US3555241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoprinting devices
Assignee: Individual
•
Filing: 1969-02-06
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Granted: 1971-01-12
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Expires: 1989-02-06
Abstract
Abstract In a thermoprinting device the printing elements necessary for printing any one of the characters of a system of recording information are distributed among a plurality of rows which are successively activated for printing on the same area of a thermosensitive carrier. The printing elements may be in the form of rows of bar groups forming subdivisions of a bar mosaic. Alternatively, the printing elements may be in the form of rows of character printing elements of full character configuration, the number of rows corresponding to the total number of characters of the system. In the latter case high speed printing may be obtained by progressively printing from all the rows at a time.
Inventors
- 👤 Henning Gunnar Carlsen
- 👤 Erling Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:49
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/335; B41J2/33555; B41J2/3357
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
A thermoprinting device comprising a system of printing elements in the form of electric resistors, means for maintaining a thermosensitive record carrier in cooperative relationship with said resistors, and means for receiving signals representative of information to be printed and for selectively activating said printing elements by supplying current thereto in accordance with the signals thus received, characterized in that said printing elements are in the form of a plurality of rows of bar groups, each bar group being a subdivision of a complete bar mosaic, the bar groups in corresponding positions in all the rows combining to form a complete bar mosaic, means being provided for feeding said record carrier forward in steps equal to the spacing of said rows, thereby successively presenting the same area of the record carrier to said rows, said signal receiving and current supplying means supplying signals to each of said rows of printing elements when said rows are in printing relationship with said area of the record carrier.
Claim 2
Dependent Claim
165 words
A thermoprinting device comprising a system of printing elements in the form of electric resistors, means for maintaining a thermosensitive record carrier in cooperative relationship with said resistors, and means for receiving signals representative of information to be printed and for selectively activating said printing elements by supplying current thereto in accordance with the signals thus received, characterized in that said printing elements are in the form of a plurality of rows of bar groups, each bar group being a subdivision of a complete bar mosaic, the bar groups in corresponding positions in all the rows combining to form a complete bar mosaic, means being provided for feeding said record carrier forward in steps equal to the spacing of said rows, thereby successively presenting the same area of the record carrier to said rows, said signal receiving and current supplying means supplying signals to each of said rows of printing elements when said rows are in printing relationship with said area of the record carrier.
Claim 3
Dependent Claim
178 words
A thermoprinting device as in claim 1, in which there are a first and a second row of bar groups placed at a spacing corresponding to the desired line spacing of the record, means being provided for keeping the reCord carrier in printing relationship with both rows of bar groups at a time and for feeding the record carrier forward relative to the rows of bar groups in such a manner that upon activation of the first row of bar groups by means of a first signal representative of a first line of characters to be printed the record carrier is relatively advanced through a distance corresponding to the desired line spacing of the record and then remains stationary until the second row of bar groups has been activated by means of said first signal and said first row of bar groups has been activated by means of said first signal and said first row of bar groups has been activated by means of a second signal representative of the next following line of characters to be printed.
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |