Patent US4658298A successfully refreshed from Google Patents.
US4658298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable type audio-visual sensory apparatus
Assignee: EL PLANNING SYSTEM Ltd
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Filing: 1985-05-29
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Granted: 1987-04-14
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Expires: 2005-05-29
Abstract
Abstract A portable case for audio-visual apparatus includes a first case portion having a bottom portion and three side walls connected thereto forming a substantial portion of a generally rectangular box. A second case portion has a front and top cover and is connected to the first portion to complete a generally rectangular box. A partition piece divides the interior of the case into a first and second section. A TV monitor is removably mounted in the first section and a device for developing the signal displayed on the TV monitor is removably mounted in the second section. A switching power source in the case receives power from an external source and supplies it to the TV monitor and developing means. A shielding component is provided to prevent any noises from the switching power sources from interfering with operation of the TV monitor and developing device.
Inventors
- 👤 Mituo Takeda
- 👤 Katunobu Odamoto
- 👤 Keiji Uraki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:14
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H05; H05K; H05K11/00; Y; Y10; Y10S; Y10S224/00; Y10S224/908; Y10S224/929; Y10S224/93
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
169 words
A portable case for audio-visual apparatus, comprising: a first case portion including a bottom portion and three side walls connected thereto so as to form a substantial portion of a generally rectangular box; a second case portion including a front cover and a top cover connected thereto, said second portion being connected at one edge thereof to said first case portion to complete, when in a closed position, said generally rectangular box; a partition piece formed in said case for dividing said case into a first section and a second section; a TV monitor removably mounted in said first section; means for developing the signal displayed on said TV monitor mounted in said second section; a switching power source mounted in said case for receiving power from an external source and supplying power to said TV monitor and said developing means; and shield means, located in said case, for preventing any noises from said switching power source from interfering with the operation of said TV monitor and developing means.
Claim 2
Dependent Claim
169 words
A portable case for audio-visual apparatus, comprising: a first case portion including a bottom portion and three side walls connected thereto so as to form a substantial portion of a generally rectangular box; a second case portion including a front cover and a top cover connected thereto, said second portion being connected at one edge thereof to said first case portion to complete, when in a closed position, said generally rectangular box; a partition piece formed in said case for dividing said case into a first section and a second section; a TV monitor removably mounted in said first section; means for developing the signal displayed on said TV monitor mounted in said second section; a switching power source mounted in said case for receiving power from an external source and supplying power to said TV monitor and said developing means; and shield means, located in said case, for preventing any noises from said switching power source from interfering with the operation of said TV monitor and developing means.
Claim 3
Dependent Claim
23 words
The portable case for audio-visual apparatus in accordance with claim 1, wherein said shield means is a box surrounding said switching power source.
Claim 4
Dependent Claim
36 words
The portable case for audio-visual apparatus in accordance with claim 2, further comprising a first shield means surrounding a portion of said TV monitor and a second shield means surrounding a portion of said developing means.
Claim 5
Dependent Claim
20 words
The portable case for audio-visual apparatus in accordance with claim 2, wherein said box is constructed of a conductive material.
Claim 6
Dependent Claim
25 words
The portable case for audio-visual apparatus in accordance with claim 2, wherein said switching power source is mounted in said second section of said case.
Claim 7
Dependent Claim
20 words
The portable case for audio-visual apparatus in accordance with claim 2, wherein said partition piece is constructed of conductive material.
Claim 8
Dependent Claim
22 words
The portable case for audio-visual apparatus in accordance with claim 1, further comprising shield means surrounding a portion of said TV monitor.
Claim 9
Dependent Claim
23 words
The portable case for audio-visual apparatus in accordance with claim 7, wherein said shield means surrounds a rear portion of said TV monitor.
Claim 10
Dependent Claim
26 words
The portable case for audio-visual apparatus in accordance with claim 7, wherein said shield means surrounding a portion of said TV monitor is a U-shaped plate.
Claim 11
Dependent Claim
18 words
The portable case for audio-visual apparatus in accordance with claim 9, wherein said plate is made of aluminum.
Claim 12
Dependent Claim
28 words
The portable case for audio-visual apparatus in accordance with claim 7, wherein said shield means surrounding a portion of said TV monitor is constructed of a conductive material.
Claim 13
Dependent Claim
22 words
The portable case for audio-visual apparatus in accordance with claim 1, further comprising shield means surrounding a portion of said developing means.
Claim 14
Dependent Claim
23 words
The portable case for audio-visual apparatus in accordance with claim 12, wherein said shield means surrounds a rear portion of said developing means.
Claim 15
Dependent Claim
23 words
The portable case for audio-visual apparatus in accordance with claim 12, wherein said shield means surrounding said developing means is an L-shaped plate.
Claim 16
Dependent Claim
22 words
The portable case for audio-visual sensory apparatus in accordance with claim 14, wherein said shielding plate is incorporated into said partition piece.
Claim 17
Dependent Claim
18 words
The portable case for audio-visual apparatus in accordance with claim 14, wherein said plate is made of aluminum.
Claim 18
Dependent Claim
28 words
The portable case for audio-visual apparatus in accordance with claim 12, wherein said shield means surrounding a portion of said developing means is constructed of a conductive material.
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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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |