Patent US5249833A successfully refreshed from Google Patents.
US5249833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-vehicle display device
Assignee: Panasonic Holdings Corp
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Filing: 1992-07-17
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Granted: 1993-10-05
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Expires: 2012-07-17
Abstract
Abstract An on-vehicle display device mounted on the bed of a vehicle has a display screen unit which is vertically divided into at least three screens. When the display device is housed, the display screens are disposed in parallel with each other. When the display device is constructed, one of the display screens is moved to the uppermost position, and another is moved to the lowermost position by a horizontal extension hydraulic unit, the remaining screen being moved to an intermediate position by a diagonal extension hydraulic unit, to obtain a very large screen.
Inventors
- 👤 Takashi Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:26
CPC Classifications
G; G09; G09F; G09F21/00; G09F21/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
95 words
An on-vehicle display device comprising: an upper screen mounted on a multistage extension hydraulic unit for vertical movement; an intermediate screen mounted on a diagonal extension hydraulic unit for diagonal upward and downward movement so as to be moveable between an upper and lower position, said intermediate screen being disposed below said upper screen when said intermediate screen is in said upper position; and a lower screen mounted on a horizontal extension hydraulic unit for horizontal movement, said lower screen being disposed below said intermediate screen when said intermediate screen is in said upper position.
Claim 2
Dependent Claim
95 words
An on-vehicle display device comprising: an upper screen mounted on a multistage extension hydraulic unit for vertical movement; an intermediate screen mounted on a diagonal extension hydraulic unit for diagonal upward and downward movement so as to be moveable between an upper and lower position, said intermediate screen being disposed below said upper screen when said intermediate screen is in said upper position; and a lower screen mounted on a horizontal extension hydraulic unit for horizontal movement, said lower screen being disposed below said intermediate screen when said intermediate screen is in said upper position.
Claim 3
Dependent Claim
20 words
An on-vehicle display device according to claim 1, wherein said hydraulic units are provided at two ends of said screens.
Claim 4
Dependent Claim
164 words
An on-vehicle display device comprising: a vehicle having a bed; at least three display screens which extend in a direction of movement of said vehicle and which are disposed on said bed in parallel with each other; a first extension hydraulic unit for vertically moving a first one of said display screens; a second extension hydraulic unit for moving a second one of said display screens on said bed in a direction perpendicular to the direction of movement of said vehicle; and a third extension hydraulic unit for diagonally moving a third one of said display screens upward and downward; wherein when said display device is constructed, said third one of said display screens is disposed by said third extension hydraulic unit between the first one of said display screens vertically moved by said first extension hydraulic unit and the second one of said display screens moved to a position below said first one of said display screens by said second extension hydraulic unit.
Claim 5
Dependent Claim
164 words
An on-vehicle display device comprising: a vehicle having a bed; at least three display screens which extend in a direction of movement of said vehicle and which are disposed on said bed in parallel with each other; a first extension hydraulic unit for vertically moving a first one of said display screens; a second extension hydraulic unit for moving a second one of said display screens on said bed in a direction perpendicular to the direction of movement of said vehicle; and a third extension hydraulic unit for diagonally moving a third one of said display screens upward and downward; wherein when said display device is constructed, said third one of said display screens is disposed by said third extension hydraulic unit between the first one of said display screens vertically moved by said first extension hydraulic unit and the second one of said display screens moved to a position below said first one of said display screens by said second extension hydraulic unit.
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) | 1996-10-04 | 1997-04-05 | 1997-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-04 | 2001-04-05 | 2001-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-04 | 2005-04-05 | 2005-10-05 | $7700.00 | Window Closed / Lapsed |