US4714934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for printing with ink jet chambers utilizing a plurality of orifices
Assignee: Exxon Mobil Corp
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Filing: 1985-11-26
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Granted: 1987-12-22
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Expires: 2005-11-26
Abstract
Abstract An impulse ink jet apparatus capable of printing bar codes comprises a plurality of side-by-side chambers extending along a line slanted with respect to the direction of scanning. Each of the chambers includes a plurality of orifices arranged along a line extending substantially transverse to the scanning direction and means for ejecting a plurality of droplets from the orifices of each chamber.
Inventors
- 👤 Robert L. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:22
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/12; G06K1/121; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/145; B41J2/155; B41J2/14; B41J2002/14475
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
An impulse ink jet apparatus for printing bars in a bar code comprising a plurality of side-by-side chambers extending along a line slanted with respect to the direction of scanning, each of said chambers including a plurality of orifices arrayed along a line extending substantially transverse to the scanning direction and means for ejecting a plurality of droplets from the orifices of each chamber including a plurality of transducers, one of said transducers being coupled to each of said chambers, said plurality of orifices for each of said chambers being arrayed along a line extending to right angles to said scanning direction such that the overall field of droplets ejected from each of said plurality of orifices prints a segment of a bar but does not overlap with the overall field of droplets ejected from each other said plurality of orifices which print a different segment of the bar.
Claim 2
Dependent Claim
149 words
An impulse ink jet apparatus for printing bars in a bar code comprising a plurality of side-by-side chambers extending along a line slanted with respect to the direction of scanning, each of said chambers including a plurality of orifices arrayed along a line extending substantially transverse to the scanning direction and means for ejecting a plurality of droplets from the orifices of each chamber including a plurality of transducers, one of said transducers being coupled to each of said chambers, said plurality of orifices for each of said chambers being arrayed along a line extending to right angles to said scanning direction such that the overall field of droplets ejected from each of said plurality of orifices prints a segment of a bar but does not overlap with the overall field of droplets ejected from each other said plurality of orifices which print a different segment of the bar.
Claim 3
Dependent Claim
31 words
The impulse ink jet apparatus of claim 1 wherein the overall field of droplets comprises the field of the plurality of droplets for one chamber multiplied by the number of chambers.
Claim 4
Dependent Claim
23 words
The impulse ink jet apparatus of claim 1 wherein said chamber line is slanted at an angle in excess of ten degrees (10°).
Claim 5
Dependent Claim
24 words
The impulse ink jet apparatus of claim 1 wherein said chamber line is slanted at a angle in an excess of fifteen degrees (15°).
Claim 6
Dependent Claim
20 words
The impulse ink jet apparatus of claim 1 wherein the number of chambers exceeds the number of orifices per chamber.
Claim 7
Dependent Claim
16 words
The impulse ink jet apparatus of claim 1 wherein said chambers are sequentially circular in cross-section.
Claim 8
Dependent Claim
32 words
The impulse ink jet apparatus of claim 1 wherein each of said transducers is elongated and adapted to expand and to contract along the axis of elongation so a to eject droplets.
References Cited (Backward Citations)
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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) | 1990-12-21 | 1991-06-22 | 1991-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-21 | 1995-06-22 | 1995-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-21 | 1999-06-22 | 1999-12-22 | $7700.00 | Window Closed / Lapsed |