US3600834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus
Assignee: AT&T Teletype Corp
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Filing: 1969-06-27
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Granted: 1971-08-24
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Expires: 1989-06-27
Abstract
Abstract Blowing forces are directed through selected compressed air openings toward films of ink held in a regularly perforated carrier, such as an endless mesh, for rupturing selected films and unblocking corresponding interstices to form a succession of characters, outlined in the carrier by the optical contrast between blocked and unblocked interstices.
Inventors
- 👤 Michael E Stamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/377
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
Display apparatus for temporarily displaying a succession of intelligence characters and comprising: a carrier having a plurality of interstices; a container for liquid having an opening; means for driving said carrier relative to said container opening for loading said interstices with films of the liquid; means for blowing compressed air and having a plurality of aligned openings disposed in alignment with a plurality of said interstices and; means for moving compressed air through any selected openings to form successive outline of characters of intelligence by rupturing the films in the interstices aligned with said openings.
Claim 2
Dependent Claim
95 words
Display apparatus for temporarily displaying a succession of intelligence characters and comprising: a carrier having a plurality of interstices; a container for liquid having an opening; means for driving said carrier relative to said container opening for loading said interstices with films of the liquid; means for blowing compressed air and having a plurality of aligned openings disposed in alignment with a plurality of said interstices and; means for moving compressed air through any selected openings to form successive outline of characters of intelligence by rupturing the films in the interstices aligned with said openings.
Claim 3
Dependent Claim
62 words
Apparatus according to claim 1 wherein said carrier is endless, being formed in a loop and arranged for movement in a circuitous path, said apparatus characterized in that said blowing means is disposed adjacent said carrier outside of said loop, and has a region disposed downstream of said container and said blowing means in which the formed characters of intelligence are displayed.
Claim 4
Dependent Claim
42 words
Apparatus according to claim 2 wherein said carrier, when driven, has a changing display section of vertical orientation disposed in said region and above said blowing means, and said driving mean is arranged for moving said display section upwardly through said region.
Claim 5
Dependent Claim
25 words
Apparatus according to claim 3 further characterized by means for preventing liquid downstream of and above said region from flowing upstream onto said display section.
Claim 6
Dependent Claim
31 words
Apparatus according to claim 2 characterized by illuminating means for highlighting character outline and disposed adjacent the face of the carrier within said loop downstream of and above said blowing means.
Claim 7
Dependent Claim
130 words
Apparatus for temporarily displaying a succession of intelligence characters, comprising: an endless mesh carrier having a plurality of intersecting strands defining a rectangular matrix of rectangular openings of such size that a film of liquid can be held across each opening; means for applying a light-blocking liquid ink to the carrier to deposit films occluding each of the openings; means for blowing streams of compressed air at selected openings of the carrier to rupture the films in said selected openings and form a succession of characters in the carrier delineated by the presence or absence of ink films; and means for advancing the carrier such that successive portions pass the ink-applying means, the blowing means, a display area downstream of the blowing means, and then return to the ink-applying means.
Claim 8
Dependent Claim
130 words
Apparatus for temporarily displaying a succession of intelligence characters, comprising: an endless mesh carrier having a plurality of intersecting strands defining a rectangular matrix of rectangular openings of such size that a film of liquid can be held across each opening; means for applying a light-blocking liquid ink to the carrier to deposit films occluding each of the openings; means for blowing streams of compressed air at selected openings of the carrier to rupture the films in said selected openings and form a succession of characters in the carrier delineated by the presence or absence of ink films; and means for advancing the carrier such that successive portions pass the ink-applying means, the blowing means, a display area downstream of the blowing means, and then return to the ink-applying means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |