Patent US5099226A successfully refreshed from Google Patents.
US4733486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign apparatus
Assignee: INDEL A CORP OF SWEDEN AB
•
Filing: 1986-03-19
•
Granted: 1988-03-29
•
Expires: 2006-03-19
Abstract
Abstract A sign apparatus includes a sign cabinet with a window (4) inclined towards the observation plane. Inside the window, which is a color filter, there is arranged a panel (5) with electrically driven character elements (7). The angle of inclination (β) of the panel is equal to, or less than, the angle of inclination (α) of the window. Each character element is formed by obliquely disposed rows of light emitting diodes.
Inventors
- 👤 Sten Gawell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:21
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
Sign apparatus intended for text and/or numerical display outdoors and including electrically driven character elements (7) each comprising rows of LED's defining a dot raster surface disposed on a panel (5), the former being illuminable and extinguishable from a remotely placed operating unit, and grouped such that different illuminated combinations form different characters, characterized in that the panel (5) is mounted inside a sign cabinet formed with a roof (1), intended for erection at a relatively great height above the observation plane where the observer stands, and has a window (4) comprising a color filter at a distance in front of the panel (5), said window (4) being disposed at a predetermined angle (α) of approximately twenty to thirty degrees to the vertical, so that the surface of the window is inclined towards the observation plane, the panel (5) being disposed inside the window at an angle (β) of approximately fifteen degrees to the vertical and being mounted for pivotal movement to adjust said angle of inclination (β).
Claim 2
Dependent Claim
168 words
Sign apparatus intended for text and/or numerical display outdoors and including electrically driven character elements (7) each comprising rows of LED's defining a dot raster surface disposed on a panel (5), the former being illuminable and extinguishable from a remotely placed operating unit, and grouped such that different illuminated combinations form different characters, characterized in that the panel (5) is mounted inside a sign cabinet formed with a roof (1), intended for erection at a relatively great height above the observation plane where the observer stands, and has a window (4) comprising a color filter at a distance in front of the panel (5), said window (4) being disposed at a predetermined angle (α) of approximately twenty to thirty degrees to the vertical, so that the surface of the window is inclined towards the observation plane, the panel (5) being disposed inside the window at an angle (β) of approximately fifteen degrees to the vertical and being mounted for pivotal movement to adjust said angle of inclination (β).
Claim 3
Dependent Claim
76 words
Apparatus as claimed in claim 1, characterized in that the panel (5) includes a frame (12) adapted for carrying a plurality of individual carrier members (10) corresponding to the number of desired characters, each member carrying character elements (7) for forming different characters and which members are individually pivotable about a vertical pivoting axis (11) in the frame (12) for assuming a converging angle (δ) to a point on the observation plane situated at a distance.
Claim 4
Dependent Claim
16 words
Apparatus as claimed in claim 2, characterized in that the converging angles (δ) is between 0°-10°.
Claim 5
Dependent Claim
40 words
Apparatus as claimed in claim 1, characterized in that the LED's (8) of each character element (7) are arranged in rows which form an acute angle (γ) to the longitudinal axis of the character element, each row including 3-6 LED's.
Claim 6
Dependent Claim
52 words
Apparatus as claimed in claim 1, characterized in that the depth of the roof (2) and floor (1) of the sign cabinet are predetermined by the angle of inclination (α) of the window (4) to the observation plane, the window being fastened to the free outer edges of the roof and floor.
Claim 7
Dependent Claim
24 words
Apparatus as claimed in claim 1, characterized in that the mounting of the panel (5) is arranged at the floor (1) of the cabinet.
References Cited (Backward Citations)
US262417A
Cited
US894509A
Cited
GB301913A
Cited
US1805209A
Cited
GB328971A
Cited
US2221606A
Cited
US2230152A
Cited
US2286246A
Cited
US3187320A
Cited
US3163949A
Cited
GB1188537A
Cited
US3570158A
Cited
DE2259641A1
Cited
US3786499A
Cited
FR2414768A1
Cited
US4254453A
Cited
DE3146480A1
Cited
GB2131589A
Cited
GB2144254A
Cited
US4603496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |