Patent US4359561A successfully refreshed from Google Patents.
Patent US3893128A successfully refreshed from Google Patents.
US3893128A
Expired / Lapsed
US
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Recording apparatus for electrographic imaging
Assignee: Robert Bosch GmbH
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Filing: 1973-11-23
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Granted: 1975-07-01
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Expires: 1993-11-23
Abstract
Abstract A recording head comprising a plurality of wires embedded uniformly spaced from each other in parallel relationship in insulating material with at least one end of each wire projecting beyond the insulating material and serving as a writing electrode. Connector means are connected to each of the wires for applying electrical signals thereto. These connecting means are preferably in the form of contact pins, extending normal to the wires, and each connected at one end to the respective wire and projecting with the other end beyond the insulating material.
Inventors
- 👤 Hans Bauerlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:44
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/385; B41J2/39; B41J2/395
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A recording head for recording on a recording medium, comprising a carrier; a plurality of one-piece electrically conductive wires embedded in said carrier in closely spaced parallel relationship, each of said wires having opposite end portions projecting beyond said carrier and adapted to serve as writing electrodes; and a pLurality of electrically conductive contact pins, each partially embedded in said carrier in a direction substantially perpendicular to said wires and having a first end connected to said wires intermediate said end portions thereof and a second end projecting outwardly beyond said carrier, one of said end portions of the respective wire being adapted to conduct electrical signals to the other of said end portions of the same wire so that said other end portion serves as a writing electrode and, at the option of a user, said second end of each pin being adapted to conduct electrical signals to the associated wire so that either or both of said end portions of the wire serve as writing electrodes for interchangeably or simultaneously writing on the recording medium.
Claim 2
Dependent Claim
177 words
A recording head for recording on a recording medium, comprising a carrier; a plurality of one-piece electrically conductive wires embedded in said carrier in closely spaced parallel relationship, each of said wires having opposite end portions projecting beyond said carrier and adapted to serve as writing electrodes; and a pLurality of electrically conductive contact pins, each partially embedded in said carrier in a direction substantially perpendicular to said wires and having a first end connected to said wires intermediate said end portions thereof and a second end projecting outwardly beyond said carrier, one of said end portions of the respective wire being adapted to conduct electrical signals to the other of said end portions of the same wire so that said other end portion serves as a writing electrode and, at the option of a user, said second end of each pin being adapted to conduct electrical signals to the associated wire so that either or both of said end portions of the wire serve as writing electrodes for interchangeably or simultaneously writing on the recording medium.
Claim 3
Dependent Claim
28 words
A recording head as defined in claim 1, wherein said carrier is a a supporting plate formed of electrically insulating material supporting all of said electrical contact pins.
Claim 4
Dependent Claim
34 words
A recording head as defined in claim 1, wherein said carrier comprises two layers of flexible plastic material connected in abutting relationship to each other with said plurality of one-piece conductive wires sandwiched therebetween.
Claim 5
Dependent Claim
17 words
A recording head as defined in claim 1, wherein said embedding means comprises substantially rigid insulating material.
Claim 6
Dependent Claim
34 words
A recording head as defined in claim 1, wherein said contact pins are respectively connected to adjacent one-piece conductive wires at points displaced from each other in the direction of said one-piece conductive wires.
Claim 7
Dependent Claim
36 words
A recording head as defined in claim 5, wherein the connecting points between the one-piece conductive wires and the contact pins of the plurality of one-piece conductive wires are displaced from each other through equal distances.
References Cited (Backward Citations)
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Cited
US3363261A
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US3618118A
Cited
US3623122A
Cited
US3798756A
Cited
US3718936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |