Patent US4377814A successfully refreshed from Google Patents.
US4377814A
Expired / Lapsed
US
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Ink jet printing machine
Assignee: Xerox Corp
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Filing: 1981-04-17
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Granted: 1983-03-22
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Expires: 2001-04-17
Abstract
Abstract An ink jet printing machine in which adjacent nozzles are isolated from one another to prevent energization of a nozzle other than a selected nozzle.
Inventors
- 👤 John R. Debesis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:51
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/145
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
An ink jet printing machine, including: an array of nozzles; a plurality of housings for storing a supply of writing fluid for each nozzle of said array of nozzles, each of said plurality of housings having a channel therein in communication with one of the nozzles of said array of nozzles; a plurality of transducers, each of said transducers being positioned closely adjacent to the channel in one of said plurality of housings so that activation of said transducer ejects droplets of writing fluid from the nozzle in communication with the channel adjacent said transducer; and two corrugated members interposed between adjacent housings of said plurality of housings for isolating each of said array of nozzles from one another to prevent interaction between said array of nozzles from energizing nozzles other than the selected nozzles of said array of nozzles wherein the apexes of the intersecting walls of one of said corrugated members engage the apexes of intersecting walls of an adjacent corrugated member.
Claim 2
Dependent Claim
164 words
An ink jet printing machine, including: an array of nozzles; a plurality of housings for storing a supply of writing fluid for each nozzle of said array of nozzles, each of said plurality of housings having a channel therein in communication with one of the nozzles of said array of nozzles; a plurality of transducers, each of said transducers being positioned closely adjacent to the channel in one of said plurality of housings so that activation of said transducer ejects droplets of writing fluid from the nozzle in communication with the channel adjacent said transducer; and two corrugated members interposed between adjacent housings of said plurality of housings for isolating each of said array of nozzles from one another to prevent interaction between said array of nozzles from energizing nozzles other than the selected nozzles of said array of nozzles wherein the apexes of the intersecting walls of one of said corrugated members engage the apexes of intersecting walls of an adjacent corrugated member.
Claim 3
Dependent Claim
14 words
A printing machine according to claim 1, wherein said transducer includes a piezoelectric member.
Claim 4
Dependent Claim
35 words
A printing machine according to claim 1, wherein the apexes of the intersecting walls of said corrugated member engaging the adjacent corrugated member have apexes thereof interposed therebetween and spaced from the adjacent corrugated member.
Claim 5
Dependent Claim
24 words
A printing machine according to claim 1, wherein the apexes of the intersecting walls of said corrugated member are substantially normal to one another.
References Cited (Backward Citations)
US3693179A
Cited
US4032929A
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US4057807A
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US4303927A
Cited
US4243995A
Cited
US4326206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |