US4339763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording with writing fluids and drop projection means therefor
Assignee: Konica Minolta Inc
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Filing: 1980-11-26
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Granted: 1982-07-13
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Expires: 2000-11-26
Abstract
Abstract A recording apparatus and method is disclosed which includes a writing fluid source feeding a drop projection means which ejects a series of droplets of writing fluid from a nozzle in a discontinuous stream with sufficient velocity to traverse a substantially straight trajectory to a recording medium. The volume of each droplet is individually controlled by electrical pulses applied to the projection means from an electronic driver. A plurality of such projection means may be employed and connected to control means whereby to print or form predetermined graphical intelligence patterns on a recording medium.
Inventors
- 👤 Edmond L. Kyser
- 👤 Stephan B. Sears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:57
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/015; B41J2/04; B41J2/045; B41J2/04501; B41J2/04541; B41J2/04581; B41J2/04593; B41J2/135; B41J2/14; B41J2/14201; B41J2/14298; B41J2/145; B41J2/21; B41J2/2121; B41J2/2128; G; G01; G01D; G01D15/00; G01D15/16; G01D15/18; H; H10; H10N; H10N30/00; H10N30/80; H10N30/802; B41J2002/14379
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A printing ink supply device for ink jet printers comprising: at least two plates located opposite to each other and interconnected, said first plate being provided with pumping means, said pumping means constituting a piezoelectric crystal and an operatively connected diaphragm, a pump chamber for said pumping means being constituted of a space formed between the pumping means and the second plate, a channel formed in said second plate by means of an elongated shallow groove in a surface facing said first plate together with an adjacent surface of said first plate, a capillary nozzle, said space communicating with said capillary nozzle by means of said channel.
Claim 2
Dependent Claim
107 words
A printing ink supply device for ink jet printers comprising: at least two plates located opposite to each other and interconnected, said first plate being provided with pumping means, said pumping means constituting a piezoelectric crystal and an operatively connected diaphragm, a pump chamber for said pumping means being constituted of a space formed between the pumping means and the second plate, a channel formed in said second plate by means of an elongated shallow groove in a surface facing said first plate together with an adjacent surface of said first plate, a capillary nozzle, said space communicating with said capillary nozzle by means of said channel.
Claim 3
Dependent Claim
32 words
A printing ink supply device as claimed in claim 1, wherein said channel is provided with an enlarged portion and a narrower portion, the latter portion being connected to said capillary nozzle.
Claim 4
Dependent Claim
114 words
A printing ink supply device for ink jet printers comprising: at least two plates located opposite to each other and interconnected, said first plate being provided with pumping means, said pumping means constituting a piezoelectric crystal and an operatively connected diaphragm, a pump chamber for said pumping means being constituted of a space formed between the pumping means and the second plate, a channel formed in said second plate by means of an elongated shallow groove in a surface facing said first plate together with an adjacent surface of said first plate, a capillary nozzle in one edge of said second plate, said space communicating with said capillary nozzle by means of said channel.
Claim 5
Dependent Claim
114 words
A printing ink supply device for ink jet printers comprising: at least two plates located opposite to each other and interconnected, said first plate being provided with pumping means, said pumping means constituting a piezoelectric crystal and an operatively connected diaphragm, a pump chamber for said pumping means being constituted of a space formed between the pumping means and the second plate, a channel formed in said second plate by means of an elongated shallow groove in a surface facing said first plate together with an adjacent surface of said first plate, a capillary nozzle in one edge of said second plate, said space communicating with said capillary nozzle by means of said channel.
Claim 6
Dependent Claim
31 words
A printing ink device as claimed in claim 3, wherein said channel is provided with an enlarged portion and a narrower portion, the latter portion being connected to said capillary nozzle.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |