US4045818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for controlling radiation
Assignee: Individual
•
Filing: 1975-11-28
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Granted: 1977-08-30
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Expires: 1995-11-28
Abstract
Abstract A method and device for controlling radiation from a television receiving apparatus and controlling the production of electrostatic units, the device comprising a first and second transparent plate juxtaposed against each other and between the plates a thin transparent mineral oil film. The device is further comprised of a means for sealing the mineral oil between the plates and a means for attaching the lens device to the viewing surface of the television receiving apparatus.
Inventors
- 👤 George M. Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:51
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/65; H01; H01J; H01J29/00; H01J29/86; H01J29/867; H01J29/868
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
103 words
A lens device for controlling radiation emanating from a television receiving apparatus and controlling the production of electrostatic units without any distortion of the television picture comprising: a. a first transparent plate; b. a second transparent plate juxtaposed against the first transparent plate; c. a composition consisting essentially of a thin transparent mineral oil film between the first and second transparent plates; d. a means for sealing the edges between the first and second transparent plates whereby the mineral oil is sealed between the plates; and e. a means for attaching the lens device to the viewing surface of the television receiving apparatus.
Claim 2
Dependent Claim
103 words
A lens device for controlling radiation emanating from a television receiving apparatus and controlling the production of electrostatic units without any distortion of the television picture comprising: a. a first transparent plate; b. a second transparent plate juxtaposed against the first transparent plate; c. a composition consisting essentially of a thin transparent mineral oil film between the first and second transparent plates; d. a means for sealing the edges between the first and second transparent plates whereby the mineral oil is sealed between the plates; and e. a means for attaching the lens device to the viewing surface of the television receiving apparatus.
Claim 3
Dependent Claim
20 words
The lens device of claim 1, wherein the first transparent plate and the second transparent plate are made of glass.
Claim 4
Dependent Claim
21 words
The lens device of claim 1, wherein the first transparent plate and the second transparent plate are made of a polymer.
Claim 5
Dependent Claim
32 words
The lens device of claim 1, wherein the first transparent plate and the second transparent plate are both concave, whereby when juxtaposed against each other a chamber is formed between the plates.
Claim 6
Dependent Claim
20 words
The lens device of claim 1, wherein the mineral oil has a refractive index of about 1.4 to about 1.8.
Claim 7
Dependent Claim
27 words
The lens device of claim 1, wherein the mineral oil has a viscosity of about 85 Saybolt Universal Seconds to 90 Saybolt Universal Seconds at 100° F.
Claim 8
Dependent Claim
19 words
The lens device of claim 1, wherein the mineral oil has an API of about 33.5 to about 34.
Claim 9
Dependent Claim
15 words
The lens device of claim 1, wherein the transparent film is about one-sixteenth inch thick.
Claim 10
Independent Claim
53 words
A method of controlling radiation emanating from a television receiving apparatus and controlling the production of electrostatic units without any distortion of the television picture comprising applying and maintaining a composition consisting essentially of a thin transparent mineral oil film, of an effective thickness to the viewing surface of the television receiving apparatus.
Claim 11
Independent Claim
53 words
A method of controlling radiation emanating from a television receiving apparatus and controlling the production of electrostatic units without any distortion of the television picture comprising applying and maintaining a composition consisting essentially of a thin transparent mineral oil film, of an effective thickness to the viewing surface of the television receiving apparatus.
Claim 12
Dependent Claim
19 words
The method of claim 9, wherein the mineral oil has a refractive index of about 1.4 to about 1.8.
Claim 13
Dependent Claim
26 words
The method of claim 9, wherein the mineral oil has a viscosity of about 85 Saybolt Universal Seconds to 90 Saybolt Universal Seconds at 100° F.
Claim 14
Dependent Claim
18 words
The method of claim 9, wherein the mineral oil has an API of about 33.5 to about 34.
Claim 15
Dependent Claim
14 words
The method of claim 9, wherein the transparent film is about one-sixteenth inch thick.
References Cited (Backward Citations)
US3632873A
Cited
US3610994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |