US3907419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic multi-visual control system
Assignee: Individual
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Filing: 1973-12-26
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Granted: 1975-09-23
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Expires: 1993-12-26
Abstract
Abstract A multi-visual control system which permits single button control of multiple visual presentations in a variety of preplanned sequences. A latching/stepping relay coupled with a matrix/cross-bar switch board provide a system of control which affords positive interlocking of a plurality of slide and movie projectors, studio or auditorium lighting, singly or in any multiple of combinations. The matrix switchboard has a plurality of columns of adjacent connecting pins with one side of each column connected to a separate slide projector, movie projector or lighting system. The adjacent pins of each column of the switchboard are connected manually with a plug, toggle switch or pushbutton switch. The stepping relay advances sequentially to select a particular connecting pin in one or more columns of the matrix switchboard to operate one or more slide projectors, movie projector or lighting system.
Inventors
- 👤 Norman P Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06; G03B23/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
188 words
A multi-visual control system for operating a plurality of electrical display devices in predetermined combinations and sequences comprising: a. a matrix switchboard having a plurality of columns of first and second adjacent connecting pins; b. a stepping relay having a plurality of sections equal to the number of columns of the matrix switchboard with each section having a plurality of contacts equal to the number of connecting pins in each column; said stepping relay having a separate section connected to the first adjacent connecting pins of each column with each contact connected to a separate connecting pin; c. an electrical device to be controlled connected to the second adjacent connecting pins of each column and to each section of the stepping relay; d. a power supply connected to said electrical devices and said stepping relay; e. means for sequentially advancing said stepping relay by applying a D.C. voltage from said power supply; and f. means for connecting first and second adjacent connecting pins of said matrix switchboard in a preselected arrangement whereby each step of said stepping relay operates one or more electrical devices in a predetermined sequence.
Claim 2
Dependent Claim
188 words
A multi-visual control system for operating a plurality of electrical display devices in predetermined combinations and sequences comprising: a. a matrix switchboard having a plurality of columns of first and second adjacent connecting pins; b. a stepping relay having a plurality of sections equal to the number of columns of the matrix switchboard with each section having a plurality of contacts equal to the number of connecting pins in each column; said stepping relay having a separate section connected to the first adjacent connecting pins of each column with each contact connected to a separate connecting pin; c. an electrical device to be controlled connected to the second adjacent connecting pins of each column and to each section of the stepping relay; d. a power supply connected to said electrical devices and said stepping relay; e. means for sequentially advancing said stepping relay by applying a D.C. voltage from said power supply; and f. means for connecting first and second adjacent connecting pins of said matrix switchboard in a preselected arrangement whereby each step of said stepping relay operates one or more electrical devices in a predetermined sequence.
Claim 3
Dependent Claim
34 words
The multi-visual control system of claim 1 wherein said means for applying a D.C. voltage to said stepping relay comprises: a. a remote controlled receiver; and b. means for energizing said remote controlled receiver.
Claim 4
Dependent Claim
20 words
The multi-visual control system of claim 2 wherein the means for energizing the remote controlled receiver is a wireless transmitter.
Claim 5
Dependent Claim
21 words
The multi-visual control system of claim 2 wherein the means for energizing the remote controlled receiver is a taped audio pulse.
Claim 6
Dependent Claim
49 words
The multi-visual control system of claim 2 wherein the electrical devices being controlled includes: a. one or more slide projectors; and b. a momentary relay connected in series with the slide projector and stepping relay whereby the slide projector is energized by said momentary relay for single frame operation.
Claim 7
Dependent Claim
20 words
The multi-visual control system of claim 1 wherein said means for applying a D.C. voltage is a momentary pushbutton switch.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |