Patent US4447820A successfully refreshed from Google Patents.
US4447820A
Expired / Lapsed
US
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Ink supplying mechanism
Assignee: Canon Inc
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Filing: 1982-05-28
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Granted: 1984-05-08
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Expires: 2002-05-28
Abstract
Abstract An ink supplying mechanism has a plurality of flat ink containers each having an ink outlet tube for supplying ink outward. The ink outlet tubes are sealed by a sealing elastic coupling member to form a multi-color ink container. The ink cassette is removably connected to connecting tubes which lead to ink supply passages.
Inventors
- 👤 Koji Terasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:02
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/1752; B41J2/17523
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
An ink supplying mechanism, comprising: a plurality of ink containers each having an ink outlet tube for supplying ink out and having a bag structure made of a flexible film, said plurality of ink containers containing an ink of a different color; a cassette case for accommodating said plurality of ink containers; a guide member for guiding said cassette case to a loading position and for permitting the loading of said cassette case only when said cassette case is in a proper orientation; and a plurality of connecting tubes each connected to a corresponding one of said ink outlet tubes of said plurality of ink containers when said cassette case is at said loading position.
Claim 2
Dependent Claim
115 words
An ink supplying mechanism, comprising: a plurality of ink containers each having an ink outlet tube for supplying ink out and having a bag structure made of a flexible film, said plurality of ink containers containing an ink of a different color; a cassette case for accommodating said plurality of ink containers; a guide member for guiding said cassette case to a loading position and for permitting the loading of said cassette case only when said cassette case is in a proper orientation; and a plurality of connecting tubes each connected to a corresponding one of said ink outlet tubes of said plurality of ink containers when said cassette case is at said loading position.
Claim 3
Dependent Claim
33 words
An ink supplying mechanism according to claim 1, wherein said cassette case includes on a side thereof an elastic coupling member for sealing said ink outlet tubes of said plurality of ink containers.
Claim 4
Dependent Claim
40 words
An ink supplying mechanism according to claim 1 or 2, wherein said plurality of ink containers are made of a laminated film including synthetic resin and are connected together at fusing areas by thermal fusing to form an integral unit.
Claim 5
Dependent Claim
36 words
An ink supplying mechanism according to claim 3, wherein said ink outlet tubes of said plurality of ink containers are arranged such that distances between adjacent ink outlet tubes alternately assume one distance and another distance.
Claim 6
Dependent Claim
36 words
An ink supplying mechanism according to claim 1 or 2, wherein said plurality of ink containers are separate from each other and said ink outlet tubes are located at off-centered positions of the respective ink containers.
Claim 7
Dependent Claim
24 words
An ink supplying mechanism according to claim 1, wherein at least two of said plurality of ink containers contain inks of the same color.
Claim 8
Dependent Claim
65 words
An ink cassette comprising: a plurality of ink containers each having an ink outlet tube for supplying ink out, said plurality of ink containers containing an ink of a different color; an elastic sealing member for sealing said ink outlet tubes of said plurality of ink containers; and a cassette case for accommodating said plurality of ink containers and for holding said elastic sealing member.
Claim 9
Dependent Claim
65 words
An ink cassette comprising: a plurality of ink containers each having an ink outlet tube for supplying ink out, said plurality of ink containers containing an ink of a different color; an elastic sealing member for sealing said ink outlet tubes of said plurality of ink containers; and a cassette case for accommodating said plurality of ink containers and for holding said elastic sealing member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |