤 Victor Manuel Alonso
- 👤 David Roy Cialone
- 👤 George Romeo Ducharme
- 👤 Paul Douglas Ginnings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:42
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/1714; B41J2/18; B41J2/185; B41J2002/1853
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
An assembly for absorbing ink from an ink mist produced by ink droplets of an ink jet stream striking a recording medium including: a first porous material disposed adjacent the recording medium to absorb ink from the ink mist produced by the ink droplets striking the recording medium; and a second porous material disposed in contact with said first porous material and having a smaller porosity than said first porous material to absorb ink from said first porous material.
Claim 2
Dependent Claim
79 words
An assembly for absorbing ink from an ink mist produced by ink droplets of an ink jet stream striking a recording medium including: a first porous material disposed adjacent the recording medium to absorb ink from the ink mist produced by the ink droplets striking the recording medium; and a second porous material disposed in contact with said first porous material and having a smaller porosity than said first porous material to absorb ink from said first porous material.
Claim 3
Dependent Claim
18 words
The assembly according to claim 1 in which each of said first and second porous materials is non-corrosive.
Claim 4
Dependent Claim
17 words
The assembly according to claim 1 in which said first porous material is a metallic porous material.
Claim 5
Dependent Claim
17 words
The assembly according to claim 1 in which said first porous material is a plastic porous material.
Claim 6
Dependent Claim
16 words
The assembly according to claim 1 in which said second porous material is a fibrous material.
Claim 7
Dependent Claim
19 words
The assembly according to claim 1 in which said second porous material is thicker than said first porous material.
Claim 8
Dependent Claim
18 words
The assembly according to claim 6 in which each of said first and second porous materials is non-corrosive.
Claim 9
Dependent Claim
17 words
The assembly according to claim 6 in which said first porous material is a metallic porous material.
Claim 10
Dependent Claim
17 words
The assembly according to claim 6 in which said first porous material is a plastic porous material.
Claim 11
Dependent Claim
16 words
The assembly according to claim 6 in which said second porous material is a fibrous material.
Claim 12
Dependent Claim
79 words
An assembly for absorbing ink from an ink mist produced by ink droplets of an ink jet stream striking a recording medium including; a first porous material disposed adjacent the recording medium to absorb ink from the ink mist produced by the ink droplets striking the recording medium; and a second porous material disposed in contact with said first porous material and having a different porosity than said first porous material to absorb ink from said first porous material.
Claim 13
Dependent Claim
79 words
An assembly for absorbing ink from an ink mist produced by ink droplets of an ink jet stream striking a recording medium including; a first porous material disposed adjacent the recording medium to absorb ink from the ink mist produced by the ink droplets striking the recording medium; and a second porous material disposed in contact with said first porous material and having a different porosity than said first porous material to absorb ink from said first porous material.
Claim 14
Dependent Claim
18 words
The assembly according to claim 11 in which each of said first and second porous materials is non-corrosive.
Claim 15
Dependent Claim
35 words
The assembly according to claim 11 in which one of said first and second porous materials is a metallic porous material and the other of said first and second porous materials is a fibrous material.
Claim 16
Dependent Claim
35 words
The assembly according to claim 11 in which one of said first and second porous materials is a plastic porous material and the other of said first and second porous materials is a fibrous material.
References Cited (Backward Citations)
US3611422A
Cited
US3946405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |