US4599625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink tank frangible lever for pressure co-action with a ink bag
Assignee: Canon Inc
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Filing: 1985-03-20
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Granted: 1986-07-08
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Expires: 2005-03-20
Abstract
Abstract An ink tank comprises a deformable ink bag for storing ink provided in a case, wherein a low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion. An ink-jet recording apparatus comprises a recording head unit having a discharging port for forming a flying droplet by discharging ink, and an ink tank for storing ink supplied to said recording head unit, wherein means for breaking a low strength portion of a case for said ink tank is provided to fixing means for fixing said ink tank in which a deformable ink bag for storing ink is provided in said case, said low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion.
Inventors
- 👤 Koji Terasawa
- 👤 Akira Miyakawa
- 👤 Takehiko Kiyohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:41
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17513; B41J2002/17516
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
44 words
An ink tank comprising a deformable ink bag for storing ink provided in a case, wherein a low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion.
Claim 2
Dependent Claim
44 words
An ink tank comprising a deformable ink bag for storing ink provided in a case, wherein a low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion.
Claim 3
Dependent Claim
16 words
An ink tank according to claim 1, wherein said case is made of a plastic material.
Claim 4
Dependent Claim
25 words
An ink tank according to claim 1, wherein said low strength portion comprises a plurality of notches and at least one connecting portion provided therebetween.
Claim 5
Dependent Claim
21 words
An ink tank according to claim 3, wherein a thickness of said connecting portion is smaller than that of said case.
Claim 6
Dependent Claim
17 words
An ink tank according to claim 3, wherein said connecting portion is separately provided from said case.
Claim 7
Dependent Claim
16 words
An ink tank according to claim 1, wherein said lever constitutes a portion of said case.
Claim 8
Dependent Claim
19 words
An ink tank according to claim 1, wherein said low strength portion is a groove provided in said case.
Claim 9
Dependent Claim
101 words
An ink-jet recording apparatus comprising a recording head unit having a discharging port for forming a flying droplet by discharging ink, and an ink tank for storing ink supplied to said recording head unit, wherein means for breaking a low strength portion of a case for said ink tank is provided to fixing means for fixing said ink tank in which a deformable ink bag for storing ink is provided in said case, said low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion.
Claim 10
Dependent Claim
101 words
An ink-jet recording apparatus comprising a recording head unit having a discharging port for forming a flying droplet by discharging ink, and an ink tank for storing ink supplied to said recording head unit, wherein means for breaking a low strength portion of a case for said ink tank is provided to fixing means for fixing said ink tank in which a deformable ink bag for storing ink is provided in said case, said low strength portion is formed in a member constituting said case, and a lever for pressing said ink bag is formed by breaking said low strength portion.
Claim 11
Dependent Claim
15 words
An apparatus according to claim 8, wherein said case is made of a plastic material.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 8, wherein said low strength portion comprises a plurality of notches and at least one connecting portion provided therebetween.
Claim 13
Dependent Claim
20 words
An apparatus according to claim 10, wherein a thickness of said connecting portion is smaller than that of said case.
Claim 14
Dependent Claim
16 words
An apparatus according to claim 10, wherein said connecting portion is separately provided from said case.
Claim 15
Dependent Claim
15 words
An apparatus according to claim 8, wherein said lever constitutes a portion of said case.
Claim 16
Dependent Claim
18 words
An apparatus according to claim 8, wherein said low strength portion is a groove provided in said case.
Claim 17
Dependent Claim
18 words
An apparatus according to claim 8, wherein said breaking means comprises a press member and a spring member.
Claim 18
Dependent Claim
21 words
An apparatus according to claim 8, wherein said recording head unit and said ink tank are formed integrally with each other.
Claim 19
Dependent Claim
29 words
An apparatus according to claim 8, wherein said recording head unit and said ink tank are separately provided and separately fixed at a main body side of said apparatus.
Claim 20
Dependent Claim
36 words
An apparatus according to claim 8, wherein said recording head unit and said ink tank are separately provided and are fixed at a main body side of said apparatus after being formed integrally with each other.
References Cited (Backward Citations)
US3838796A
Cited
US4119034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |