Patent US4376945A successfully refreshed from Google Patents.
US4376945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet recording device
Assignee: Canon Inc
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Filing: 1981-05-27
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Granted: 1983-03-15
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Expires: 2001-05-27
Abstract
Abstract A device for recording comprising ejecting a liquid recording medium by heat energy which comprises a recording head composed of a discharging orifice for ejecting the liquid recording medium in a form of droplets, an inlet for introducing the liquid recording medium, a liquid chamber for holding the liquid recording medium, and a heating element for applying heat energy to the liquid recording medium in the liquid chamber, and a means for applying voltage pulse to control heating by the heating element, the distance between the surface of the heating element and the liquid recording medium being not more than 100 microns.
Inventors
- 👤 Toshitami Hara
- 👤 Yasushi Sato
- 👤 Yasushi Takatori
- 👤 Yoshiaki Shirato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:52
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/14016; B41J2/14032; B41J2/1404; B41J2/1408; B41J2/14088; B41J2/14112; B41J2/14129; B41J2/14201; B41J2/1433; B41J2/16; B41J2/1606; B41J2002/14379; B41J2002/14387; B41J2202/00; B41J2202/01; B41J2202/03
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
66 words
A device for recording comprising a liquid chamber for holding a liquid recording medium and having a discharging orifice; heating means for heating the liquid recording medium in the liquid chamber and for ejecting the liquid recording medium from the discharging orifice, and an adhesive for adhering a plurality of components of said device together, said adhesive being capable of forming a three dimensional network structure.
Claim 2
Independent Claim
66 words
A device for recording comprising a liquid chamber for holding a liquid recording medium and having a discharging orifice; heating means for heating the liquid recording medium in the liquid chamber and for ejecting the liquid recording medium from the discharging orifice, and an adhesive for adhering a plurality of components of said device together, said adhesive being capable of forming a three dimensional network structure.
Claim 3
Dependent Claim
15 words
A device according to claim 1, in which said heating means comprises plural heating elements.
Claim 4
Dependent Claim
20 words
A device according to claim 1, in which the liquid chamber is provided with heating means in the inside thereof.
Claim 5
Dependent Claim
25 words
A device according to claim 3, in which the distance between said heating means and the liquid recording medium is not more than 100 microns.
Claim 6
Dependent Claim
15 words
A device according to claim 3, in which said heating means is an electrothermal transducer.
Claim 7
Independent Claim
57 words
A device for recording comprising a liquid chamber for holding a liquid recording medium and having a discharging orifice; said device further comprising heating means for heating the liquid recording medium in the liquid chamber and ejecting a droplet of the liquid recording medium from the discharging orifice, and means for preliminarily heating the liquid recording medium.
Claim 8
Independent Claim
57 words
A device for recording comprising a liquid chamber for holding a liquid recording medium and having a discharging orifice; said device further comprising heating means for heating the liquid recording medium in the liquid chamber and ejecting a droplet of the liquid recording medium from the discharging orifice, and means for preliminarily heating the liquid recording medium.
Claim 9
Dependent Claim
21 words
A device according to claim 6, in which the preliminarily heating means is disposed on the outside of the liquid chamber.
Claim 10
Dependent Claim
21 words
A device according to claim 6, in which the preliminarily heating means is disposed in the inside of the liquid chamber.
Claim 11
Dependent Claim
19 words
A device according to claim 6, in which the preliminarily heating means is provided with a temperature controlling portion.
Claim 12
Dependent Claim
31 words
A device according to claim 6, further comprising a path connected to the liquid chamber for feeding the liquid recording medium, said preliminarily heating means being disposed in said feeding path.
Claim 13
Dependent Claim
22 words
A device according to claim 6, in which said heating means and the preliminarily heating means are disposed in the liquid chamber.
Claim 14
Dependent Claim
17 words
A device according to claim 6, in which said heating means contains a heat generating resistor layer.
Claim 15
Dependent Claim
18 words
A device according to claim 6, in which said heating means is a thin film resistive heater element.
Claim 16
Dependent Claim
25 words
A device according to claim 6, in which a protecting film is present at an interface between said heating means and the liquid recording medium.
Claim 17
Dependent Claim
15 words
A device according to claim 6, in which said heating means comprises plural heating elements.
Claim 18
Dependent Claim
10 words
A device according to claim 6, comprising plural discharging orifices.
Claim 19
Dependent Claim
20 words
A device according to claim 6, in which said heating means is disposed in the inside of the liquid chamber.
Claim 20
Dependent Claim
25 words
A device according to claim 6, in which said distance between the heating means and the liquid recording medium is not more than 100 microns.
Claim 21
Dependent Claim
15 words
A device according to claim 6, in which said heating means is an electrothermal transducer.
Claim 22
Dependent Claim
22 words
A device according to claim 1, in which at least one of said components of said device is provided with a groove.
Claim 23
Dependent Claim
24 words
A device according to claim 1, in which at least one of said components of said device is provided with a plurality of grooves.
Claim 24
Dependent Claim
12 words
A device according to claim 1, comprising a plurality of discharging orifices.
Claim 25
Dependent Claim
15 words
A device according to claim 1, in which said adhesive is a thermosetting resin bond.
Claim 26
Dependent Claim
34 words
A device according to claim 1, in which said adhesive is a complex bond comprising a plurality of thermosetting resin bond or a blend of a thermosetting resin bond and a thermoplastic resin bond.
Claim 27
Dependent Claim
36 words
A device according to claim 23 or 24, in which said thermosetting resin bond is any of urea resin bond, melamine resin bond, phenolformalin resin bond, resorcinolformaldehyde resin bond, m-xyleneformaldehyde resin bond and furan resin bond.
Claim 28
Dependent Claim
19 words
A device according to claim 23 or 24, in which said thermosetting resin bond is an epoxy resin bond.
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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |