US4384419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color changing display
Assignee: Individual
•
Filing: 1981-11-27
•
Granted: 1983-05-24
•
Expires: 2001-11-27
Abstract
Abstract A color changing display in which various elements and portions of the display are formed as shallow transparent pockets on a supporting back panel. Each pocket is connected in a closed fluid circuit to an individual reservoir containing a suitably colored fluid. Actuating mechanism is used to raise and lower each reservoir individually so that fluid can flow into or drain out of selected pockets in any desired sequence or timed program. The result, viewed from the front through the transparent pockets, has the appearance of a display building up in a particular sequence or changing color in various patterns.
Inventors
- 👤 Willard J. Parr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:21
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
147 words
A color changing display, comprising: an upright supporting back panel; a display panel secured to said back panel, the display panel having elements of the display embossed therein and forming shallow individual pockets against the back panel, at least portions of the display being transparent; each of said pockets having an inlet in the uppermost portion and an outlet in the lowermost portion thereof; a source of colored fluid coupled between the inlet and outlet of each pocket, each source including a reservoir with flexible hoses connected therefrom to the inlet and outlet, and each reservoir, pocket and interconnecting hoses being an individual closed fluid system; and actuating means connected to said reservoirs to move each reservoir selectively between a raised position above the inlet and a lowered position below the outlet of the associated pocket to cause fluid to flow into and out of the pocket.
Claim 2
Dependent Claim
147 words
A color changing display, comprising: an upright supporting back panel; a display panel secured to said back panel, the display panel having elements of the display embossed therein and forming shallow individual pockets against the back panel, at least portions of the display being transparent; each of said pockets having an inlet in the uppermost portion and an outlet in the lowermost portion thereof; a source of colored fluid coupled between the inlet and outlet of each pocket, each source including a reservoir with flexible hoses connected therefrom to the inlet and outlet, and each reservoir, pocket and interconnecting hoses being an individual closed fluid system; and actuating means connected to said reservoirs to move each reservoir selectively between a raised position above the inlet and a lowered position below the outlet of the associated pocket to cause fluid to flow into and out of the pocket.
Claim 3
Dependent Claim
50 words
A color changing display according to claim 1, and including a supporting structure having a plurality of arms pivotally mounted thereon, each arm having one of said reservoirs attached thereto; said actuating means including actuators coupled individually to said arms to swing the reservoirs between the raised and lowered positions.
References Cited (Backward Citations)
FR534440A
Cited
US1796991A
Cited
US2162897A
Cited
US2235636A
Cited
US3321857A
Cited
US3704528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |