US3822005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for printing characters by points
Assignee: Sagem SA
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Filing: 1973-03-12
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Granted: 1974-07-02
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Expires: 1993-03-12
Abstract
Abstract This invention relates to a device for printing characters by points wherein an arrangement is provided for rendering visible the last character printed. The printing of characters is effectuated by means of movable printing elements located in a guiding member. Said guiding member in the vicinity of the printing support is bevel-edged and provides a dihedron one face of which forms an angle of nearly 90* with the part of the said support located on the side of the already printed character so as to render the last printed character visible. This arrangement permits to correct more easily printing errors.
Inventors
- 👤 R Murat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:44
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/22; B41J2/23; B41J2/235; B41J2/25
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
Printing device for printing on a printing sheet columns of marks belonging to a character of a printing line comprising: elongated printing elements set one upon another in a vertical plane; control means for longitudinally moving said printing elements; a guiding member comprising two parts the first of which is generally perpendicular to said printing sheet and which is bevelled at its end near said printing sheet so that said end has the shape of a dihedron having one face making an angle slightly less than 90* with the part of said printing sheet located on the side of the already printed characters for rendering visible the last printed character and a second part having a face forming a slight angle with respect to the printing sheet; said printing elements passing between the two guiding member parts for printing; and means for moving said guiding member in the direction of said printing line.
Claim 2
Dependent Claim
153 words
Printing device for printing on a printing sheet columns of marks belonging to a character of a printing line comprising: elongated printing elements set one upon another in a vertical plane; control means for longitudinally moving said printing elements; a guiding member comprising two parts the first of which is generally perpendicular to said printing sheet and which is bevelled at its end near said printing sheet so that said end has the shape of a dihedron having one face making an angle slightly less than 90* with the part of said printing sheet located on the side of the already printed characters for rendering visible the last printed character and a second part having a face forming a slight angle with respect to the printing sheet; said printing elements passing between the two guiding member parts for printing; and means for moving said guiding member in the direction of said printing line.
Claim 3
Dependent Claim
65 words
Printing device according to claim 1 wherein said characters have a fixed step and a fixed width on the printng line, characterized in that the difference in length between said step and said width is greater than the distance between the end of the guiding member near the printing sheet on the side of already printed characters and the vertical plane of the printing members.
Claim 4
Dependent Claim
35 words
Printing device according to claim 1 further comprising an inking ribbon applied against the faces of said dihedron and against a calibration hole provided in said guiding member in which are lodged said printing elements.
References Cited (Backward Citations)
US1874700A
Cited
US3312163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |