US3567904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoprinting devices
Assignee: Individual
•
Filing: 1969-02-06
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Granted: 1971-03-02
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Expires: 1989-02-06
Abstract
Abstract In a thermoprinting device the electric resistors forming the printing elements serving to print marks on a thermosensitive sheet by thermocopying consist of film deposits in a plurality of superposed microlayers on a surface on an electrically insulated base member, said layers being separated by electrically insulating films. Important forms of superposed printing elements are complementary bar groups of a bar mosaic, and a full selection of full character printing elements placed on top of one another. Electronic means are provided for either activating the printing elements of a row successively or simultaneously, or simultaneously activating selected printing elements in a plurality of rows, thereby increasing printing speed, where signals representative of lines of characters to be printed are available in rapid succession, such as from data processing equipment.
Inventors
- 👤 Henning Gunnar Carlsen
- 👤 Erling Carlsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:47
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/335; B41J2/33555; B41J2/3357
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 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 supplying current to said printing elements in accordance with the signals thus received, characterized in that said printing elements consist of film deposits in a plurality of sUperposed layers on a surface of an electrically insulating base member, said layers being separated by electrically insulating films.
Claim 2
Dependent Claim
88 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 supplying current to said printing elements in accordance with the signals thus received, characterized in that said printing elements consist of film deposits in a plurality of sUperposed layers on a surface of an electrically insulating base member, said layers being separated by electrically insulating films.
Claim 3
Dependent Claim
58 words
A thermoprinting device as in claim 1, in which the printing elements in each layer comprise a row of bar groups forming subdivisions of a bar mosaic suitable for selectively printing any one of a number of characters forming a system of recording information, superposed bar groups in the various layers combining to form a complete bar mosaic.
Claim 4
Dependent Claim
70 words
A thermoprinting device as in claim 2, comprising a plurality of rows of superposed bar groups and in which said signal receiving and current supplying means are arranged for simultaneously picking all characters representative of all characters to be printed in a number of lines corresponding to that of rows of superposed bar groups and for simultaneously supplying current to all bars necessary for printing all the characters thus picked.
Claim 5
Dependent Claim
57 words
A thermoprinting device as in claim 1, in which the printing elements in each layer comprise a row of character printing elements of full character configuration, the character printing elements of the various layers being superposed and combining to form, in each position of the row, a full selection of characters forming a system of recording information.
Claim 6
Dependent Claim
76 words
A thermoprinting device as in claim 4, comprising a plurality of rows of superposed character printing elements and in which said signal receiving and current supplying means are arranged for simultaneously picking all signals representative of all characters to be printed in a number of lines corresponding to that of rows of superposed character elements and for simultaneously supplying current to all the corresponding character printing elements in all the rows of superposed character printing elements.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |