US3081670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead optical projector
Assignee: Simmon Brothers Inc
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Filing: 1961-12-08
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Granted: 1963-03-19
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Expires: 1981-12-08
Abstract
No abstract record available.
Inventors
- 👤 Louis L Weisglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:50
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132; Y; Y10; Y10S; Y10S353/00; Y10S353/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
AN OVERHEAD OPTICAL PROJECTING DEVICE COMPRISING: A BASE FOR SUPPORTING A FILM TRANSPARENCY AND PROVIDED WITH A LIGHT SOURCE FOR PASSING A BEAM OF LIGHT THROUGH SAID TRANSPARENCY, A SUPPORT SECURED TO SAID BASE, AN ADJUSTABLE HEAD PIVOTALLY CARRIED BY SAID SUPPORT HAVING A LIGHT INLET OPENING AND AN ANGULARLY DISPOSED EXIT OPTICAL BEAM OPENING AND MOVABLE BY AN OPERATOR TO PROJECT THE AXIS OF THE EXIT OPTICAL LIGHT BEAM FROM A HORIZONTAL PLANE TO ONE FORMING AN ACUTE ANGLE RELATIVE THERETO, AND A MIRROR ROTATABLY SUPPORTED BY AND INSIDE SAID ADJUSTABLE HEAD TO ONE SIDE OF THE PIVOTAL CONNECTION THEREOF AND NORMALLY DISPOSED AT A PRESELECTED ANGLE RELATIVE TO THE INLET AND EXIT BEAM OPENINGS OF SAID ADJUSTABLE HEAD, AND SAID MIRROR BEING ALSO PIVOTALLY AND SLIDABLY CONNECTED TO SAID SUPPORT ON THE OPPOSITE SIDE OF THE PIVOTAL CONNECTION OF SAID ADJUSTABLE HEAD THEREWITH TO CAUSE ROTATION OF SAID MIRROR ABOUT ITS SUPPORT AND ALIGNMENT OF THE AXIS OF THE REFLECTED LIGHT BEAM WITH SAID EXIT OPTICAL BEAM OPENING UPON ADJUSTMENT OF SAID HEAD TO ANY ANGULAR POSITION.
Claim 2
Dependent Claim
179 words
AN OVERHEAD OPTICAL PROJECTING DEVICE COMPRISING: A BASE FOR SUPPORTING A FILM TRANSPARENCY AND PROVIDED WITH A LIGHT SOURCE FOR PASSING A BEAM OF LIGHT THROUGH SAID TRANSPARENCY, A SUPPORT SECURED TO SAID BASE, AN ADJUSTABLE HEAD PIVOTALLY CARRIED BY SAID SUPPORT HAVING A LIGHT INLET OPENING AND AN ANGULARLY DISPOSED EXIT OPTICAL BEAM OPENING AND MOVABLE BY AN OPERATOR TO PROJECT THE AXIS OF THE EXIT OPTICAL LIGHT BEAM FROM A HORIZONTAL PLANE TO ONE FORMING AN ACUTE ANGLE RELATIVE THERETO, AND A MIRROR ROTATABLY SUPPORTED BY AND INSIDE SAID ADJUSTABLE HEAD TO ONE SIDE OF THE PIVOTAL CONNECTION THEREOF AND NORMALLY DISPOSED AT A PRESELECTED ANGLE RELATIVE TO THE INLET AND EXIT BEAM OPENINGS OF SAID ADJUSTABLE HEAD, AND SAID MIRROR BEING ALSO PIVOTALLY AND SLIDABLY CONNECTED TO SAID SUPPORT ON THE OPPOSITE SIDE OF THE PIVOTAL CONNECTION OF SAID ADJUSTABLE HEAD THEREWITH TO CAUSE ROTATION OF SAID MIRROR ABOUT ITS SUPPORT AND ALIGNMENT OF THE AXIS OF THE REFLECTED LIGHT BEAM WITH SAID EXIT OPTICAL BEAM OPENING UPON ADJUSTMENT OF SAID HEAD TO ANY ANGULAR POSITION.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |