US4272773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink supply and filter for ink jet printing systems
Assignee: Gould Instrument Systems Inc
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Filing: 1979-05-24
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Granted: 1981-06-09
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Expires: 1999-05-24
Abstract
Abstract A sealed, collapsible container is disclosed for ink supply in ink jet printing systems. Fill and delivery conduits extending into the container terminate in small filter assemblies having a filter element made from compressed fibers forming a plurality of substantially parallel passages through which capillary flow is achievable.
Inventors
- 👤 Laszlo Halasz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:25
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17563; G; G01; G01D; G01D15/00; G01D15/16; G01D15/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
81 words
An improved ink supply container for use in ink jet printing systems, comprising: a sealed collapsible container; at least one ink delivery conduit extending through a wall of said container, said conduit having an inlet end located in said container; a conduit segment having a bore sized to receive said inlet end; and a filter element located within said bore, said element comprising a cylinder of compressed fibers forming a plurality of substantially parallel passages through which capillary flow is achievable.
Claim 2
Dependent Claim
81 words
An improved ink supply container for use in ink jet printing systems, comprising: a sealed collapsible container; at least one ink delivery conduit extending through a wall of said container, said conduit having an inlet end located in said container; a conduit segment having a bore sized to receive said inlet end; and a filter element located within said bore, said element comprising a cylinder of compressed fibers forming a plurality of substantially parallel passages through which capillary flow is achievable.
Claim 3
Dependent Claim
30 words
An improved container according to claim 1, wherein said filter element comprises a bundle of closely packed Dacron fibers sized to permit flow of ink jet ink by capillary action.
Claim 4
Dependent Claim
18 words
An improved container according to claim 1, wherein said cylinder is from 0.100 to 0.254 cm in length.
Claim 5
Dependent Claim
80 words
An improved container according to claim 1, further comprising at least one ink fill conduit extending through a wall of said container, said fill conduit having a discharge end located in said container; a further conduit segment having a further bore sized to receive said discharge end; and a further filter element located within said further bore, said further element also comprising a cylinder of compressed fibers forming a plurality of substantially parallel passages through which capillary flow is achievable.
Claim 6
Dependent Claim
31 words
An improved container according to claim 4, wherein said further filter element comprises a bundle of closely packed Dacron fibers sized to permit flow of ink jet ink by capillary action.
Claim 7
Dependent Claim
18 words
An improved container according to claim 5, wherein said cylinder is from 0.100 to 0.254 cm in length.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |