Patent US3880439A successfully refreshed from Google Patents.
Patent US4293878A successfully refreshed from Google Patents.
US4293878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image projector for a television receiver
Assignee: Individual
•
Filing: 1980-05-12
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Granted: 1981-10-06
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Expires: 2000-05-12
Abstract
Abstract For a television receiver, an image projection device comprising a housing having a front wall with openings and an opening fitting over the television receiver screen. The housing includes an underside having support means for setting the angle of projection of the receiver. The receiver is adapted for connection with an inner shroud member extending through the open front wall. The housing includes an outer projection shroud surrounding the inner shroud having an open terminal end. The inner and outer shrouds include side walls which are parallel, converging and spaced apart. A lens projecting extension member including a lens mounted at the open terminal ends of the shroud and aligned with the concentrated image from the inner shroud.
Inventors
- 👤 Jacinto Sanchez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3141
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
207 words
In combination a television receiver having an image screen and an image projection device, said device comprising a housing sized to receive the television receiver, said housing including a front wall and said front wall having an opening sized and shaped to fit compatibly over the television receiver screen, means for supporting the housing and a television receiver in the housing with the opening of the screen of the television receiver and the housing tilted at a common angle with respect to a horizontal reference line through the screen, an inner projection shroud fixedly mounted to the television receiver screen, said inner shroud extending a predetermined distance from the screen, and said inner shroud having tapered side walls converging to a terminal end at a common plane, an outer shroud fitted over the open wall of the housing and enclosing said inner shroud, said outer shroud having an open terminal end spaced a predetermined distance from said open housing wall and said outer shroud having tapered side walls converging to a terminal end at a common plane spaced from said first mentioned common plane, and lens extension means fixedly connected to the open terminal end of the outer shroud and said lens extension means including a lens.
Claim 2
Dependent Claim
207 words
In combination a television receiver having an image screen and an image projection device, said device comprising a housing sized to receive the television receiver, said housing including a front wall and said front wall having an opening sized and shaped to fit compatibly over the television receiver screen, means for supporting the housing and a television receiver in the housing with the opening of the screen of the television receiver and the housing tilted at a common angle with respect to a horizontal reference line through the screen, an inner projection shroud fixedly mounted to the television receiver screen, said inner shroud extending a predetermined distance from the screen, and said inner shroud having tapered side walls converging to a terminal end at a common plane, an outer shroud fitted over the open wall of the housing and enclosing said inner shroud, said outer shroud having an open terminal end spaced a predetermined distance from said open housing wall and said outer shroud having tapered side walls converging to a terminal end at a common plane spaced from said first mentioned common plane, and lens extension means fixedly connected to the open terminal end of the outer shroud and said lens extension means including a lens.
Claim 3
Dependent Claim
22 words
The device as set forth in claim 1 wherein the front wall of the housing has openings sized for receiving television controls.
Claim 4
Dependent Claim
15 words
The device as set forth in claim 1 wherein the housing includes fixed support means.
Claim 5
Dependent Claim
18 words
The device as set forth in claim 2 wherein the housing includes a back wall having vent holes.
Claim 6
Dependent Claim
31 words
The device as set forth in claim 1 wherein the support means comprises an adjustable support means thereby allowing the angle of projection to be adjusted by the user as needed.
Claim 7
Dependent Claim
73 words
The device as set forth in claim 5 wherein the housing includes a rear end and the adjustable support means comprises, a stand hingedly connected to the housing, and wherein the stand includes a fitting having set screw locking means, and an operator rod having a first end connected to the shroud and a second end threaded through the fitting for slidable engagement therewith allowing the user to adjust the angle of projection.
Claim 8
Dependent Claim
39 words
The device as set forth in claim 6 wherein the outer shroud includes gasket means at its open terminal end having releasable locking means for releasably locking the lens extension member at the terminal end of the outer shroud.
Claim 9
Dependent Claim
113 words
The device as set forth in claim 6 wherein the outer shroud includes an underside having an underside edge fixedly connected to the housing with an operator fitting connected thereto and wherein the stand operator fitting comprises a guide means having set screw locking means and wherein the operator rod first end includes a universal attached to the shroud underside fitting and the second operator is end extends through the guide means and includes a handle means for sliding the operator to and fro in the guide means for adjusting the projection angle and the guide means includes locking means locking the operator in position thereby setting and fixing the angle of projection.
Claim 10
Dependent Claim
25 words
The device as set forth in claim 8 wherein the base includes an underside having wheel means for portable movement of the lens projection receiver.
References Cited (Backward Citations)
FR2310048A1
Cited
US4021105A
Cited
US4051535A
Cited
US4058837A
Cited
US4074322A
Cited
US4208676A
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US4215373A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |